TY - CONF A1 - Österle, Werner A1 - Dmitriev, A.I. A1 - Urban, Ingrid ED - Jayashree Bijwe, T1 - Characterization of up to date brake friction materials T2 - IWAAFC-1, International Workshop on Advances in Asbestos free Friction Composites CY - Delhi, India DA - 2006-01-05 PY - 2006 SP - 21 EP - 35 CY - Delhi, India AN - OPUS4-18700 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Österle, Werner A1 - Urban, Ingrid A1 - Gesatzke, Wolfgang A1 - Rooch, Heidemarie ED - Bartz, Wilfried J. T1 - Characterization and evaluation of the formation of friction layers during braking with conventional PMC friction material against a cast iron rotor T2 - 14th International Colloquium Tribology, "Tribology and Lubrication Engineering" CY - Stuttgart, Germany DA - 2004-01-13 PY - 2004 SN - 3-924813-54-X VL - 1 SP - 483 EP - 489 PB - Techn. Akad. Esslingen CY - Ostfildern AN - OPUS4-3494 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Senoner, Mathias A1 - Wirth, Thomas A1 - Unger, Wolfgang A1 - Österle, Werner A1 - Kaiander, I. A1 - Sellin, R. L. A1 - Bimberg, D. ED - Wilkening, G. ED - Koenders, L. T1 - Testing the Lateral Resolution in the Nanometre Range with a New Type of Certified Reference Material T2 - NanoScale 2004 Seminar ; 6th Seminar on Quantitative Microscopy ; 2nd Seminar on Nanoscale Calibration Standards and Methods CY - Braunschweig, Germany DA - 2004-03-25 KW - Laterale Auflösung KW - Nanometrologie KW - Nanotechnologie KW - Oberflächenanalytik KW - Zertifiziertes Referenzmaterial PY - 2004 SN - 3-527-40502-X DO - https://doi.org/10.1002/3527606661.ch21 SP - 282 EP - 294 PB - Wiley-VCH CY - Weinheim AN - OPUS4-7541 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - RPRT A1 - Seah, M.P. A1 - Spencer, S.J. A1 - Bensebaa, F. A1 - Vickridge, I. A1 - Danzebrink, H. A1 - Krumrey, M. A1 - Gross, Thomas A1 - Österle, Werner A1 - Wendler, E. A1 - Rheinländer, B. A1 - Azuma, Y. A1 - Kojima, I. A1 - Suzuki, N. A1 - Suzuki, M. A1 - Tanuma, S. A1 - Moon, D.W. A1 - Lee, H.J. A1 - Cho, H.M. A1 - Chen, H.Y. A1 - Wee, A. T. S. A1 - Osipowicz, T. A1 - Pan, J.S. A1 - Jordaan, W.A. A1 - Hauert, R. A1 - Klotz, U. A1 - van der Marel, C. A1 - Verheijen, M. A1 - Tamminga, Y. A1 - Jeynes, C. A1 - Bailey, P. A1 - Biswas, S. A1 - Falke, U. A1 - Nguyen, N.V. A1 - Chandler-Horowitz, D. A1 - Ehrstein, J.R. A1 - Muller, D. A1 - Dura, J.A. T1 - Ultra-thin SiO2 on Si, Part V: Results of a CCQM Pilot Study of Thickness Measurements KW - SiO2 KW - Thin films KW - Thickness KW - XPS KW - Ellipsometry KW - TEM PY - 2003 SN - 1473-2734 SP - 57 pages AN - OPUS4-4118 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Österle, Werner T1 - Controlling the microstructure of engineering materials - a measure for obtaining taylored properties T2 - Iren University of Science and Technology CY - Tehran, Iran DA - 2002-05-21 PY - 2002 AN - OPUS4-6106 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Österle, Werner T1 - The focused ion beam technique - eine interessante Alternative, auch für konventionelle Werkstoffe T2 - VDEh-Arbeitskreis, Elektronenmicroskopie CY - Duisburg, Germany DA - 2002-11-07 PY - 2002 AN - OPUS4-6108 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Nebauer, E. A1 - Österle, Werner A1 - Hilsenbeck, J. A1 - Würfl, J. A1 - Klein, A. T1 - XTEM and TFXRD investigations of ohmic Ti/Al/Ti/Au/WSiN contacts on AlGaN/GaN HFET layer systems N2 - The microstructural features of the high-temperature-stable ohmic contact system Ti/Al/Ti/Au/WSiN on AlGaN/GaN were investigated using analytical transmission electron microscopy and thin film x-ray diffraction. For two typical rapid thermal annealing steps at 750 ◦C (non-ohmic behaviour) and 850 ◦C (ohmic behaviour) the intermetallic phases at the metal–semiconductor interface are presented. Increased annealing leads to the transformation of an Al2Au-AlAuTi phase mixture to a mixture of Al2Au-Al3Au8 phases and the formation of Ti-Al-nitride layers at the interfaces. In light of these results the electrical contact properties are discussed. KW - Ohmic contact KW - WSiN diffusion barrier KW - Rapid thermal annealing KW - Intermetallic phases KW - AlGaN/GaN heterostructure PY - 2002 SN - 0268-1242 VL - 17 SP - 249 EP - 254 PB - IOP Publishing Ltd AN - OPUS4-38543 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Würfl, J. A1 - Hilsenbeck, J. A1 - Nebauer, E. A1 - Tränkle, G. A1 - Obloh, H. A1 - Österle, Werner T1 - Reliability of AIGaN/GaN HFETs comprising refractory ohmic and Schottky contacts N2 - Recent progress in the development of A1GaN/GaN heterostructure field effect transistors (HFETs) Shows the great potential towards high temperature / high power electronics. Nevertheless investigations on reliability properties of GaN-based devices are still at the beginning. The frequently used Ti/A1 based ohmic and Pt based Schottky contacts suffer from strong Degradation after aging at elevated temperatures. Therefore new contact systems have to be employed. Concerning the source and drain metallization we used an amorphous WSiN barrier layer as applied for GaAs on top of the Ti/Al-based ohmic contact. This technique significantly reduces the in-diffusion of the Au-containing overlayer, furthermore the barrier layer guaranties smooth contact morphology after RTA and aging, respectively. For the Schottky metallization the Ir/Au system was used. Reliability studies performed on HFET devices containing refractory Ti/A1/Ti/Au/WSiN ohmic and Ir/Au Schottky contacts demonstrate stable conditions during 120h aging at 500°C. KW - Semiconductor KW - Reliability KW - Contact resistance KW - Heterostructure field effect transistor PY - 2000 SN - 0026-2714 VL - 40 SP - 1689 EP - 1693 PB - Elsevier AN - OPUS4-38541 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Bettge, Dirk A1 - Österle, Werner T1 - “Cube slip” in near-[111] oriented specimens of a single-crystal nickel-base superalloy N2 - In the past few years, it has been discussed with increasing frequency, whether cube slip does occur in gamma' hardened nickel-base superalloys. Occurrence of cube slip has consequences for the modeling of orientation dependence of the CRSS. Until now, there are only few experimental investigations. In principle, cube slip should be possible in primitive cubic lattices (e.g. L12 ordered gamma' phase) but not in face centered cubic ones (e.g. Ni solid solution). The most favourable specimen orientations are near [111], where the Schmid factors for this type of glide exceed those for octahedral systems. There are two basic methods to detect cube slip: macroscopic slip trace analysis and Transmission electron microscopy (TEM) investigation of the dislocation structure. Few observations of cube slip by macroscopic slip traces are reported in the literature. But it is still uncertain under which test conditions cube slip occurs and what the dislocation mechanisms are. Cube slip was observed during tensile or compression tests of several first generation superalloys, but it seems not to occur during shear creep deformation (e.g. CMSX-4 at 980°C), and it is also lacking under conventional tensile or compression loading, if the gmma' particles are small. No observations were ever reported of dislocations gliding on {001} planes in matrix channels. KW - Cube slip KW - Nickel-base superalloy KW - Dislocations KW - TEM PY - 1999 DO - https://doi.org/10.1016/S1359-6462(98)00446-1 SN - 1359-6462 VL - 40 IS - 4 SP - 389 EP - 395 PB - Elsevier AN - OPUS4-38220 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Reier, T. A1 - Schultze, J. W. A1 - Österle, Werner A1 - Buchal, C. T1 - Nucleation and growth of AlN nanocrystallites prepared by N+2 implantation N2 - The formation of AlN films prepared by N+2 ion implantation into aluminium was investigated using X-ray and Auger photoelectron spectroscopy ( XPS, AES) as well as cross-sectional transmission electron microscopy (XTEM). After 100-keV N+2 implantation of low doses (1×1017 cm−2), the formation of hexagonal AlN nanocrystals (crystal size <5 nm, Ncrystal=1017 cm−3) was observed. Their orientation is strongly correlated with the aluminium matrix. With the dose increasing to 3×1017 cm−2, crystal growth follows, finally forming a homogeneous AlN-layer. Furthermore, the diffraction patterns show an increasing amount of misorientation with increasing dose. From the crystal size distribution, we conclude that continuous nucleation takes place. Samples implanted with an energy of 3 keV exhibit analogous behaviour. Nitride growth was further investigated using microstructured AlN formed by 3-keV implantation through movable TEM-masks (structure size: 15–150 mm). In the case of high N+2 doses (D&5×1017 cm−2), AlN is detected by AES in the shielded area at a distance of up to 10 mm from the exposed region. The Diffusion coefficient was calculated to be 10−10 cm2 s−1. The formation of AlN proceeds in two steps. After a continuous nucleation, diffusion-assisted Crystal growth takes place until a homogeneous AlN layer results. KW - Aluminium nitride KW - Ion implantation KW - Nanocrystallites KW - Surface analysis KW - XTEM PY - 1998 SN - 0257-8972 VL - 103-104 SP - 415 EP - 420 PB - Elsevier AN - OPUS4-38539 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Kuhmann, J. F. A1 - Chiang, C. H. A1 - Harde, P. A1 - Reier, F. A1 - Österle, Werner A1 - Urban, Ingrid A1 - Klein, A. T1 - Pt thin-film metallization for FC-bonding using SnPb60/40 solder bump metallurgy N2 - Platinum does not form any adherent oxides and can be easily wetted by tin-based solders. Platinum is also an available metallization in semiconductor laboratories. Therefore we investigated the diffusion of platinum thin-film metallizations into eutectic tin–lead solder by using a high-resolution secondary ion mass spectroscopy (SIMS) profiling from the back side. It is shown that an intermetallic phase (PtSn4) is formed during soldering, which controls the consumption of platinum during soldering and in operation. The consumption of platinum follows the well-known parabolic diffusion law. The activation energy of this process is 0.63 eV. Even at extended heating cycles of 2 min at 250°C, 190 nm from the original 300 nm of the platinum film remain undissolved. This high stability makes platinum a very attractive thin-film metallization for flip-chip (FC) bonding of new microsystems. KW - Pt thin film metallization KW - FC solder bonding KW - Diffusion KW - SIMS PY - 1998 SN - 0921-5093 VL - A242 SP - 22 EP - 25 PB - Elsevier AN - OPUS4-38540 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Sievert, Rainer A1 - Österle, Werner A1 - Olschewski, Jürgen A1 - Ziebs, Josef T1 - Physical interpretation of a viscoplastic model applied to high temperature performance of a nickel-base superalloy PY - 1997 SN - 0179-4841 SN - 0044-3093 VL - 88 SP - 416 EP - 424 PB - Hanser CY - München AN - OPUS4-2547 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Bettge, Dirk A1 - Jiao, F. A1 - Österle, Werner A1 - Ziebs, Josef ED - Lütjering, G. T1 - An extended model of the tension-compression asymmetry of single crystal nickel-base superalloys T2 - 6th International Fatigue Congress CY - Berlin, Germany DA - 1996-05-06 PY - 1996 SN - 0-08-042268-3 VL - 2 IS - 2 SP - 885 EP - 889 PB - Pergamon CY - Oxford AN - OPUS4-2508 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Fedelich, Bernard A1 - Frenz, Holger A1 - Österle, Werner A1 - Ohm, Katrin ED - Petit, J. T1 - Experimental and numerical evaluation of fatigue crack initiation and propagation for IN738LC at 850°C N2 - Interrupted LCF-tests at 850 deg C for Inconel 738LC have been carried out and the specimens have been intensively examined by REM to quantify the evolution of fatigue damage. Surface crack nucleation at oxidatized grain boundaries and coalescence of neighboring flaws occurred during the whole experiment. An anomalous fast single crack growth is observed just after nucleation, followed by a relative stagnation of the propagation in absence of coalescence. A statistical model is proposed that describes these pheonmena. It leads to an integro-differential equation for the crack density f(c,n) after n cycles, similar to the Bolzmann equation which describes the collision of molecules in a dilute gas. T2 - 11th Biennial European Conference on Fracture (ECF) CY - Poitiers-Futuroscope, France DA - 1996-09-03 PY - 1996 SN - 0-947817-92-1 VL - 2 SP - 1237 EP - 1242 PB - EMAS CY - Warley, West Midlands AN - OPUS4-2512 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Kuhmann, J. A1 - Harde, P. A1 - Pech, O. A1 - Pittroff, W. A1 - Preuß, A. A1 - Adolphi, B. A1 - Wirth, Thomas A1 - Österle, Werner ED - Reichl, H. T1 - Fluxless flip-chip bonding for the photonic assembly - comparison between evaporated SnPb (60/40) and AuSn (80/20) solder T2 - 5th International Conference on Micro-Electro-, -Opto-, -Mechanical Systems and Components CY - Potsdam, Germany DA - 1996-09-17 PY - 1996 SN - 3-8007-2200-3 VL - 5 SP - 91 EP - 97 PB - VDE-Verl. CY - Berlin AN - OPUS4-2544 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Urban, Ingrid A1 - Dörfel, Ilona A1 - Österle, Werner A1 - Schierhorn, Eike T1 - Interfaces between hard coating systems and substrates T2 - 11th European Conference on Electron Microscopy (EUREM-11) CY - Dublin, Ireland DA - 1996-08-26 PY - 1996 SN - 2-9600163-0-0 PB - CESM, Committee of European Societies of Microscopy CY - Brussels AN - OPUS4-2545 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Jiao, Feng A1 - Österle, Werner A1 - Portella, Pedro Dolabella A1 - Ziebs, Josef T1 - Cyclic hardening of alloy 800h under biaxial loading T2 - International Congress Stainless Steels '96 ; 2nd European congress CY - Düsseldorf and Neuss, Germany DA - 1996-06-03 KW - Hochtemperaturtechnik KW - Beanspruchung, zyklisch KW - Stahl, austenitisch KW - Legierung 800 H PY - 1996 SN - 3-514-00601-6 SP - 292 EP - 293 PB - Verl. Stahleisen CY - Düsseldorf AN - OPUS4-695 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Fedelich, Bernard A1 - Frenz, Holger A1 - Österle, Werner A1 - Ohm, Katrin ED - Lütjering, G. T1 - A stochastic model for LCF small crack growth in a nickel-base superalloy T2 - 6th International Fatigue Congress CY - Berlin, Germany DA - 1996-05-06 PY - 1996 SN - 0-08-042268-3 VL - 96 IS - 2 SP - 1263 EP - 1268 PB - Pergamon CY - Oxford AN - OPUS4-2511 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Österle, Werner A1 - Portella, Pedro Dolabella A1 - Ziebs, Josef A1 - Jiao, Feng ED - Lütjering, G. T1 - Mechanical behaviour of alloy 800h under cyclic biaxial loading T2 - 6th International Fatigue Congress CY - Berlin, Germany DA - 1996-05-06 KW - Legierung KW - Belastung, zyklisch KW - Beanspruchung, mechanisch PY - 1996 SN - 0-08-042268-3 VL - 2 IS - 2 SP - 989 EP - 994 PB - Pergamon CY - Oxford AN - OPUS4-669 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Ressel, P. A1 - Österle, Werner A1 - Urban, Ingrid A1 - Klein, A. A1 - Vogel, K. A1 - Kräutle, H. T1 - Transmission electron microscopy study of rapid thermally annealed Pd/Ge contacts on In0.53Ga0.47As N2 - Phase formation in rapid thermally annealed Pd/Ge contacts on In0.53Ga0.47As has been investigated by means of cross-sectional transmission electron microscopy, convergent-beam electron diffraction, and energy-dispersive x-ray analysis. Solid-phase regrowth is observed to occur similarly as in Pd/Ge contacts on GaAs or InP. The reaction starts at low temperatures with the formation of an amorphous Pd–In–Ga–As layer, which crystallizes at elevated temperatures yielding hexagonal Pd4In0.53Ga0.47As being first described in this work. At temperatures .250 °C, this phase decomposes due to epitaxial solid-phase regrowth of In0.53Ga0.47As and formation of Pd–Ge phases. The stable composition is reached at temperatures .350 °C with excess Ge diffused through top Pd–Ge to the contact interface and growing epitaxially on the semiconductor. KW - Semiconductor KW - Thin film contact layer KW - Electron microscopy KW - Intermetallic phases PY - 1996 DO - https://doi.org/10.1063/1.363348 SN - 0021-8979 VL - 80 IS - 7 SP - 3910 EP - 3914 AN - OPUS4-38537 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Österle, Werner T1 - Alternative approaches to the microstructure-strength-relationship of LC and HSLA steels T2 - International Conference on HSLA Steels'95 CY - Beijing, China DA - 1995-10-25 PY - 1995 AN - OPUS4-3342 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Merkel, U. A1 - Nebauer, E. A1 - Österle, Werner A1 - Würfl, J. ED - Brueck, S. R. J. T1 - RTA-treated ohmic contacts to GaAs containing WSiN barriers T2 - MRS Spring Meeting on Rapid Thermal and Integrated Processing CY - San Francisco, CA, USA DA - 1995-04-17 PY - 1995 SN - 1-558-99290-1 SN - 0272-9172 N1 - Serientitel: Materials Research Society symposium proceedings – Series title: Materials Research Society symposium proceedings IS - 387 SP - 431 EP - 436 PB - Materials Research Soc. CY - Pittsburgh, Pa. AN - OPUS4-2504 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Österle, Werner ED - Liu, G. T1 - Alternative approaches to the microstructure-strength-relationship of LC and HSLA steels T2 - Third International Conference on HSLA Steels CY - Beijing, PR China DA - 1995-10-25 PY - 1995 SN - 7-504-62091-2 SP - 243 EP - 246 PB - China Science and Technology Press CY - Beijing AN - OPUS4-2506 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Bettge, Dirk A1 - Österle, Werner A1 - Ziebs, Josef T1 - Temperature dependence of yield strength and elongation of the nickel-base superalloy IN 738 LC and the corresponding microstructural evolution PY - 1995 SN - 0179-4841 SN - 0044-3093 VL - 86 SP - 190 EP - 197 PB - Hanser CY - München AN - OPUS4-2481 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Sievert, Rainer A1 - Österle, Werner A1 - Olschewski, Jürgen A1 - Ziebs, Josef T1 - Physical interpretation of a viscoplastic model applied to high temperature performance of a nickel-base superalloy T2 - 7th International Conference on Mechanical Behaviour of Materials CY - The Hague, Netherlands DA - 1995-01-01 PY - 1995 SP - 557 EP - 558 CY - Den Haag AN - OPUS4-2507 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Österle, Werner A1 - Li, Pengxi T1 - Microstructural changes induced by grinding of nickel-base superalloy IN 738 LC and their relationship to machining parameters PY - 1994 SN - 0179-4841 SN - 0044-3093 VL - 85 SP - 20 EP - 27 PB - Hanser CY - München AN - OPUS4-2477 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Österle, Werner T1 - Microstructure strength relationships for LC and HSLA steels PY - 1994 SN - 0177-4832 VL - 65 SP - 338 EP - 344 PB - Verl. Stahleisen CY - Düsseldorf AN - OPUS4-2478 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Österle, Werner A1 - Urban, Ingrid A1 - Nebauer, E. T1 - Alloying reactions of Au-Ni-Ge ohmic contacts to n-GaAs PY - 1994 SP - 781 EP - 782 CY - Les Ulis AN - OPUS4-2479 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Österle, Werner A1 - Li, Pengxi T1 - Development of nanocrystalline microstructures in nickel-base superalloys by grinding and mechanical alloying T2 - 10th European Congress on Electron Microscopy (EUREM) CY - Granada, Spain DA - 1992-09-07 PY - 1992 SP - 313 EP - 314 CY - Stockholm AN - OPUS4-2472 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Österle, Werner A1 - Gesatzke, Wolfgang A1 - Byrne, G. T1 - TEM study on the effect of machining on the microstructure of a soft magnetic Ni76Fe17Cu5CrMo2 alloy PY - 1991 SN - 0179-4841 SN - 0044-3093 VL - 82 SP - 902 EP - 906 PB - Hanser CY - München AN - OPUS4-2470 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Aurich, Dietmar A1 - Österle, Werner T1 - On the combination of elementary strengthening mechanisms in a microalloyed steel PY - 1990 SN - 0863-4947 VL - 14 SP - 109 EP - 115 PB - Akad.-Verl. CY - Berlin AN - OPUS4-2458 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Österle, Werner ED - Hornbogen, E. ED - Jost, N. T1 - Microstructure strength relationship of low carbon martensite T2 - 1st European Conference on Martensitic Transformation in Science and Technology CY - Bochum, Germany DA - 1989-01-01 PY - 1989 SN - 3-88355-153-8 SP - 465 EP - 472 PB - DGM Informationsges. CY - Oberursel AN - OPUS4-2457 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Österle, Werner A1 - Cho, C.-C. T1 - The role of grain size and ferrite substructure in respect to mechanical properties of an HSLA steel N2 - Several heat treatments were applied to an HSLA steel on type StE460 (German standard) to produce four ferrite substructures of different strength and at least two different grain sizes respectively. Whereas the ferrite substructure has a strong influence on yield strength the effect of grain size was negligible though probably to some extent masked by different pearlite volume fractions. The different strength levels could be explained by regarding the arrangement of dislocations and vanadium carbonitride particles and their mutual interaction. Increasing both grain size and pearlite volume fraction leads to a remarkable shift of transition temperature T sub 27J which was further enhanced by increasing ferrite strength. 16 ref.--AA PY - 1986 SN - 0177-4832 VL - 57 IS - 7 SP - 340 EP - 343 PB - Verl. Stahleisen CY - Düsseldorf AN - OPUS4-2452 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Österle, Werner A1 - Gesatzke, Wolfgang ED - Hansen, N. T1 - Investigation of the recovery process during long-term annealing of a 2.25Cr-1Mo steel T2 - 7th Risø International Symposium on Metallurgy and Materials Science ; 7th Risø International Symposium on Annealing Processes - Recovery, Recrystallization and Grain Growth CY - Roskilde, Denmark DA - 1986-09-08 PY - 1986 SN - 87-550-1250-7 VL - 7 SP - 481 EP - 485 PB - Risø National Laboratory CY - Roskilde, Denmark AN - OPUS4-2453 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Österle, Werner ED - Brakman, C. T1 - Influence of temperature and impurity content on the development of texture and microstructure of cold-rolled iron T2 - 7th International Conference on Textures of Materials (ICOTOM) CY - Noordwijkerhout, Netherlands DA - 1984-09-17 PY - 1984 VL - 7 SP - 123 EP - 128 PB - Netherlands Society for Materials CY - Zwijndrecht AN - OPUS4-2393 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Österle, Werner A1 - Wever, H. A1 - Bunge, H. T1 - Development of microstructure and texture of cold-rolled a iron N2 - Optical and electron metallography have been used to investigate the development of different microstructures in Armco Fe after rolling reductions between 0 and 90%. Simultaneously, the orientation distribution functions have been calculated from pole figures obtained by X-ray diffraction. Different stages of texture development could be assigned to typical microstructures. Strain inhomogeneities, such as microbands and shear bands, caused some broadening of the texture and a slight deviation of one skeleton line from the predicted fibre texture component. The decomposition of orientations near {111} < 121 > , and the strengthening of {211} < 011 > after high rolling reductions, was not due to mechanical twinning but could rather be explained by assuming {211} < 111 > slip. 30 ref.--AA PY - 1983 DO - https://doi.org/10.1179/030634583790420772 SN - 0306-3453 SN - 0026-0673 VL - 17 SP - 333 EP - 340 PB - Metals Society CY - London AN - OPUS4-2389 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Österle, Werner A1 - Gesatzke, Wolfgang ED - Bilde-Sørensen, J. T1 - Dislocation-particle interaction during secondary hardening and yielding of HSLA steel T2 - 4th International Symposium on Metallurgy and Materials Science ; 4th International Symposium on Deformation of Multi-phase and Particle Containing Materials CY - Risø, Denmark DA - 1983-09-05 PY - 1983 SN - 87-550-0946-8 VL - 4 SP - 473 EP - 478 PB - Risø National Laboratory CY - Roskilde AN - OPUS4-2391 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Österle, Werner A1 - Gesatzke, W. T1 - Dislocation particle interaction during secondary hardening and yielding of HSLA steel T2 - Riso International Symposium on Metallurgy and Material Science CY - Roskilde, Denmark DA - 05.09.1983 PY - 1983 SP - 473 EP - 478 AN - OPUS4-36051 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Österle, Werner A1 - Wever, H. A1 - Bunge, H. T1 - Development of microstructure and texture of cold rolling α iron PY - 1983 SN - 0026-0681 IS - 17 SP - 333 EP - 340 PB - Maney Publ. CY - London, UK AN - OPUS4-36056 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -