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 - Fatigue '96 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 T2 - Mechanisms and mechanics of damage and failure (2) 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 - Micro-system technologies '96 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 - Electron microscopy 96 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 - Stainless steels '96 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 - Fatigue '96 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 - Fatigue '96 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 -