TY - JOUR A1 - Ben-Hamu, G. A1 - Eliezer, D. A1 - Cross, Carl Edward A1 - Böllinghaus, Thomas T1 - The relation between microstructure and corrosion behavior of GTA welded AZ31B magnesium sheet N2 - Welding of AZ31B magnesium alloy was carried out using gas-tungsten arc (GTA) welding. The microstructure and the corrosion behavior of welded magnesium AZ31B alloy were investigated. ac and dc polarization tests were carried out on the welded Mg sheet. The microstructure was examined using optical and electron microscopy (TEM and SEM), X-ray analysis and EDS. Scanning Kelvin probe force microscopy (SKPFM) was used in order to measure the Volta potential of different phases relative to the matrix. The results showed that the GTA process effected both the microstructure and the corrosion behavior. These results can be explained by the effects of the process on microstructure of AZ31B Mg alloy sheet such as grain size and precipitates caused by the change in precipitation and recrystallization behavior. KW - AZ31B KW - GTA weld KW - Microstructure KW - Corrosion behavior KW - SKPFM KW - Intermetallics PY - 2007 U6 - https://doi.org/10.1016/j.msea.2006.12.122 SN - 0921-5093 SN - 1873-4936 VL - 452/453 SP - 210 EP - 218 PB - Elsevier CY - Amsterdam AN - OPUS4-15459 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Ben-Hamu, G. A1 - Eliezer, D. A1 - Cross, Carl Edward A1 - Böllinghaus, Thomas T1 - Volta potential of second phase particles in TIG welded AZ31 magnesium sheet T2 - EUROCORR 2006 CY - Maastricht, The Netherlands DA - 2006-09-25 KW - TIG welding KW - AZ31 Magnesium Alloy KW - Corrosion behavior PY - 2006 N1 - Serientitel: EFC-Event – Series title: EFC-Event IS - 280 SP - 1 EP - 10 PB - European Federation of Corrosion CY - Maastricht AN - OPUS4-22134 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Ben-Hamu, G. A1 - Eliezer, Dan A1 - Cross, Carl Edward A1 - Böllinghaus, Thomas T1 - Microstructure and Corrosion Resistance of TIG Welded AZ31B Magnesium Sheet T2 - 2nd International Conference on Magnesium CY - Beijing, China DA - 2006-06-25 KW - AZ31B KW - TIG welded KW - Microstructure KW - Corrosion behavior PY - 2006 VL - 2 IS - A-044 SP - 1 EP - 8 CY - Beijing AN - OPUS4-14486 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Böllinghaus, Thomas A1 - Kannengießer, Thomas A1 - Neuhaus, Mathias A1 - Florian, Wolfgang T1 - Analysis of Residual Stress Distribution in Welded Joints Depending on the Restraint Intensity T2 - Euromat 2003 CY - Lausanne, Switzerland DA - 2003-09-01 PY - 2003 AN - OPUS4-2905 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Böllinghaus, Thomas A1 - Kannengießer, Thomas A1 - Neuhaus, Mathias T1 - Effects of the Structural Restraint Intensity on the Stress Strain Build up in Butt Joints T2 - 7th International Seminar: Numerical Analysis of Weldability CY - Graz, Austria DA - 2003-09-29 PY - 2003 AN - OPUS4-2906 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Böllinghaus, Thomas A1 - Müller, Christina A1 - Gaal, Mate T1 - Reliability Tests for Demining T2 - BAM-DLR Visit to GICHD CY - Geneva, Switzerland DA - 2004-02-05 PY - 2004 AN - OPUS4-5589 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Böllinghaus, Thomas ED - Richard, H. A. T1 - Sicherheit von Schweißverbindungen gegen wasserstoffunterstützte Rissbildung T2 - 32. Tagung des DVM-Arbeitskreises Bruchvorgänge CY - Berlin, Deutschland DA - 2000-02-22 PY - 2000 SN - 0943-3473 SP - 173 EP - 182 PB - DVM CY - Berlin AN - OPUS4-11843 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Böllinghaus, Thomas ED - Cerjak, H. T1 - Modelling of Hydrogen Diffusion and Cracking in Steel Welds N2 - Hydrogen assisted steel corrosion and cold cracking is still a major topic regarding the reliability of welded steel components, such as offshore platforms and pipelines. Measurement of local and crack critical hydrogen concentrations in a specific weld is difficult and not very precise. Numerical simulations of hydrogen uptake and diffusion developed within the last twenty years have to be regarded as much more effective to determine local hydrogen concentrations in crack critical regions of welds. As an overview of existing theories of the state of the art in modelling of hydrogen cracking in steels, the present contribution shows that the development of a comprehensive numerical model for both types of hydrogen assisted cracking in welds, hydrogen assisted stress corrosion cracking and cold cracking, is still a major research task. As a first step towards that direction, a basic procedure for numerical simulation of crack initiation and propagation has been developed and experimentally verified. The approach can be extended to a comprehensive quantitative model for life time prediction and risk based inspection of welded steel components. (Steel specimen used was S355 along with other materials such as AISI 321, Incoloy 800, Inconel 690 and 600.) T2 - Fifth International Seminar on the 'Numerical Analysis of Weldability' CY - Graz, Austria DA - 1999-09-01 PY - 2000 SN - 1-86125-115-7 N1 - Serientitel: Book / The Institute of Materials – Series title: Book / The Institute of Materials IS - 738 SP - 1019 EP - 1059 PB - IOM Communications CY - London AN - OPUS4-11841 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Böllinghaus, Thomas A1 - Mente, Tobias T1 - Vermeidung von Rissen beim Schweißen von Rohrleitungen T2 - DVM-Tag 2011 "Bauteilzuverlässigkeit - Schäden und ihre Vermeidung" CY - Berlin, Germany DA - 2012-05-04 PY - 2012 AN - OPUS4-26033 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Böllinghaus, Thomas A1 - Mente, Tobias T1 - Trends in investigating hydrogen cracking and diffusion in steel welds N2 - ♦ Elongation of the Service life of existent components ♦ Inovative light weight design ♦ Higher strength of the applied materials ♦ Increasingly aggressive environments T2 - 64th IIW Annual assembly and international conference CY - Chennai, India DA - 17.07.2011 PY - 2011 AN - OPUS4-24349 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -