TY - JOUR A1 - Coniglio, Nicolas A1 - Cross, Carl Edward A1 - Michael, Thomas A1 - Lammers, Marco T1 - Defining a critical weld dilution to avoid solidification cracking in aluminum JF - Welding journal N2 - Al-Mg-Si alloys are known to be highly susceptible to solidification cracking except when using an appropriate filler metal (e.g., 4343 or 5356), although the amount of dilution required to avoid cracking has never been a well-defined quantity. The aim of the present study is to determine a relationship between filler metal dilution, local strain rate conditions, and cracking susceptibility. Making use of the controlled tensile weldability (CTW) test and local strain extensometer measurements, a boundary has been established between crack and non-crack conditions for different local strain rates and dilution amounts, holding all other welding parameters constant. This boundary, presented in the form of critical strain rate-dilution map, defines the critical amount of 4043 filler metal required to avoid solidification cracking when arc welding 6060 aluminium, depending upon local strain rate. T2 - Light Alloy Seminar CY - Clausthal, Germany DA - 2006-11-20 KW - Dilution KW - Solidification Cracking KW - Al-Mg-Si Alloys KW - 6060 Aluminium KW - Arc Welding KW - Strain Rate KW - 4043 Filler Dilution PY - 2008 SN - 0043-2296 SN - 0096-7629 VL - 87 IS - 8 SP - 237 EP - 247 PB - American Welding Society CY - New York, NY AN - OPUS4-18311 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -