Journal
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY
Volume 266, Issue -, Pages 421-428Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jmatprotec.2018.11.022
Keywords
Welding; Solidification cracking; Aluminum alloys; Filler metals; Weldability test
Funding
- National Science Foundation [DMR 1500367]
- Ministry of National Education of Republic of Turkey
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The effectiveness of filler metals in reducing solidification cracking in welds of 2024 Al and 6061 Al was examined, these two Al alloys being highly susceptible to solidification cracking. The effectiveness was evaluated by the transverse motion weldability (TMW) test. 2024 Al was welded with filler metals 2319 Al, 4043 Al and 4145 Al. 4043 Al and 4145 Al both reduced cracking effectively, but 4145 Al was significantly better. 6061 Al was welded with filler metals 4043 Al and 4943 Al (a new alloy designed to increase the weld strength of the 6000-series alloys), and the effectiveness was similar. Micrographs and curves of temperature T vs. fraction solid f(s) of the weld metals were used to help explain the test results.
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