effect of prior deformation on welding microstructure of steel 304l
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ID: 177710
2017
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Abstract
This subject was raised by an automotive company.Based on the welding design on the curved surface,the effect of prior deformation on the weld structure was studied.Metal active-gas welding was used on the T-joint and pre-deformed plates of austenitic stainless steel 304L to find the proper welding parameters and observe the effect of prior deformation on the microstructure.The proper parameters acquired are:the speed of the torch is 4mm/s,the speed of delivery of welding wire is 2.5m/min and the voltage is 17V.In the T-joint and pre-deformed joint,the weld toes are in the zone with strain of 0% and 30%.In the pre-deformed welding specimen,it was observed that the fusion zone and partially melted zone are narrowed,carbide precipitation and ferrites are found less.In all,the microstructure in the pre-deformed weld joints on 304L is more uniform.
| Reference Key |
luo-fei2017journaleffect
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|---|---|
| Authors | ;WU Luo-fei;CHENG Qiang;LI Zhu-guo |
| Journal | adsorption science and technology |
| Year | 2017 |
| DOI |
10.11868/j.issn.1001-4381.2015.000051
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