期刊
SCRIPTA MATERIALIA
卷 56, 期 1, 页码 69-72出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.scriptamat.2006.08.054
关键词
friction stir welding; aluminum alloy; property; fracture
Al-Mg-Si alloy plates friction stir welded at a tool traverse speed of 400 mm/min exhibited higher tensile strength with 45 degrees shear fracture, whereas lower tensile strengths with nearly vertical fractures were observed for samples welded at a lower speed of 100 mm/min. The fracture paths corresponded well with the lowest hardness distribution profiles in the joints. The heat indexes cannot be used as parameters to evaluate the thermal input, mechanical properties and fracture mode. (c) 2006 Published by Elsevier Ltd. on behalf of Acta Materialia Inc.
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