典型文献
Microstructure and mechanical properties of 2219 aluminum alloy VPTIG welds during cyclic thermal treatment
文献摘要：
In this study,the effect of the cyclic thermal treatment(CTT)on the microstructure and mechanical properties of the 2219 Al alloy welds fabricated using variable polarity tungsten inert gas(VPTIG)arc welding method were investigated by optical microscope(OM),transmission electron microscope(TEM),and low-tem-perature tensile tests,with emphasis on precipitation evo-lution and property variation in different areas of the joint.Measurement of the microhardness profile across the weld reveals that there are maximum and minimum hardness values in the heat-affected zone(HAZ)adjacent to the fusion boundary(FB).It is found that the maximum hardness value increases with the temperature cycles of the cyclic thermal treatment due to the formation of Guinier-Preston(GP)zones,while the microhardness at other positions remains unchanged.Experimental results show that the CCT results in an increase in the yield strength,but a decrease in the ductility of the weld joint.
文献关键词：
中图分类号：
作者姓名：
Di-Yao Su;Hui-Jin Jin;Su-Jun Wu
作者机构：
School of Materials Science and Engineering,Beihang University,Beijing 100191,China
文献出处：
引用格式：
[1]Di-Yao Su;Hui-Jin Jin;Su-Jun Wu-.Microstructure and mechanical properties of 2219 aluminum alloy VPTIG welds during cyclic thermal treatment)[J].稀有金属（英文版）,2022(10):3539-3545
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AB值：
0.638982
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