李晓泉:The microscopic mechanical performance for nonuniform welded joint of nickel-based alloy with nanoindentation论文

李晓泉:The microscopic mechanical performance for nonuniform welded joint of nickel-based alloy with nanoindentation论文

本文主要研究内容

作者李晓泉,郝本行,陈一鑫,云叶菱,杨宗辉(2019)在《The microscopic mechanical performance for nonuniform welded joint of nickel-based alloy with nanoindentation》一文中研究指出:To quantify the nonuniform micromechanical performance of welded joint,the load-displacement curves by nanoindentation test were introduced to examine different zones including base metal,coarse grained heat affected zone,partially melted zone,weld metal near the fusion boundary and weld metal center.The results showed that the strengthening effect of weld metal was more obvious than that of heat affected zone for nickel based welded joint and especially in coarse grained heat affected zone,the hardening resulted from overheating was not apparent.Nickel based weld metal with high content of alloying elements which were often segregated at interdendritic regions or precipitated in grain interior under nonequilibrium solidification contributed to the characteristics that differ from conventional low alloy steel welded joint.

Abstract

To quantify the nonuniform micromechanical performance of welded joint,the load-displacement curves by nanoindentation test were introduced to examine different zones including base metal,coarse grained heat affected zone,partially melted zone,weld metal near the fusion boundary and weld metal center.The results showed that the strengthening effect of weld metal was more obvious than that of heat affected zone for nickel based welded joint and especially in coarse grained heat affected zone,the hardening resulted from overheating was not apparent.Nickel based weld metal with high content of alloying elements which were often segregated at interdendritic regions or precipitated in grain interior under nonequilibrium solidification contributed to the characteristics that differ from conventional low alloy steel welded joint.

论文参考文献

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  • 论文详细介绍

    论文作者分别是来自China Welding的李晓泉,郝本行,陈一鑫,云叶菱,杨宗辉,发表于刊物China Welding2019年02期论文,是一篇关于,China Welding2019年02期论文的文章。本文可供学术参考使用,各位学者可以免费参考阅读下载,文章观点不代表本站观点,资料来自China Welding2019年02期论文网站,若本站收录的文献无意侵犯了您的著作版权,请联系我们删除。

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    李晓泉:The microscopic mechanical performance for nonuniform welded joint of nickel-based alloy with nanoindentation论文
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