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题名:
Effect of rotation speed on nugget structure and property of high rotation speed friction stir welded Al-Mn aluminum alloy
作者: Zhang HJ(张会杰); Wang M(王敏); Qi RL(祁若龙); Zhu Z(朱智); Zhang X(张骁); Yu T(于涛); Wu ZQ(吴振强)
作者部门: 空间自动化技术研究室
通讯作者: 祁若龙
关键词: High rotation speed friction stir welding ; Rotation speed ; Weld nugget ; Structure ; Property
刊名: International Journal of Advanced Manufacturing Technology
ISSN号: 0268-3768
出版日期: 2017
页码: 1-10
收录类别: EI
产权排序: 1
项目资助者: National Natural Science Foundation of China (Grant No. 51505471) and Innovation Fund from Youth Innovation Promotion Association, Chinese Academy of Sciences (Grant No. 2015162).
摘要: High rotation speed friction stir welding is a promising low-force welding technique that enables the application of friction stir welding on in situ fabrication and repair. High rotation speed friction stir welding experiments (above 3000 rpm) were conducted on an Al-Mn aluminum alloy. The effect of rotation speed on nugget structure and property was investigated in order to illuminate the process features. The results indicate that a notable increase of nugget size occurs at high rotation speeds of 5000–8000 rpm. With increasing rotation speed, the thermal effect is firstly strengthened and then achieves a steady state. The microstructure evolution is more sensitive to welding temperature as rotation speed varies, and thus, the evolution trends of nugget structure morphology (grain size and substructure distribution density) with rotation speed resemble that of welding temperature. Increasing rotation speed above 4000 rpm effectively improves the nugget hardness due to the enhancement of strain hardening.
语种: 英语
EI收录号: 20171403527853
内容类型: 期刊论文
URI标识: http://ir.sia.cn/handle/173321/20301
Appears in Collections:空间自动化技术研究室_期刊论文

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Recommended Citation:
Zhang HJ,Wang M,Qi RL,et al. Effect of rotation speed on nugget structure and property of high rotation speed friction stir welded Al-Mn aluminum alloy[J]. International Journal of Advanced Manufacturing Technology,2017:1-10.
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