Effect of Rotation Rate on Microstructure and Mechanical Properties of Friction Stir Processed Ni-Fe-Based Superalloy

doi:10.1007/s40195-021-01240-2

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	Effect of Rotation Rate on Microstructure and Mechanical Properties of Friction Stir Processed Ni-Fe-Based Superalloy
	Wang, Miao 1,2; Huang, Xing-Wei 3,4; Xue, Peng 3; Cui, Chuan-Yong 2; Zhang, Qing-Chuan 1
刊名	ACTA METALLURGICA SINICA-ENGLISH LETTERS
	2021-06-02
页码	14
关键词	Superalloy Friction stir processing Grain refinement Processing parameter
ISSN号	1006-7191
DOI	10.1007/s40195-021-01240-2
通讯作者	Cui, Chuan-Yong(chycui@imr.ac.cn) ; Zhang, Qing-Chuan(zhangqc@ustc.edu.cn)
英文摘要	In this work, friction stir processing (FSP) was applied to the high-strength and high-melting-point Ni-Fe-based superalloy (HT700) for the first time with negligible wear of the stir tool. Different rotation rates were chosen to investigate the effect of heat input on microstructure and tensile properties at different temperatures of friction stir processed Ni-Fe-based superalloy. The results showed that with increasing rotation rate, the percentage of high-angle grain boundaries and twin boundaries gradually decreased whereas the grain size initially increased and then remained almost constant; the difference in tensile properties of FSP samples with rotation rates of 500-700 rpm was small attributing to their similar grain size, but the maximum strength was achieved in the FSP sample with a rotation rate of 400 rpm and traverse speed of 50 mm/min due to its finest grain size. More importantly, we found that the yield strength of all FSP samples tensioned at 700 degrees C was enhanced clearly resulting from the reprecipitation of gamma ' phase. In addition, the grain refinement mechanism of HT700 alloy during FSP was proved to be continuous dynamic recrystallization and the specific refinement process was given.
资助项目	National Natural Science Foundation of China[11872354] ; National Natural Science Foundation of China[11627803] ; National Key R&D Program of China[2019YFA0705304] ; National Key R&D Program of China[2017YFA0700703] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB22040502]
WOS研究方向	Metallurgy & Metallurgical Engineering
语种	英语
出版者	CHINESE ACAD SCIENCES, INST METAL RESEARCH
WOS记录号	WOS:000657211800002
资助机构	National Natural Science Foundation of China ; National Key R&D Program of China ; Strategic Priority Research Program of the Chinese Academy of Sciences
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/160274]
专题	金属研究所_中国科学院金属研究所
通讯作者	Cui, Chuan-Yong; Zhang, Qing-Chuan
作者单位	1.Univ Sci & Technol China, CAS Key Lab Mech Behav & Design Mat, Hefei 230027, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Superalloy Div, Shenyang 110016, Peoples R China 3.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Peoples R China 4.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230027, Peoples R China
推荐引用方式 GB/T 7714	Wang, Miao,Huang, Xing-Wei,Xue, Peng,et al. Effect of Rotation Rate on Microstructure and Mechanical Properties of Friction Stir Processed Ni-Fe-Based Superalloy[J]. ACTA METALLURGICA SINICA-ENGLISH LETTERS,2021:14.
APA	Wang, Miao,Huang, Xing-Wei,Xue, Peng,Cui, Chuan-Yong,&Zhang, Qing-Chuan.(2021).Effect of Rotation Rate on Microstructure and Mechanical Properties of Friction Stir Processed Ni-Fe-Based Superalloy.ACTA METALLURGICA SINICA-ENGLISH LETTERS,14.
MLA	Wang, Miao,et al."Effect of Rotation Rate on Microstructure and Mechanical Properties of Friction Stir Processed Ni-Fe-Based Superalloy".ACTA METALLURGICA SINICA-ENGLISH LETTERS (2021):14.