Influence of simulated heat-affected zone thermal cycle treatment on mechanical performances and microstructural stability of Ni-17Mo-7Cr based superalloy

doi:10.1016/j.vacuum.2015.11.025

CAS OpenIR > 中科院上海应用物理研究所2011-2018年

	Influence of simulated heat-affected zone thermal cycle treatment on mechanical performances and microstructural stability of Ni-17Mo-7Cr based superalloy
	He, YM; Yang, JG; Chen, SJ; Gao, ZL; Yang, JG (reprint author), Zhejiang Univ Technol, Inst Proc Equipment & Control Engn, Hangzhou 310014, Zhejiang, Peoples R China.
	2016
发表期刊	VACUUM
ISSN	0042-207X
卷号	125 期号:-页码:26—35
文章类型	期刊文献
摘要	In the work, a Ni-17Mo-7Cr (wt.%) based superalloy was prepared, and its high-temperature (800 degrees C) mechanical properties and microstructural stability was evaluated when subjecting to the treatment of simulated heat-affected zone (HAZ) thermal cycle. The results reveal that a lamellar-like structure, which occurs in the alloy, is actually the mixture of Ni matrix and carbides (mainly MoC). When the peak temperature is elevated up to 1350 degrees C during the HAZ simulation, an equivalent excellent mechanical property is obtained relative to that of the alloy without treatment, due to formation of the typical structures in the alloy. After tensile tests, the hybrid fracture behavior appears on the fracture surfaces, in which the inter-granular fracture with torturous fracture surfaces in company with the ductile fracture are concurrently found. At last, the simulated microstructure can maintain its stability during the tests of isothermal stress relaxation. Based on the results of tensile tests and stress relaxation, we can infer that the simulated microstructure can preserve its excellent mechanical properties and stability at high temperatures. (C) 2015 Elsevier Ltd. All rights reserved.
关键词	Ni-21cr-17mo Alloy Grain-boundary Hastelloy-n Precipitation Temperature Resistance Behaviors Carbide
DOI	10.1016/j.vacuum.2015.11.025
收录类别	SCI
语种	英语
WOS记录号	WOS:000370096500005
引用统计	被引频次：1[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.sinap.ac.cn/handle/331007/25755
专题	中科院上海应用物理研究所2011-2018年
通讯作者	Yang, JG (reprint author), Zhejiang Univ Technol, Inst Proc Equipment & Control Engn, Hangzhou 310014, Zhejiang, Peoples R China.
推荐引用方式 GB/T 7714	He, YM,Yang, JG,Chen, SJ,et al. Influence of simulated heat-affected zone thermal cycle treatment on mechanical performances and microstructural stability of Ni-17Mo-7Cr based superalloy[J]. VACUUM,2016,125(-):26—35.
APA	He, YM,Yang, JG,Chen, SJ,Gao, ZL,&Yang, JG .(2016).Influence of simulated heat-affected zone thermal cycle treatment on mechanical performances and microstructural stability of Ni-17Mo-7Cr based superalloy.VACUUM,125(-),26—35.
MLA	He, YM,et al."Influence of simulated heat-affected zone thermal cycle treatment on mechanical performances and microstructural stability of Ni-17Mo-7Cr based superalloy".VACUUM 125.-(2016):26—35.

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