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题名:
Influence of simulated heat-affected zone thermal cycle treatment on mechanical performances and microstructural stability of Ni-17Mo-7Cr based superalloy
作者: He, YM; Yang, JG; Chen, SJ; Gao, ZL
刊名: VACUUM
出版日期: 2016
卷号: 125, 期号:-, 页码:26—35
关键词: NI-21CR-17MO ALLOY ; GRAIN-BOUNDARY ; HASTELLOY-N ; PRECIPITATION ; TEMPERATURE ; RESISTANCE ; BEHAVIORS ; CARBIDE
DOI: 10.1016/j.vacuum.2015.11.025
通讯作者: Yang, JG (reprint author), Zhejiang Univ Technol, Inst Proc Equipment & Control Engn, Hangzhou 310014, Zhejiang, Peoples R China.
文章类型: 期刊文献
英文摘要: 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.
收录类别: SCI
语种: 英语
WOS记录号: WOS:000370096500005
ISSN号: 0042-207X
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.sinap.ac.cn/handle/331007/25755
Appears in Collections:中科院上海应用物理研究所2011-2017年_期刊论文

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Recommended Citation:
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,2016-01-01,125(-):26—35.
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