A Newly Developed Wrought Ni-Fe-Cr-based Superalloy for Advanced Ultra-Supercritical Power Plant Applications Beyond 700 degrees C

IMR OpenIR

	A Newly Developed Wrought Ni-Fe-Cr-based Superalloy for Advanced Ultra-Supercritical Power Plant Applications Beyond 700 degrees C
	Guan, Shuai; Cui, Chuan-Yong; chycui@imr.ac.cn
	2015
发表期刊	ACTA METALLURGICA SINICA-ENGLISH LETTERS
ISSN	1006-7191
卷号	28 期号:9 页码:1083-1088
摘要	Some existing wrought Ni-Cr-Co-based superalloys are being evaluated as the candidate materials for advanced ultra-supercritical power plant applications beyond 700 degrees C due to their high creep strength. But they are all prohibitively expensive due to the addition of Co, Mo and W. Here we developed a new Ni-Fe-Cr-based superalloy (named as HT700 alloy) with low cost and high strength. This paper reports the mechanical properties and fracture modes of HT700 alloy to support its high temperature applications and to understand prospective failure mechanism. Fracto-graphic examinations indicate that the fracture modes shift with test condition change. In addition, the HT700 alloy has relatively stable microstructure at 750 degrees C. Compared with IN740 and GH2984 alloys, this new alloy has higher yield strength in the temperature range from room temperature to 800 degrees C. The creep life of this new alloy is much longer than that of the Ni-Fe-based superalloy GH2984. The results suggest that this new alloy is a promising material for advanced ultra-supercritical power plant applications beyond 700 degrees C.
部门归属	[guan, shuai ; cui, chuan-yong] chinese acad sci, inst met res, shenyang 110016, peoples r china
关键词	Wrought Ni-fe-cr-based Superalloy Low Cost High Strength Fracture Mode
资助者	High Technology Research and Development Program of China [2014AA041701]; National Natural Science Foundation of China [51171179, 51271174, 51331005, 11332010]
收录类别	sci
语种	英语
WOS记录号	WOS:000364110500001
引用统计	被引频次：19[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/74594
专题	中国科学院金属研究所
通讯作者	chycui@imr.ac.cn
推荐引用方式 GB/T 7714	Guan, Shuai,Cui, Chuan-Yong,chycui@imr.ac.cn. A Newly Developed Wrought Ni-Fe-Cr-based Superalloy for Advanced Ultra-Supercritical Power Plant Applications Beyond 700 degrees C[J]. ACTA METALLURGICA SINICA-ENGLISH LETTERS,2015,28(9):1083-1088.
APA	Guan, Shuai,Cui, Chuan-Yong,&chycui@imr.ac.cn.(2015).A Newly Developed Wrought Ni-Fe-Cr-based Superalloy for Advanced Ultra-Supercritical Power Plant Applications Beyond 700 degrees C.ACTA METALLURGICA SINICA-ENGLISH LETTERS,28(9),1083-1088.
MLA	Guan, Shuai,et al."A Newly Developed Wrought Ni-Fe-Cr-based Superalloy for Advanced Ultra-Supercritical Power Plant Applications Beyond 700 degrees C".ACTA METALLURGICA SINICA-ENGLISH LETTERS 28.9(2015):1083-1088.