Influence of High-Temperature Aging Time on Microstructure and Stress Rupture Property of Directionally Solidified DZ951 Ni-Based Superalloys

IMR OpenIR

	Influence of High-Temperature Aging Time on Microstructure and Stress Rupture Property of Directionally Solidified DZ951 Ni-Based Superalloys
	Xia Pengcheng 1,2; Yu Jinjiang 2; Sun Xiaofeng 2; Guan Hengrong 2; Hu Zhuangqi 2
通讯作者	Xia Pengcheng(xpc328@126.com)
	2010
发表期刊	RARE METAL MATERIALS AND ENGINEERING
ISSN	1002-185X
卷号	39 期号:1 页码:69-71
摘要	Influence of high-temperature aging time on microstructure and stress rupture property of DZ951 superalloys was investigated by optical microscopy (OM) and scanning electronic microscopy (SEM). The results reveal that carbide changes from skeleton-like of as-cast alloy to block-like and discontinuously distributes in grain boundary when the alloy is aged at 1130 degrees C. gamma' cubicity decreases and the size of gamma' phase increases with the elongation of holding time at 1130 degrees C. gamma' coarsens and rafts when the holding time is 6 h. For solid solution of some gamma', fine and spherical gamma' phase precipitates during the following cooling process after 1130 degrees C aging treatment. The volume fraction of fine gamma' phase increases with prolonging the holding time. The stress rupture life of DZ951 alloy at 1100 degrees C/60 MPa reduces and the elongation increases with the prolongation of holding time. Coarsening and rafting of gamma' is deleterious to the stress rupture life for alloys.
关键词	superalloy high-temperature aging microstructure stress rupture property
收录类别	SCI
语种	英语
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000276258200015
出版者	NORTHWEST INST NONFERROUS METAL RESEARCH
引用统计	被引频次：4[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/321006/101907
专题	中国科学院金属研究所
通讯作者	Xia Pengcheng
作者单位	1.Shandong Univ Sci & Technol, Sch Mat Sci & Engn, Qingdao 266510, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Xia Pengcheng,Yu Jinjiang,Sun Xiaofeng,et al. Influence of High-Temperature Aging Time on Microstructure and Stress Rupture Property of Directionally Solidified DZ951 Ni-Based Superalloys[J]. RARE METAL MATERIALS AND ENGINEERING,2010,39(1):69-71.
APA	Xia Pengcheng,Yu Jinjiang,Sun Xiaofeng,Guan Hengrong,&Hu Zhuangqi.(2010).Influence of High-Temperature Aging Time on Microstructure and Stress Rupture Property of Directionally Solidified DZ951 Ni-Based Superalloys.RARE METAL MATERIALS AND ENGINEERING,39(1),69-71.
MLA	Xia Pengcheng,et al."Influence of High-Temperature Aging Time on Microstructure and Stress Rupture Property of Directionally Solidified DZ951 Ni-Based Superalloys".RARE METAL MATERIALS AND ENGINEERING 39.1(2010):69-71.