Influence of heat treatment on the microstructure and stress rupture property of DZ951 alloy

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	Influence of heat treatment on the microstructure and stress rupture property of DZ951 alloy
	P. C. Xia; J. J. Yu; X. F. Sun; H. R. Guan; Z. Q. Hu
	2007
发表期刊	Journal of Materials Processing Technology
ISSN	0924-0136
卷号	186 期号:1-3 页码:315-322
摘要	Influence of different heat treatments on microstructure and stress rupture property of DZ951 alloy was investigated. The results show that the shape of carbide changes from script-like of as-cast alloy to blocky during heat treatment, which can prevent microcrack initiation and propagation at or near carbides. The stress rupture life of DZ951 alloy at 1100 degrees C/60 Wa increases with the rise of solution temperature until 1240 degrees C then it begins to decrease. The size of cuboidal gamma' phase and the volume of spherical gamma' phase increase with the rise of aging temperature. Bimodal gamma' phase is achieved at higher aging temperature. Better stress rupture property for DZ951 alloy may be obtained by reasonable combination of the size and volume fraction of cuboidal and spherical gamma' phase. The fractographs of DZ951 alloy at different conditions show a ductile fracture mode. (c) 2007 Elsevier B.V. All fights reserved.
部门归属	chinese acad sci, inst met res, dept superalloys, shenyang 110016, peoples r china. shanghai univ sci & technol, sch mat sci & engn, qingdao 266510, peoples r china.;xia, pc (reprint author), chinese acad sci, inst met res, dept superalloys, shenyang 110016, peoples r china;pcxia@imr.ac.cn
关键词	Dz951 Alloy Heat Treatment Microstructure Stress Rupture Property Base Superalloy Mechanical-properties Creep-properties Single-crystal Size
URL	查看原文
WOS记录号	WOS:000245478600043
引用统计	被引频次：9[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/321006/33934
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	P. C. Xia,J. J. Yu,X. F. Sun,et al. Influence of heat treatment on the microstructure and stress rupture property of DZ951 alloy[J]. Journal of Materials Processing Technology,2007,186(1-3):315-322.
APA	P. C. Xia,J. J. Yu,X. F. Sun,H. R. Guan,&Z. Q. Hu.(2007).Influence of heat treatment on the microstructure and stress rupture property of DZ951 alloy.Journal of Materials Processing Technology,186(1-3),315-322.
MLA	P. C. Xia,et al."Influence of heat treatment on the microstructure and stress rupture property of DZ951 alloy".Journal of Materials Processing Technology 186.1-3(2007):315-322.