Tensile and Fracture Behavior of DZ68 Ni-base Superalloy

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	Tensile and Fracture Behavior of DZ68 Ni-base Superalloy
	E. Z. Liu; S. C. Sun; G. F. Tu; Z. Zheng; X. R. Guan; L. F. Zhang
	2009
发表期刊	Journal of Materials Science & Technology
ISSN	1005-0302
卷号	25 期号:6 页码:727-730
摘要	The tensile and fracture behavior of DZ68 directionally solidified Ni-base superalloy was studied in the temperature range of room temperature (RT) to 1000 degrees C. The fracture mode was examined by scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The results show the tensile strength and yield strength of DZ68 alloy increase slightly with increasing temperature, so that at 760 degrees C its reach maxima value: 1214 and 1019 MPa, respectively. When the experimental temperature is higher than 760 degrees C, the tensile and yield strengths decrease evidently and the ductility increases remarkably. The fractograph of fracture surface for the tensile specimen at room temperature shows a dimple-ductile fracture mode. The fractograph from 760 to 850 degrees C shows a slide fracture mode. The fractograph from 900 to 1000 degrees C exhibits a creep rupture mode with uneven deformation.
部门归属	[liu, enze; sun, shuchen; tu, ganfeng; guan, xiurong] northeastern univ, sch met & mat, shenyang 110004, peoples r china. [liu, enze; zheng, zhi; guan, xiurong] chinese acad sci, inst met res, shenyang 110016, peoples r china. [zhang, lingfeng] avic xian aeroengine grp ltd, xian 710021, peoples r china.;liu, ez (reprint author), northeastern univ, sch met & mat, shenyang 110004, peoples r china;nzliu@imr.ac.cn
关键词	Ni-base Superalloy Tensile Strength Yield Strength Fractograph High-volume Fraction Temperature-dependence Yield Stress Alloys Deformation Gamma' Ni3al
URL	查看原文
WOS记录号	WOS:000272784100002
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/321006/32074
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	E. Z. Liu,S. C. Sun,G. F. Tu,et al. Tensile and Fracture Behavior of DZ68 Ni-base Superalloy[J]. Journal of Materials Science & Technology,2009,25(6):727-730.
APA	E. Z. Liu,S. C. Sun,G. F. Tu,Z. Zheng,X. R. Guan,&L. F. Zhang.(2009).Tensile and Fracture Behavior of DZ68 Ni-base Superalloy.Journal of Materials Science & Technology,25(6),727-730.
MLA	E. Z. Liu,et al."Tensile and Fracture Behavior of DZ68 Ni-base Superalloy".Journal of Materials Science & Technology 25.6(2009):727-730.