Low ductility at intermediate temperature of Ni-base superalloy M963

doi:10.1016/j.msea.2004.03.057

IMR OpenIR

	Low ductility at intermediate temperature of Ni-base superalloy M963
	He, LZ; Zheng, Q; Sun, XF; Hou, GC; Guan, HR; Hu, ZQ
通讯作者	He, LZ(cybhlz@163.net)
	2004-08-25
发表期刊	MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
ISSN	0921-5093
卷号	380 期号:1-2 页码:340-348
摘要	Tensile behavior of a cast Ni-base superalloy M963 under solution treatment and age treatment was studied in the temperature range from 20 to 1100degreesC. Extensive TEM investigations were performed after tensile test to fracture. Furthermore, the fracture surfaces were studied in the SEM. The yield and tensile strengths under the two conditions initially increase with temperature and reach a peak at around 800degreesC. Beyond this temperature, a sharp decrease of both yield and tensile strengths was observed. A ductility minimum was observed at 800degreesC under solution treatment and disappeared under age treatment. With the increment of temperature, the following sequence of deformed substructure features was observed: dislocation pairs --> connected slip bands within matrix channel under solution treatment and homogeneous interface dislocations under age treatment --> homogeneous dislocation network within matrix channel. The fracture surface observation indicated that localized slip which leading to glide plane decohesion caused the poor ductility of M963 alloy. (C) 2004 Published by Elsevier B.V.
关键词	M963 alloy heat treatment strength ductility microstructure
DOI	10.1016/j.msea.2004.03.057
收录类别	SCI
语种	英语
WOS研究方向	Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000223330200038
出版者	ELSEVIER SCIENCE SA
引用统计	被引频次：60[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/321006/119404
专题	中国科学院金属研究所
通讯作者	He, LZ
作者单位	Chinese Acad Sci, Inst Mat Res, Dept Superalloys, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	He, LZ,Zheng, Q,Sun, XF,et al. Low ductility at intermediate temperature of Ni-base superalloy M963[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2004,380(1-2):340-348.
APA	He, LZ,Zheng, Q,Sun, XF,Hou, GC,Guan, HR,&Hu, ZQ.(2004).Low ductility at intermediate temperature of Ni-base superalloy M963.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,380(1-2),340-348.
MLA	He, LZ,et al."Low ductility at intermediate temperature of Ni-base superalloy M963".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 380.1-2(2004):340-348.