Effect of silicon on microstructure and stress rupture properties of a corrosion resistant Ni-based superalloy during long term thermal exposure

IMR OpenIR

	Effect of silicon on microstructure and stress rupture properties of a corrosion resistant Ni-based superalloy during long term thermal exposure
	Liu, T.; Dong, J. S.; Xie, G.; Wang, L.; Lou, L. H.; Dong, JS; Xie, G; Wang, L (reprint author), Chinese Acad Sci, Inst Met Res, Superalloys Div, Shenyang 110016, Peoples R China.; Wang, L (reprint author), Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Peoples R China.
	2016-02-22
发表期刊	MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
ISSN	0921-5093
卷号	656 页码:75-83
摘要	The influence of silicon on microstructure and stress rupture properties of GH3535 nickel-based superalloy during long term thermal exposure at 700 degrees C was investigated. After long term thermal exposure, the secondary carbides precipitated along grain boundaries. Si addition induced the formation of M12C carbides, while only M6C carbides were observed in Si free alloy. The secondary M12C carbides exhibited particular orientation relationship with matrix for the alloy with Si, but the secondary M6C carbides are incoherent with matrix for the Si free alloy. It is believed that the difference in the types of the secondary carbides was originated from Si. The stress rupture life decreased after 1000 h thermal exposure for the Si free alloy, but no noticeable changes could be detected for the alloy with Si. The interface between the secondary M6C carbides and matrix became the main site for crack initiation after 1000 h thermal exposure for the Si free alloy. But no cracks was detected at the interface between the secondary M12C carbides and matrix even after 10,000 h thermal exposure, which may be related to the strong interfacial cohesive force between secondary carbides and matrix. (C) 2016 Published by Elsevier B.V.
部门归属	[liu, t.] jiangsu univ technol, sch mat sci & engn, changzhou 213001, peoples r china ; [liu, t. ; dong, j. s. ; xie, g. ; wang, l. ; lou, l. h.] chinese acad sci, inst met res, superalloys div, shenyang 110016, peoples r china ; [xie, g. ; wang, l.] chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang 110016, peoples r china
关键词	Corrosion Resistant Superalloy Thermal Exposure Microstructure Stress Rupture Properties Silicon
学科领域	Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
资助者	Strategic Priority Research Program of the Chinese Academy of Sciences [XDA020404040]; National Basic Research Program (973 Program) of China [2010CB631201]; National Natural Science Foundation of China [50901079, 51201164]
收录类别	sci
语种	英语
WOS记录号	WOS:000373316300010
引用统计	被引频次：24[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/321006/75941
专题	中国科学院金属研究所
通讯作者	Dong, JS; Xie, G; Wang, L (reprint author), Chinese Acad Sci, Inst Met Res, Superalloys Div, Shenyang 110016, Peoples R China.; Wang, L (reprint author), Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Peoples R China.
推荐引用方式 GB/T 7714	Liu, T.,Dong, J. S.,Xie, G.,et al. Effect of silicon on microstructure and stress rupture properties of a corrosion resistant Ni-based superalloy during long term thermal exposure[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2016,656:75-83.
APA	Liu, T..,Dong, J. S..,Xie, G..,Wang, L..,Lou, L. H..,...&Wang, L .(2016).Effect of silicon on microstructure and stress rupture properties of a corrosion resistant Ni-based superalloy during long term thermal exposure.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,656,75-83.
MLA	Liu, T.,et al."Effect of silicon on microstructure and stress rupture properties of a corrosion resistant Ni-based superalloy during long term thermal exposure".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 656(2016):75-83.