Effect of Long-term Thermal Exposure on Microstructure and Stress Rupture Properties of GH3535 Superalloy

IMR OpenIR

	Effect of Long-term Thermal Exposure on Microstructure and Stress Rupture Properties of GH3535 Superalloy
	T.; Dong Liu, J. S.; Wang, L.; Li, Z. J.; Zhou, X. T.; Lou, L. H.; Zhang, J.
	2015
发表期刊	Journal of Materials Science & Technology
ISSN	1005-0302
卷号	31 期号:3 页码:269-279
摘要	The evolution of microstructure and the stress rupture properties of long term thermally exposed GH3535 alloy have been investigated. It was found that M6C carbides presented in the solid solution heat treated samples. During long term thermal exposure at 700 degrees C, fine M12C carbides precipitated preferentially at grain boundaries. These carbides coexisted with the pre-exiting M6C. The stress rupture life of 700 degrees C/1000 h exposed sample under creep testing at 650 degrees C/324 MPa is 93 h. It is much longer than that of the solid solution samples. No noticeable changes could be detected in both the microstructure and stress rupture lives when the samples were exposed for time longer than 1000 h M12C carbides were found to be beneficial to the creep properties. The cracks initiated at the interface of M6C carbides and matrix, which led to a lower creep rupture life. Copyright (C) 2015, The editorial office of Journal of Materials Science & Technology. Published by Elsevier Limited. All rights reserved.
部门归属	[liu, t.] dalian univ technol, sch mat sci & engn, dalian 116024, peoples r china. [liu, t. ; dong, j. s. ; wang, l. ; lou, l. h. ; zhang, j.] chinese acad sci, inst met res, shenyang 110016, peoples r china. [zhang, j.] chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang 110016, peoples r china. [li, z. j. ; zhou, x. t.] chinese acad sci, shanghai inst appl phys, shanghai 201800, peoples r china. ; dong, js (reprint author), chinese acad sci, inst met res, shenyang 110016, peoples r china. ; djs@imr.ac.cn
关键词	Gh3535 Superalloy Long Term Thermal Exposure Microstructure Carbide M6c M12c Stress Rupture Properties Nickel-base Superalloy Carbide Evolution
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/73868
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	T.,Dong Liu, J. S.,Wang, L.,et al. Effect of Long-term Thermal Exposure on Microstructure and Stress Rupture Properties of GH3535 Superalloy[J]. Journal of Materials Science & Technology,2015,31(3):269-279.
APA	T..,Dong Liu, J. S..,Wang, L..,Li, Z. J..,Zhou, X. T..,...&Zhang, J..(2015).Effect of Long-term Thermal Exposure on Microstructure and Stress Rupture Properties of GH3535 Superalloy.Journal of Materials Science & Technology,31(3),269-279.
MLA	T.,et al."Effect of Long-term Thermal Exposure on Microstructure and Stress Rupture Properties of GH3535 Superalloy".Journal of Materials Science & Technology 31.3(2015):269-279.