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Coarsening Behavior of Gamma Prime Precipitates in a Nickel Based Single Crystal Superalloy
Tang, S.; Ning, L. K.; Xin, T. Z.; Zheng, Z.; lkning@imr.ac.cn; tzxin13s@imr.ac.cn
2016
Source PublicationJOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
ISSN1005-0302
Volume32Issue:2Pages:172-176
AbstractThe gamma/gamma microstructural evolution in a nickel based single crystal superalloy during load-free thermal exposure at 900 degrees C has been further investigated in this paper. The growth characteristics of gamma precipitates were discussed in detail. The generation of interfacial dislocations would accelerate the rate of coalescence in the dendrite arms. The average sizes of precipitates were used to compare interface with diffusion controlled growth mechanism and no mechanism seems obviously dominant, although the square rate law gives slightly better fit. The coarsening behavior may be controlled by diffusion through the ragged interface between the gamma precipitate and the gamma matrix. Copyright (C) 2015, The editorial office of Journal of Materials Science & Technology. Published by Elsevier Limited. All rights reserved.
description.department[tang, s. ; ning, l. k. ; xin, t. z.] univ chinese acad sci, beijing 100049, peoples r china ; [tang, s. ; ning, l. k. ; xin, t. z. ; zheng, z.] chinese acad sci, inst met res, superalloy div, shenyang 110016, peoples r china
KeywordSingle Crystal Superalloy Coarsening Interfacial Dislocations Rate Controlling Mechanism
Indexed Bysci
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/74667
Collection中国科学院金属研究所
Corresponding Authorlkning@imr.ac.cn; tzxin13s@imr.ac.cn
Recommended Citation
GB/T 7714
Tang, S.,Ning, L. K.,Xin, T. Z.,et al. Coarsening Behavior of Gamma Prime Precipitates in a Nickel Based Single Crystal Superalloy[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2016,32(2):172-176.
APA Tang, S.,Ning, L. K.,Xin, T. Z.,Zheng, Z.,lkning@imr.ac.cn,&tzxin13s@imr.ac.cn.(2016).Coarsening Behavior of Gamma Prime Precipitates in a Nickel Based Single Crystal Superalloy.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,32(2),172-176.
MLA Tang, S.,et al."Coarsening Behavior of Gamma Prime Precipitates in a Nickel Based Single Crystal Superalloy".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 32.2(2016):172-176.
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