IMR OpenIR
Activation Energy Calculations for the Portevin-Le Chatelier Effect in Nimonic 263 Superalloy
Han, G. M.; Tian, C. G.; Chu, Z. K.; Cui, C. Y.; Hu, Z. Q.; Sun, X. F.; chycui@imr.ac.cn
2015
Source PublicationMETALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE
ISSN1073-5623
Volume46AIssue:10Pages:4629-4635
AbstractThe Portevin-Le Chatelier (PLC) effect in the Nimonic 263 superalloy was investigated by tensile test in a wide temperature range, from room temperature to 1033 K (760 A degrees C), and at strain rates between 0.1 and 4 x 10(-4) s(-1). Types A, B, and C serrations were observed depending upon the test temperatures and strain rates. The activation energy (Q) for serrated flow was determined by employing various methodologies for T < 723 K (450 A degrees C), where a normal PLC effect was observed. The value of Q was found to be independent of the method employed. The average Q value of 70 KJ/mol was found to be in agreement with that for diffusion of substitutional solutes such as Cr and Mo in a Ni matrix by pipe diffusion. At temperatures ranging from 723 K to 923 K (450 A degrees C to 650 A degrees C), type C serrations and an inverse PLC effect were noticed, which may be caused by unlocking process.
description.department[han, g. m. ; tian, c. g. ; chu, z. k. ; cui, c. y. ; hu, z. q. ; sun, x. f.] chinese acad sci, inst met res, superalloy div, shenyang 110016, peoples r china
Funding OrganizationHigh Technology Research and Development Program of China [2014AA041701]; National Natural Science Foundation of China (NSFC) [51171179, 51271174, 51331005, 11332010]
Indexed Bysci
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/74613
Collection中国科学院金属研究所
Corresponding Authorchycui@imr.ac.cn
Recommended Citation
GB/T 7714
Han, G. M.,Tian, C. G.,Chu, Z. K.,et al. Activation Energy Calculations for the Portevin-Le Chatelier Effect in Nimonic 263 Superalloy[J]. METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE,2015,46A(10):4629-4635.
APA Han, G. M..,Tian, C. G..,Chu, Z. K..,Cui, C. Y..,Hu, Z. Q..,...&chycui@imr.ac.cn.(2015).Activation Energy Calculations for the Portevin-Le Chatelier Effect in Nimonic 263 Superalloy.METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE,46A(10),4629-4635.
MLA Han, G. M.,et al."Activation Energy Calculations for the Portevin-Le Chatelier Effect in Nimonic 263 Superalloy".METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE 46A.10(2015):4629-4635.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Han, G. M.]'s Articles
[Tian, C. G.]'s Articles
[Chu, Z. K.]'s Articles
Baidu academic
Similar articles in Baidu academic
[Han, G. M.]'s Articles
[Tian, C. G.]'s Articles
[Chu, Z. K.]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Han, G. M.]'s Articles
[Tian, C. G.]'s Articles
[Chu, Z. K.]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.