IMR OpenIR
An interplay of sulfur and phosphorus at the gamma-Ni/gamma '-Ni3Al interface
S. He; P. Peng; L. Peng; Y. Chen; H. Wei; Z. Q. Hu
2014
Source PublicationJournal of Alloys and Compounds
ISSN0925-8388
Volume597Pages:243-248
AbstractA first-principles investigation of the interplay of S and P and their role on the cleavage rupture of gamma-Ni/gamma'-Ni3Al interface is conducted. Trace elements S and P can coexist in the gamma-Ni/gamma'-Ni3Al interfacial region and their site preferences are scarcely changed by another heterogeneous element. S and P in duplex doping systems tend to simultaneously replace for a Ni and occupy an octahedral interstice adjacent to substituted sub-lattice site to form a doping atom pair, but the interaction between S-doping and P-doping varies with their distributions along or across the interfacial layer. The cleavage fracture of duplex doping interfaces generally occurs in the region between S-doped and P-doped atomic layers, and an extra heterogeneous dopant will further aggravate S- or P-induced embrittlement. It is revealed a strong repulsive interaction between P-doping and S-doping is responsible for the descent of cleavage fracture strengths caused by extra heterogeneous dopants. (C) 2014 Elsevier B. V. All rights reserved.
description.department[he, s. ; peng, p. ; peng, l. ; chen, y.] hunan univ, sch mat sci & engn, changsha 410082, hunan, peoples r china. [wei, h. ; hu, z. q.] chinese acad sci, inst met res, superalloy div, shenyang 110016, peoples r china. ; peng, p (reprint author), hunan univ, sch mat sci & engn, changsha 410082, hunan, peoples r china. ; ppeng@hnu.edu.cn
KeywordNi-based Superalloy Gamma-ni/gamma '-ni3al Interface Griffith Rupture Strength Doping First-principles Calculation Ni/ni3al Interface 1st-principles Superalloys Embrittlement Re
URL查看原文
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/72851
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
S. He,P. Peng,L. Peng,et al. An interplay of sulfur and phosphorus at the gamma-Ni/gamma '-Ni3Al interface[J]. Journal of Alloys and Compounds,2014,597:243-248.
APA S. He,P. Peng,L. Peng,Y. Chen,H. Wei,&Z. Q. Hu.(2014).An interplay of sulfur and phosphorus at the gamma-Ni/gamma '-Ni3Al interface.Journal of Alloys and Compounds,597,243-248.
MLA S. He,et al."An interplay of sulfur and phosphorus at the gamma-Ni/gamma '-Ni3Al interface".Journal of Alloys and Compounds 597(2014):243-248.
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
[S. He]'s Articles
[P. Peng]'s Articles
[L. Peng]'s Articles
Baidu academic
Similar articles in Baidu academic
[S. He]'s Articles
[P. Peng]'s Articles
[L. Peng]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[S. He]'s Articles
[P. Peng]'s Articles
[L. Peng]'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.