IMR OpenIR
Deformation-induced dissolution and growth of precipitates in an Al-Mg-Er alloy during high-cycle fatigue
M. Song; K. Du; Z. Y. Huang; H. Huang; Z. R. Nie; H. Q. Ye
2014
Source PublicationActa Materialia
ISSN1359-6454
Volume81Pages:409-419
AbstractThe dissolution and growth of Al-3(Er,Zr) precipitates during tensile fatigue experiments were investigated by quasi-in situ and postmortem scanning transmission electron microscopy with Z contrast imaging and X-ray energy dispersive spectroscopy. Al-3(Er,Zr) particles were observed with both non-core shell and core shell structures, which were formed during multiple-stage precipitations, in an Al-Mg-Er alloy. After fatigue deformations, the average size of the non-core shell structured precipitates increased significantly. By tracing the same precipitate particles before and after a high-cycle fatigue test, quasi-in situ electron microscopy revealed that the increase of average particle size is associated with the substantial dissolution of small non-core shell structured Al-3(Er,Zr) particles, whose diameters are generally less than 15 nm, and a consequent growth of larger non-core shell Al-3(Er,Zr) precipitates. On the contrary, the core shell structured Al-3(Er,Zr) precipitates remain stable during high-cycle fatigue tests. Possible mechanisms for the dissolution and growth of non-core shell structured Al-3(Er,Zr) precipitates are discussed in terms of particle size, interfacial energy and lattice mismatch, in comparison to the stable core shell structured precipitates. (C) 2014 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
description.department[song, m. ; du, k. ; huang, z. y. ; ye, h. q.] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china. [huang, h. ; nie, z. r.] beijing univ technol, sch mat sci & engn, beijing 100022, peoples r china. ; du, k (reprint author), chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china. ; kuidu@imr.ac.cn
KeywordAl-mg-er Alloy Al-3(Er,Zr) Precipitates Fatigue Quasi-in Situ Transmission Electron Microscopy (Tem) Mechanical-properties Elevated-temperatures Electron-microscopy Zr Alloys Microstructure Behavior Evolution Coherency Ambient Erbium
URL查看原文
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/73370
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
M. Song,K. Du,Z. Y. Huang,et al. Deformation-induced dissolution and growth of precipitates in an Al-Mg-Er alloy during high-cycle fatigue[J]. Acta Materialia,2014,81:409-419.
APA M. Song,K. Du,Z. Y. Huang,H. Huang,Z. R. Nie,&H. Q. Ye.(2014).Deformation-induced dissolution and growth of precipitates in an Al-Mg-Er alloy during high-cycle fatigue.Acta Materialia,81,409-419.
MLA M. Song,et al."Deformation-induced dissolution and growth of precipitates in an Al-Mg-Er alloy during high-cycle fatigue".Acta Materialia 81(2014):409-419.
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
[M. Song]'s Articles
[K. Du]'s Articles
[Z. Y. Huang]'s Articles
Baidu academic
Similar articles in Baidu academic
[M. Song]'s Articles
[K. Du]'s Articles
[Z. Y. Huang]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[M. Song]'s Articles
[K. Du]'s Articles
[Z. Y. Huang]'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.