IMR OpenIR
Aging induced segregation and nanoprecipitation in a severely deformed equiatomic high-entropy alloy
Li, Linlin; Li, Zhiming
2020-07-01
Source PublicationMATERIALS CHARACTERIZATION
Volume165
AbstractTo shed light on the impact of severe deformation on the elemental segregation of high-entropy alloys (HEAs) as well as the related changes in mechanical properties, we systematically investigated the equiatomic CrMnFeCoNi HEA cold rolled and aging treated subsequently at 450 degrees C for varying time periods. Dislocation cells, nano-twins and shear bands of nanostructures form and significantly increase the strength of the as-cold-rolled HEA. Upon aging for 18-96 h, elemental segregation occurs in the dislocation cell and twinning regions. With the aid of higher strain localization, NiMn, FeCo and Cr-rich phases of nanoscale precipitate in the shear band regions. The elemental segregation slightly while the nanoprecipitations significantly increase the local hardness and the bulk strength. The nanoprecipitations also decrease the plasticity of the HEA due to the early cracking along the abundant interphase boundaries. These findings clarify the compositional changes and mechanical properties of the deformed HEAs upon aging, and also provide implications for the design and processing of advanced materials.
DOI10.1016/j.matchar.2020.110369
WOS IDWOS:000541742100009
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/155694
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
Li, Linlin,Li, Zhiming. Aging induced segregation and nanoprecipitation in a severely deformed equiatomic high-entropy alloy[J]. MATERIALS CHARACTERIZATION,2020,165.
APA Li, Linlin,&Li, Zhiming.(2020).Aging induced segregation and nanoprecipitation in a severely deformed equiatomic high-entropy alloy.MATERIALS CHARACTERIZATION,165.
MLA Li, Linlin,et al."Aging induced segregation and nanoprecipitation in a severely deformed equiatomic high-entropy alloy".MATERIALS CHARACTERIZATION 165(2020).
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
[Li, Linlin]'s Articles
[Li, Zhiming]'s Articles
Baidu academic
Similar articles in Baidu academic
[Li, Linlin]'s Articles
[Li, Zhiming]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Li, Linlin]'s Articles
[Li, Zhiming]'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.