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Title of Journal: J of Materi Eng and Perform

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Abbravation: Journal of Materials Engineering and Performance

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Springer US

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DOI

10.1016/j.ajog.2008.09.166

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1544-1024

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Plastic Deformation of AlSubscript03/Subscript

Authors: ZhiMing Jiao ShengGuo Ma GuoZheng Yuan ZhiHua Wang HuiJun Yang JunWei Qiao
Publish Date: 2015/06/23
Volume: 24, Issue: 8, Pages: 3077-3083
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Abstract

The mechanical properties of Al03CoCrFeNi and AlCoCrFeNi highentropy alloys HEAs were investigated by instrumented nanoindentation over a broad range of loading rates It was found that the loading portion of the two HEAs exhibited apparent discontinuities at low loading rates However the discontinuity became less pronounced with increasing the loading rate The experimental results that the hardness elastic modulus and yield strength of AlCoCrFeNi HEAs are larger than those of Al03CoCrFeNi HEAs can be elucidated in terms of thermodynamic and topological parameters of the constituent elements and solid solution strengthening respectively In situ scanning images displayed a significant pileup around the indents demonstrating that a highly localized plastic deformation occurred under nanoindentation Furthermore the resistance for creep behavior increases as the Al concentration is increased due to the enlarged lattice distortion related to a solution strengthening effectJWQ would like to acknowledge the financial support of National Natural Science Foundation of China No 51101110 and No 51371122 and the Program for the Outstanding Innovative Teams of Higher Learning Institutions of Shanxi 2013 HJY would like to acknowledge the financial support from State Key Lab of Advanced Metals and Materials No 2013Z03 and the Youth Science Foundation of Shanxi Province China No 20140210173 Z H W would like to acknowledge the financial support of the National Natural Science Foundation of China No 11390362 the Top Young Academic Leaders of Shanxi and the Outstanding Innovative Teams of Higher Learning Institutions of Shanxi The financial contributions were gratefully acknowledged

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  10. Facile Electrochemical Method to Improve Surface Features of Pure Copper in Dilute Basic Solutions
  11. Performance Evaluation of a Commercial Polyurethane Coating in Marine Environment
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  13. Analysis of Heat Affected Zone in Welded Aluminum Alloys Using Inverse and Direct Modeling
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