Enhancing tensile strength of Cu by introducing gradient microstructures via a simple torsion deformation - Details

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Abstract：

The　influences　of　pre-torsion　deformation　on　microstructure　and　tensile　strength　of　commercial　as-extruded　Cu　rods　with　cylindrical　shape　have　been　investigated　in　this　study　by　twisting　the　rods　to　different　numbers　of　revolutions.　The　results　indicated　that　the　pre-torsion　can　significantly　enhance　the　tensile　yield　strength　of　the　as-extruded　Cu　rods　without　changing　their　shape　and　size.　The　increase　in　tensile　yield　strength　is　mainly　due　to　the　gradient　lamellar　dislocation　substructures　(LDS)　embedded　in　elongated　fiber　grains　introduced　by　pre-torsion　pure　shear　deformation.　©　2015　Elsevier　Ltd.

Keyword：

Copper; Deformation properties; Gradient microstructure; Torsion

Community：

[ 1 ] [Guo, N.]Faculty of Materials and Energy, Southwest University, Chongqing, 400715, China
[ 2 ] [Guo, N.]School of Materials Science and Engineering, Chongqing University, Chongqing, 400030, China
[ 3 ] [Song, B.]Faculty of Materials and Energy, Southwest University, Chongqing, 400715, China
[ 4 ] [Yu, H.]Department of Mechanical and Materials Engineering, Queen's University, Kingston, ON K7L3N6, Canada
[ 5 ] [Xin, R.]School of Materials Science and Engineering, Chongqing University, Chongqing, 400030, China
[ 6 ] [Wang, B.]Department of Materials Science and Engineering, Fuzhou University, Fuzhou, 350108, China
[ 7 ] [Liu, T.]Faculty of Materials and Energy, Southwest University, Chongqing, 400715, China

Reprint 's Address：

[Guo, N.]School of Materials Science and Engineering, Chongqing UniversityChina

Email：

guoning_1000@163.com

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Source ：

Materials and Design

ISSN： 0264-1275

Year： 2016

Volume： 90

Page： 545-550

4 . 3 6 4

JCR@2016

7 . 6 0 0

JCR@2023

ESI HC Threshold：324

JCR Journal Grade：1

CAS Journal Grade：2

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ESI Highly Cited Papers on the List： 0 Unfold All

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30 Days PV： 0

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