The deformation behavior of AZ31 Mg alloy with surface mechanical attrition treatment

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal

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Author(s)

  • Xiangchen Meng
  • Meng Duan
  • Lan Luo
  • Duochan Zhan
  • Bin Jin
  • Yuhai Jin
  • Xi-xin Rao
  • Yong Liu

Detail(s)

Original languageEnglish
Pages (from-to)636-646
Journal / PublicationMaterials Science and Engineering A
Volume707
Online published21 Sep 2017
Publication statusPublished - 7 Nov 2017

Abstract

In present work, the deformation behavior of AZ31 Mg alloy with surface mechanical attrition treatment (SMAT) had been studied. The microstructure and mechanical properties of AZ31 Mg alloy with SMAT were investigated. The results indicated that a gradient nanostructure could be formed in sample by SMAT, in which the grain size increased gradually from surface to matrix. A depth-dependent gradient microhardness was also formed due to the corresponding gradient microstructure. Yield strength and ultimate tensile strength of AZ31 Mg alloy with SMAT were significantly improved combining with decrease of fracture elongation. The effect of SMAT on anisotropy of mechanical properties of AZ31 alloy had been discussed and analyzed. The plastic anisotropy of the sample increased significantly after SMAT, which was related to the texture variation of rolled sheet and special deformation behavior of gradient nanostructure. Finally, in order to illuminate the difference in deformation behavior between fine and coarse grained microstructure, the in-situ tensile deformation behavior of AZ31 Mg alloy with one-side gradient structure had been studied by SEM. The deformation mechanism of AZ31 Mg alloy with gradient structure had been put forward.

Research Area(s)

  • Deformation behavior, Gradient nanostructure, Magnesium alloy, Mechanical properties, Surface mechanical attrition treatment

Citation Format(s)

The deformation behavior of AZ31 Mg alloy with surface mechanical attrition treatment. / Meng, Xiangchen; Duan, Meng; Luo, Lan; Zhan, Duochan; Jin, Bin; Jin, Yuhai; Rao, Xi-xin; Liu, Yong; Lu, Jian.

In: Materials Science and Engineering A, Vol. 707, 07.11.2017, p. 636-646.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal