Effects of channel angles on extrusion-shear for AZ31 magnesium alloy: modeling and experiments

Hu, H-J; Wang, H; Zhai, Z-Y; Li, Yuanyuan; Fan, J-Z; Ou, Z-W

doi:10.1007/s00170-014-6353-y

Cited by 18 publications

(2 citation statements)

References 29 publications

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“…As an earlier research group studying in ES process, various studied have been conducted. Based on our former studies [14][15][16] ES process is well suit for manufacturing long, straight products with a constant cross-section using direct extrusion and two steps ECAP which exerts local back pressure and shear force on materials at the turn corners. It could improve the workability and strength of magnesium alloys by refining the grains, and has bright prospect of application in the industries.…”

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Wear behaviors and wear mechanisms of wrought magnesium alloy AZ31 fabricated by extrusion-shear

Sun

et al. 2017

Engineering Failure Analysis

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Extrusion-Shear (ES) process for magnesium alloy is a newly developed plastic deformation technique which combines direct extrusion (DE) with ECAP(equal-channel angular pressing). Grains of ES-processed magnesium alloys can be refined effectively and mechanical properties can be improved, but the tribological properties have not been studied. In this study, the wear behaviors and wear mechanisms of AZ31 magnesium alloy samples produced by direct extrusion (DE) and extrusion-shear (ES) technologies, respectively, have been evaluated by fiction coefficient and wear frequencies obtained from the dry sliding tests conducted at different loads and frequencies by using a high speed dry sliding test machine. SEM and EDS analyses technologies also have been used to analyze the wear surfaces and wear debris in different fiction conditions. Based on the results, the ES-processed samples show a better wear resistance than those prepared by DE process as the ES-process samples show a lower friction coefficient comparing to those fabricated by DE process at the same conditions of loads and wear frequencies. With the increase of normal loads and reciprocating frequencies, the wear mechanism change from mild wear (adhesion, abrasion and oxidation) to severe wear (delamination, plastic deformation and melting). Therefore, the extrusion ways have significant influences on the wear behaviors of the samples and that the wear resistance of AZ31 magnesium alloy can be improved by extrusion-shear.

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Wear behaviors and wear mechanisms of wrought magnesium alloy AZ31 fabricated by extrusion-shear

Sun

et al. 2017

Engineering Failure Analysis

Self Cite

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“…The current research team has engaged in the researches of the extrusion-shear (ES) process which included initial forward extrusion and shearing process subsequently as early as 2008 8 .The authors 9,10 have put forward ES extrusion technology which combines the characteristics of direct extrusion and two pass equal channel extrusion. The experiments of ES process and direct extrusion have been performed, and direct extrusion and ES dies suitable for industrial horizontal extruder have been designed and manufactured.…”

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confidence: 99%

Crack Propagation Analysis of Magnesium Rod Processed by Extrusion-shear: Numerical Modeling and Experimental Verification

Wang

Zhang

et al. 2015

Mat. Res.

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Double extrusion of Mg-Al-Zn alloys

Liu

Yin

et al. 2016

Int J Adv Manuf Technol

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Effects of channel angles on extrusion-shear for AZ31 magnesium alloy: modeling and experiments

Cited by 18 publications

References 29 publications

Wear behaviors and wear mechanisms of wrought magnesium alloy AZ31 fabricated by extrusion-shear

Wear behaviors and wear mechanisms of wrought magnesium alloy AZ31 fabricated by extrusion-shear

Crack Propagation Analysis of Magnesium Rod Processed by Extrusion-shear: Numerical Modeling and Experimental Verification

Double extrusion of Mg-Al-Zn alloys

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