Characterization of continuous dynamic recrystallization in WE43 magnesium alloy

被引：33

作者：

Fatemi, S. M. ^{[1
]}

Paul, H. ^{[2
]}

机构：

[1] Shahid Rajaee Teacher Training Univ, Dept Met & Mat Engn, Tehran 13616785, Iran

[2] Polish Acad Sci PAS, Inst Met & Mat Sci, 25 Reymonta St, PL-30059 Krakow, Poland

来源：

MATERIALS CHEMISTRY AND PHYSICS | 2021年 / 257卷

关键词：

Dynamic Recrystallization; Localization; Texture; HIGH-TEMPERATURE DEFORMATION; RARE-EARTH-ELEMENTS; TEXTURE EVOLUTION; MICROSTRUCTURE; PRECIPITATION; NUCLEATION; MECHANISMS; BEHAVIOR; GROWTH; ZINC;

D O I：

10.1016/j.matchemphys.2020.123726

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The occurrence of continuous dynamic recrystallization in a solutionized WE43 alloy during compressive deformation at 450 degrees C was studied. It was revealed that dynamic formation of second phase particles may exhaust strain-hardening capacity of material, causing the deformation to be concentrated in shear regions. The results showed that prismatic < a > systems play the role as dominant deformation mechanism during shear band formation. The promotion of dislocation activity in this regions assist in the development of low angle boundaries, the misorientation of which is gradually increased with further deformation. The results indicated that, unlike common magnesium alloys, continuous dynamic recrystallization in the RE-containing experimental alloy involves the rotation of grains about non-basal poles. This was discussed relying on the pronounced contribution of non-basal slip during recrystallization of grains within shear regions.

引用

页数：8

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