Effect of {10(1)over-bar2} Extension Twins on Microstructure Enhancement of Mg-3Al-1Zn Alloy in Half Channel Angular Extrusion
- Authors
- Kim, Kyungjin; Yoon, Jonghun
- Issue Date
- Jul-2015
- Publisher
- KOREAN INST METALS MATERIALS
- Keywords
- twinning; Mg-3Al-1Zn; mechanical properties; half channel angular extrusion (HCAE); electron backscattering diffraction (EBSD)
- Citation
- METALS AND MATERIALS INTERNATIONAL, v.21, no.4, pp.753 - 757
- Indexed
- SCIE
SCOPUS
KCI
- Journal Title
- METALS AND MATERIALS INTERNATIONAL
- Volume
- 21
- Number
- 4
- Start Page
- 753
- End Page
- 757
- URI
- https://scholarworks.bwise.kr/erica/handle/2021.sw.erica/17846
- DOI
- 10.1007/s12540-015-4401-2
- ISSN
- 1598-9623
- Abstract
- This paper mainly concerns the enhancement of the microstructure and mechanical properties of the Mg-3Al-1Zn rolled sheet alloy in the half channel angular extrusion (HCAE) process, linking with effects of the starting texture and {10 (1) over bar2} extension twin. The initial HCAE specimens are prepared by imposing the c-axis compression of 5% along the rolling direction to the Mg-3Al-1Zn sheet. They were applied in the HCAE process at the forming temperature of 523 K to make the enhanced microstructure named after HCAE-I-t, II, IIIt according to different starting textures. Improved mechanical properties and homogeneous grain structure with enhanced elongation can be achieved by the specific starting texture (HCAE-I-t) rather than the effect of the induced {10 (1) over bar2} extension twins in the initial specimen.
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