Effect of Al Content and Pressing Temperature on ECAP of Cast Mg Alloys
- Title
- Effect of Al Content and Pressing Temperature on ECAP of Cast Mg Alloys
- Author
- 신동혁
- Issue Date
- 2003-01
- Publisher
- TRANS TECH PUBLICATIONS LTD
- Citation
- MATERIALS SCIENCE FORUM, v.419-422, Issue I, page.491-496
- Abstract
- The difficult-to-work Mg alloys was subjected to equal channel angular pressing (ECAP) under a condition of various pressing temperatures. Pure Mg was susceptible to shear localization during ECAP; surface cracking occurred along to the direction of shear localization at lower temperatures than 573 K. Uniform flow occurred at 573 K, resulting in the successful 4 repetitive ECAP. The ECAP of Mg alloys containing Al (AZ series alloys) was unsuccessful at even higher temperature than 573 K. However, the ECAP temperature of AZ series alloys hot-rolled before ECAP became lowered, and the temperature for successful ECAP decreased with decreasing Al content, In particular, the hot-rolled AZ31 alloy could be ECAPed at 493 K. The ECAPed AZ31 alloy revealed the microstructure of dynamically recrystallized grains with a grain size in range of 1 to 10 μm. The deformation during ECAP was analyzed by dislocation characteristics.
- URI
- https://www.scientific.net/MSF.419-422.491https://repository.hanyang.ac.kr/handle/20.500.11754/155330
- ISSN
- 02555476
- DOI
- 10.4028/www.scientific.net/msf.419-422.491
- Appears in Collections:
- COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > MATERIALS SCIENCE AND CHEMICAL ENGINEERING(재료화학공학과) > Articles
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