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가스분무 Mg-Zn-Y 합금분말의 압출거동Extrusion Behavior of Gas Atomized Mg Alloy Powders
- Other Titles
- Extrusion Behavior of Gas Atomized Mg Alloy Powders
- Issue Date
- Aug-2007
- Publisher
- 한국분말야금학회
- Keywords
- Mg Powders; Gas atomization; Extrusion; Mechanical property; Mg Powders; Gas atomization; Extrusion; Mechanical property
- Citation
- 한국분말야금학회지, v.14, no.4, pp 251 - 255
- Pages
- 5
- Indexed
- KCI
- Journal Title
- 한국분말야금학회지
- Volume
- 14
- Number
- 4
- Start Page
- 251
- End Page
- 255
- ISSN
- 1225-7591
2287-8173
- Abstract
- This work is to report not only the effect of rapid solidification of MgZn4.3Y0.7 alloys on the microstructure, but also the extrusion behavior on the materials properties. The average grain size of the atomized powders was about 3-4 mm. The alloy powders of Mg97Zn4.3Y0.7 consisted of I-Phase (Icosahedral, Mg3Zn6Y1) as well as Cubic structured W-Phase (Mg3Zn3Y2), which was finely distributed within a-Mg matrix. The oxide layer formed along the Mg surface was about 48 nm in thickness. In order to study the consolidation behavior of Mg alloy powders, extrusion was carried out with the area reduction ratio of 10:1 to 20:1. As the ratio increased, fully deformed and homogeneous microstructure could be obtained, and the mechanical properties such as tensile strength and elongation were simultaneously increased.
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Collections - 서울 공과대학 > 서울 신소재공학부 > 1. Journal Articles
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