가스분사법으로 제조된 Mg-6 wt.% Al-1 wt.% Zn 합금의 시효특성
The Aging Characteristics of Mg-6 wt.% Al-1 wt.% Zn Alloy Prepared by Gas Atomization
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The aging characteristics of gas atomized Mg-6 wt.% Al-1 wt.% Zn alloy were investigated and compared to those of cast Mg-6 wt.% Al alloy. The gas atomized Mg-6 wt.% Al-1wt.% Zn alloy powders had spherical morphology between 1 and 100 ㎛ in diameter. After compaction under the pressure of 700㎫ at 320℃ for 10 min, the Mg-6 wt.% Al-1 wt.% Zn alloy showed a grain size of approximately 40㎛ which is smaller than that of the cast Mg-6 wt.% Al alloy, and a relative compact density of approximately 93%. After ageing, the Mg-6 wt.% Al-1 wt.% Zn alloy showed much faster peak hardness than cast Mg-6 wt.% Al alloy. The Mg-6 wt.% Al-1 wt.% Zn alloy showed the new fine precipitations with ageing time, while the cast Mg-6 wt.% Al alloy was almost similar morphology.
Abstract
The aging characteristics of gas atomized Mg-6 wt.% Al-1 wt.% Zn alloy were investigated and compared to those of cast Mg-6 wt.% Al alloy. The gas atomized Mg-6 wt.% Al-1wt.% Zn alloy powders had spherical morphology between 1 and 100 ㎛ in diameter. After compaction under the pressure of 700㎫ at 320℃ for 10 min, the Mg-6 wt.% Al-1 wt.% Zn alloy showed a grain size of approximately 40㎛ which is smaller than that of the cast Mg-6 wt.% Al alloy, and a relative compact density of approximately 93%. After ageing, the Mg-6 wt.% Al-1 wt.% Zn alloy showed much faster peak hardness than cast Mg-6 wt.% Al alloy. The Mg-6 wt.% Al-1 wt.% Zn alloy showed the new fine precipitations with ageing time, while the cast Mg-6 wt.% Al alloy was almost similar morphology.
참고문헌 (12)
- Y. Kojima, , Mater. Sci. Forum, 통권 : 488, pp.9~ (2005)
- T. M. Yue, , Mater. Letters, 47, pp.165~ (2001)
- J. A. Curran, , Surf. Coating Tech., 199, pp.177~ (2005)
- S. Y. Chang, , Mater. Sci. Forum, 통권 : 539, pp.1224~ (2007)
- 장시영, "플라즈마 전해 산화처리한 시효경화 Mg-Al 합금 피막의 기계적 및 전기화학적 특성", 한국재료학회지, 17(12), pp.648~653 (2007), 한국재료학회
- M. Sugamata, , Mater. Sci. Eng. A, 226, pp.861~ (1997)
- 장시영, "가스 분사법으로 제조한 Mg-Zn-Y 합금의 플라즈마 전해산화 피막 특성에 관한 연구", 한국분말야금학회지, 14(6), pp.372~379 (2007), 한국분말야금학회
- Y. Kawamura, , Mater. Trans., 42, pp.1172~ (2001)
- A. Aliseda, , Int. J. Multiphas. Flow, 34, pp.161~ (2008)
- Y. Kojima, "Handbook Advanced Magnesium Technology", pp.144~ (2000), Kallos Publishing
- Y. Uematsu, , J. of Sci. Eng. A, 517, pp.138~ (2009)
- R. Arrabal, , Surf. Coating Tech., 203, pp.2207~ (2009)