Al-20Si-5.5Fe-1.2Mg-0.5Mn 합금분말의 치밀화에 미치는 소결온도와 분위기의 영향
(주)코리아스칼라
- 최초 등록일
- 2016.04.01
- 최종 저작일
- 2008.06
- 8페이지/ 어도비 PDF
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서지정보
ㆍ발행기관 : 한국분말야금학회
ㆍ수록지정보 : 한국분말야금학회지 / 15권 / 3호
ㆍ저자명 : 이재욱, 박상빈, 양상선, 김용진
영어 초록
The densification behavior of Al-20Si-5.5Fe-1.2Mg-0.5Mn powders was investigated through micro-structure analysis of sintered specimens. The specimens sintered in vacuum or in high purity (99.999%) nitrogen showed porous near-surface microstructures. The densification of near-surface part was enhanced by means of ultra-high purity (99.9999%) nitrogen atmosphere. The relationship between slow densification and oxide surfaces of Al alloy powders was discussed. And the effects of Mg addition, nitrogen gas, and humidity on densification were discussed. In addition, the rapid growth of primary Si crystals above the critical temperature was reported.
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