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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2020.1
- 수록면
- 1,811 - 1,819 (9page)
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초록· 키워드
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In the present study, effects of Mn content on microstructure, hardness, tensile and dry sliding wear properties of eutecticAl–Si–Cu alloy in as cast-state were investigated. Mn addition to the eutectic alloy results in the formation of α-Al15Mn3Si2phase in its microstructure. It was found that hardness of eutectic alloy increases continuously with increasing Mn contentwhile its tensile strength and percentage elongation values decrease. It was also found that the friction coefficient and volumeloss of eutectic alloy decrease as Mn content increases. Amongst the alloys, the lowest friction coefficient is obtained withAl–12Si–3Cu–2Mn alloy yet the Al–12Si–3Cu–1Mn alloy exhibits the highest wear resistance. Formation of adhesion layer,its oxidation and delamination were observed to be main wear mechanisms of Al–12Si–3Cu–(0–2)Mn alloys. These findingsare explained in terms of formation of α-Al15Mn3Si2 phase, and its cracking tendency effect.
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