Effects of T6 heat treatment on thermal stability and wear behaviour of Al-12�5Si-4�5Cu-1�0Mg alloy

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Title:	Effects of T6 heat treatment on thermal stability and wear behaviour of Al-12�5Si-4�5Cu-1�0Mg alloy
Authors:	李勝隆;Lee, K Y;Lee, S L;Wu, C T;Chen, W C;Lin, J C
Contributors:	工學院材料科學與工程研究所
Keywords:	Al-12�5Si-4�5Cu-1�0Mg alloy;T6 heat treatment;Thermal stability;Wear behaviour
Date:	2012-06-08
Issue Date:	2026-04-23 11:32:55 (UTC+8)
Publisher:	Maney Publishing;London, England: Taylor & Francis
Abstract:	摘要： The present study elucidates how T6 heat treatment affects thermal stability and wear behaviour of Al-12·5Si-4·5Cu-1·0Mg alloy. The experimental alloys under as cast and T6 heat treated conditions were isothermally heat treated at 300°C for 100 h to investigate thermal stability and wear behaviour. Owing to the precipitation of a large amount of λ′ (Al 5 Cu 2 Mg 8 Si 6 ) and θ′ (Al 2 Cu) phases, T6 heat treated alloy showed the highest hardness before isothermal heat treatment. The coarsening of λ′ and θ′ phases led to a large decrease in hardness following isothermal heat treatment. The thermal stability of the T6 heat treated alloy was much worse than that of the as cast alloy. For wear behaviour, the as cast and T6 heat treated alloys showed the same wear rate with 10 N load after isothermal heat treatment, which indicated that the wear rates of Al-12·5Si-4·5Cu-1·0Mg alloys were independent on T6 heat treatment. Under 40 N load, the wear resistance of as cast alloy was superior to that of T6 heat treated alloy after isothermal heat treatment. 出版者： London, England: Taylor & Francis 出版日期： 2012-06 出處： Materials science and technology, 2012-06, Vol.28 (6), p.639-643 版權： 2012 Institute of Materials, Minerals and Mining Published by Maney on behalf of the Institute 2012 版權： 2012 Institute of Materials, Minerals and Mining Published by Maney on behalf of the Institute 識別號： ISSN: 0267-0836 識別號： EISSN: 1743-2847 識別號： DOI: 10.1179/1743284711Y.0000000057
Appears in Collections:	[Institute of Materials Science and Engineering] journal & Dissertation

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