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    National Tsing Hua University Institutional Repository > 工學院  > 材料科學工程學系 > 期刊論文 >  Adhesive wear behavior of AlxCoCrCuFeNi high-entropy alloys as a function of aluminum content


    Please use this identifier to cite or link to this item: http://nthur.lib.nthu.edu.tw/dspace/handle/987654321/52718


    Title: Adhesive wear behavior of AlxCoCrCuFeNi high-entropy alloys as a function of aluminum content
    Authors: Wu,Jien-Min;Lin,Su-Jien;Yeh,Jien-Wei;Chen,Swe-Kai;Huang,Yuan-Sheng;Chen,Hung-Cheng
    教師: 林樹均
    Date: 2006
    Publisher: Elsevier
    Relation: Wear
    Volume 261, Issues 5-6, 20 September 2006, Pages 513-519
    Keywords: Wear of materials
    Aluminum alloys
    Friction
    Adhesion
    Volume fraction
    Delamination
    Microstructure
    Abstract: The AlxCoCrCuFeNi alloys with different aluminum contents prepared by arc melting were investigated on their adhesive wear behaviors. With increasing aluminum content, both the volume fraction of BCC phase and the hardness value increase, and thus the wear coefficient decreases. Moreover, the wear mechanism changes from delamination wear to oxidative wear. For low aluminum content, x = 0.5, the microstructure is of simple ductile FCC phase and the worn surface is deeply grooved and undergoes a periodic delamination which produces big debris. For medium aluminum content, x = 1.0, the microstructure is a mixture of FCC and BCC phases, and the worn surface is deeply grooved in FCC region but smooth in BCC region. Delamination wear is still dominant although oxidative wear occurs in the smooth region. For high aluminum content, x = 2.0, the microstructure is of BCC phase and the worn surface is smooth and yields fine debris with high oxygen content. The high aluminum content gives a large improvement in wear resistance. This improvement is attributed to its high hardness, which not only resists plastic deformation and delamination, but also brings about the oxidative wear in which oxide film could assist the wear resistance.
    URI: http://www.elsevier.com/
    http://nthur.lib.nthu.edu.tw/dspace/handle/987654321/52718
    Appears in Collections:[材料科學工程學系] 期刊論文

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