Tribological behaviour of Fe-28Al-5Cr alloy reinforced by TiC under acid environment

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• 作者：Xinghua Zhang ; Jiqiang Ma ; Fei Li ; Licai Fu ; Zhuhui Qiao ; Weimin Liu ; Jun Yang
• 关键词：Iron&ndash ; aluminide ; Composites ; Wear resistant ; Corrosive wear
• 刊名：Tribology International
• 出版年：2013
• 出版时间：October, 2013
• 年：2013
• 卷：66
• 期：Complete
• 页码：27-34
• 全文大小：3179 K

文摘

Sliding wear behaviour of Fe-28Al-5Cr and its composites containing 15, 25, 35 and 50 wt % TiC was investigated against a Si₃N₄ ceramic ball in 1 mol/L H₂SO₄ solution. The wear rate and friction coefficient were significantly reduced by the addition of TiC. The main reason should be the load carrying role of hard TiC and the formed FeS and hydrated silica films becoming more and more stable with TiC content. The dominant wear mechanism of the Fe-28Al-5Cr alloy and the 15 % composite is ploughing and corrosive wear, but that of the 25 % , 35 % and 50 % composites is corrosive wear.