Research About Microstructure and Wear Resistance of Hardfacing Layer on Cast Iron
来源期刊：材料保护2004年增刊第2期
论文作者：LI Guo-qing HE Bo-lin YU Ying-xia
关键词：hardfacing; cast iron; wear resistance; wear mechanism;
摘 要：It's simple technology to manufacture big trimming die by hardfacing on the base metal of cast iron. The chemical composition, microstructure, hardness, wear resistance and wear mechanism of the hardfacing layer were studied.The experimental results indicate that the hardfacing technology has much more advantages and cheaper than that of traditional process. The chemical composition, microstructure, hardness of the hardfacing metal are all satisfied for manufacturing the big trimming die by welding on cast iron. The wear resistant test of hardfacing layers were carried out by using two different electrodes. The wear resistance of new electrode hardfacing layer is higher than that of normal hardfacing electrode D322. The wear mechanism of hardfacing layer is belongs to abrasive wear model.
LI Guo-qing1，HE Bo-lin1，YU Ying-xia1
(1.College of Mechanical & Electrical Engineering, East China Jiaotong University, Nanchang, 330013, P. R. China)
摘要:It''s simple technology to manufacture big trimming die by hardfacing on the base metal of cast iron. The chemical composition, microstructure, hardness, wear resistance and wear mechanism of the hardfacing layer were studied.The experimental results indicate that the hardfacing technology has much more advantages and cheaper than that of traditional process. The chemical composition, microstructure, hardness of the hardfacing metal are all satisfied for manufacturing the big trimming die by welding on cast iron. The wear resistant test of hardfacing layers were carried out by using two different electrodes. The wear resistance of new electrode hardfacing layer is higher than that of normal hardfacing electrode D322. The wear mechanism of hardfacing layer is belongs to abrasive wear model.
关键词:hardfacing; cast iron; wear resistance; wear mechanism;
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