Tribological Behavior of Stellite 720 Coating under Block-on-Ring Wear Test  

作　　者：Rong Liu Qi Yang Feng Gao 

机构地区：[1]1Department of Mechanical and Aerospace Engineering, Carleton University, Ottawa, Canada [2]Department of Mechanical and Aerospace Engineering, Carleton University, Ottawa, Canada [3]Institute for Aerospace Research, National Research Council Canada, Ottawa, Canada

出　　处：《Materials Sciences and Applications》2012年第11期756-762,共7页材料科学与应用期刊（英文）

摘　　要：Stellite 720 is a high-carbon Co-Cr-Mo alloy, designed for severe wear/corrosion environments. This article presents a study of the Stellite 720 coating on stainless steel 304 under block-on-ring wear test. The coating is deposited through a slurry/powder metallurgy sintering process. Micro-hardness indentation test is conducted on the cross section of the coating specimen to investigate the hardness of individual phases of the coating material and the dilution effect of the substrate material on the coating layer. The tribological behavior of the coating under low and high load wear is investigated. The worn surfaces of the coating specimens are analyzed using a Philips XL30S FEG scanning electron micro- scope (SEM) with an EDAX energy dispersive X-ray (EDX) spectroscopy system. The experimental results are discussed to explore the wear mechanisms of the Stellite 720 coating under block-on-ring wear.Stellite 720 is a high-carbon Co-Cr-Mo alloy, designed for severe wear/corrosion environments. This article presents a study of the Stellite 720 coating on stainless steel 304 under block-on-ring wear test. The coating is deposited through a slurry/powder metallurgy sintering process. Micro-hardness indentation test is conducted on the cross section of the coating specimen to investigate the hardness of individual phases of the coating material and the dilution effect of the substrate material on the coating layer. The tribological behavior of the coating under low and high load wear is investigated. The worn surfaces of the coating specimens are analyzed using a Philips XL30S FEG scanning electron micro- scope (SEM) with an EDAX energy dispersive X-ray (EDX) spectroscopy system. The experimental results are discussed to explore the wear mechanisms of the Stellite 720 coating under block-on-ring wear.

关 键 词：STELLITE Alloy Block-on-Ring FRICTION WEAR 

分 类 号：TG17[金属学及工艺—金属表面处理]