所属单位：材料科学与技术学院
发表刊物：SURFACE ENGINEERING
关键字：Al-Si coating mechanical alloying annealing treatment microhardness friction and wear resistance high-temperature oxidation resistance
摘要：An Al-Si composite coating was synthesised on Ti-6Al-4 V alloy substrate by means of mechanical alloying. The as-synthesised coating had a composite structure. The effects of annealing treatment on the microstructure, the mechanical properties and the oxidation resistance of coating were investigated. The increase in annealing temperature was conductive to the formation of multilayered structure of the coating. The formation processes of the layers at different annealing temperatures were discussed. The coating annealed at 800 degrees C had intermetallic layers, which improved the microhardness and wear resistance of the coating. The microhardness of the coating annealed at 800 degrees C reached more than three times of the substrate microhardness. In addition, the coating annealed at 800 degrees C had a thick inner protecting layer, which could retard the inward diffusion of oxygen during oxidation. The annealing of the coating at 800 degrees C could improve the mechanical properties and oxidation resistance of the coating.
ISSN号：0267-0844
是否译文：否
发表时间：2017-01-01
合写作者：Chen, Cheng,Lu, Congyang,沈以赴
通讯作者：冯晓梅
发表时间：2017-01-01