Electro-thermal explosion directional spraying was used to prepare the stellite coating on substrate of the AISI 1045 steel. The morphologies of cross-section and worn scar, porosity, distribution of elements, micro- ...Electro-thermal explosion directional spraying was used to prepare the stellite coating on substrate of the AISI 1045 steel. The morphologies of cross-section and worn scar, porosity, distribution of elements, micro- hardness and wear resistance of the coating were determined by means of SEM, EDAX, micro-hardness tester and sliding wear tester. Because of the compact construction, good bonding and high hardness, the coating is characterized by good wear resistance. The results show that the mainly failure mode of the stellite coating is micro- plowing.展开更多
采用英国Micro Materials公司生产的Nano Test 600型纳米多功能测试仪,对电热爆炸喷涂方法制备的FeAl、FeCrAl、FeCrAlRE 3种电爆喷涂层,进行力学性能测试,通过3种涂层加卸载曲线的对比,以及每种涂层的硬度、弹性模量的测取,分析铁基3...采用英国Micro Materials公司生产的Nano Test 600型纳米多功能测试仪,对电热爆炸喷涂方法制备的FeAl、FeCrAl、FeCrAlRE 3种电爆喷涂层,进行力学性能测试,通过3种涂层加卸载曲线的对比,以及每种涂层的硬度、弹性模量的测取,分析铁基3种电爆喷涂层的力学性能及涂层表面规律,从而优化电爆喷涂工艺参数。展开更多
As a new spraying technology used in the remanufacturing engineering, electro-thermal explosion spraying holds a lot of advantages. Electro-thermal explosion spraying coating aliquation phenomena are reduced and non-c...As a new spraying technology used in the remanufacturing engineering, electro-thermal explosion spraying holds a lot of advantages. Electro-thermal explosion spraying coating aliquation phenomena are reduced and non-crystal, micro-crystal and millimicron-crystal and other microstructure are formed. The corrosion-resistance ability of electro-thermal explosion spraying coating in high temperature environment was surveyed respectively. SEM equipped with EDS was employed to analyze the microstructure of spraying coating before and after corrosion. The corrosion-resistance mechanism of the spraying coating was discussed.展开更多
文摘Electro-thermal explosion directional spraying was used to prepare the stellite coating on substrate of the AISI 1045 steel. The morphologies of cross-section and worn scar, porosity, distribution of elements, micro- hardness and wear resistance of the coating were determined by means of SEM, EDAX, micro-hardness tester and sliding wear tester. Because of the compact construction, good bonding and high hardness, the coating is characterized by good wear resistance. The results show that the mainly failure mode of the stellite coating is micro- plowing.
文摘采用英国Micro Materials公司生产的Nano Test 600型纳米多功能测试仪,对电热爆炸喷涂方法制备的FeAl、FeCrAl、FeCrAlRE 3种电爆喷涂层,进行力学性能测试,通过3种涂层加卸载曲线的对比,以及每种涂层的硬度、弹性模量的测取,分析铁基3种电爆喷涂层的力学性能及涂层表面规律,从而优化电爆喷涂工艺参数。
文摘As a new spraying technology used in the remanufacturing engineering, electro-thermal explosion spraying holds a lot of advantages. Electro-thermal explosion spraying coating aliquation phenomena are reduced and non-crystal, micro-crystal and millimicron-crystal and other microstructure are formed. The corrosion-resistance ability of electro-thermal explosion spraying coating in high temperature environment was surveyed respectively. SEM equipped with EDS was employed to analyze the microstructure of spraying coating before and after corrosion. The corrosion-resistance mechanism of the spraying coating was discussed.
