电子束重熔Ni60A自熔合金涂层的研究  

RESEARCH ON Ni60A SELF-REFUSING ALLOY COATING FORMED BY ELECTRON RAY REFUSING

作　　者：李振铎[1] 于月光[1] 曾克里[1] 宋希剑[1] 

机构地区：[1]北京矿冶研究总院,北京100044

出　　处：《矿冶》2003年第3期52-56,12,共6页Mining And Metallurgy

摘　　要：用电子束重熔、等离子喷涂和等离子堆焊方法制备Ni60A自熔合金涂层。通过SEM、电子能谱和显微硬度分析表明,电子束重熔涂层与基体的结合较好、气孔率较低、细小的脆性相在涂层中起弥散强化作用,其显微硬度最高。磨损实验也证明了电子束重熔涂层的耐磨性最好。Ni60A selfrefusing alloy coating were deposited through electron ray refusing,plasma spray and plasma bead weldingThe coating was investigated by means of SEM,EDX and microhardness testThe results indicate that the coating formed by electron ray refusing has higher bond strength and lower porosity than the coatings formed by other processesBecause the dispersed oxide particles have an effect of precipitation hardening in coating,the coating formed by electron ray refusing has the highest microhardnessWear tests have proved that the coating formed by electron ray refusing has the highest wear resistance

关 键 词：电子束重熔 Ni60A自熔合金 热喷涂 等离子喷涂 等离子堆焊 镍合金 

分 类 号：TG146.15[一般工业技术—材料科学与工程]