原位生长VC-WC-W_2C增强镍基激光熔覆层的耐蚀性研究  

Investigation on Corrosion Resistance of Ni-based Cladding Layer Reinforced by In-situ Grown VC-WC-W_2C

作　　者：杨宁[1] 李立凯[2] 赵先林[1] 

机构地区：[1]河南教育学院物理系,河南郑州450046 [2]中州大学信息工程学院,河南郑州450044

出　　处：《稀有金属与硬质合金》2014年第1期42-45,共4页Rare Metals and Cemented Carbides

基　　金：河南省教育厅科学技术研究重点项目(12A430006)

摘　　要：利用激光熔覆法在45#钢基材表面制备原位生长VC-WC-W2C颗粒强化镍基熔覆层,并采用静态浸泡法研究该熔覆层在10%H2SO4溶液中的腐蚀性。结果表明:不同V2O5+WO3+C含量的镍基熔覆层在10%H2SO4溶液中均表现出较好的耐蚀性,其中25%(V2O5+WO3+C)镍基熔覆层的耐蚀性最强,约为纯Ni60熔覆层的3倍。Ni-based cladding layer reinforeed by in-situ grown VC-WC-W2C particles was prepared on the surfarce of 45# steel substrate by laser cladding technology,and its corrosion resistance was studied in 10% H2SO4 solution with static immersion method. The results show that all the Ni-based cladding layers with different contents of V2O5 ＋WO3 ＋C exhibit good corrosion resistance in 10% H2SO4 solution, of which the corrosion resistance of Ni-based cladding layer with 25 % （V2O5 ＋ WO3 ＋ C） is the best, almost three times as much as that of pure Ni-60 cladding layer.

关 键 词：VC-WC-W2C Ni60自熔合金 激光熔覆 颗粒强化 原位生长 耐蚀性 

分 类 号：TG174.4[金属学及工艺—金属表面处理]