摘要
结合煤矿特殊环境特点,以煤矿单体液压支柱缸体用钢27SiMn为基体,激光熔覆Ni60A+20%WC合金粉末制备熔覆层。采用扫描电镜、硬度计、磨损实验机、盐雾试验机对熔覆层性能进行分析研究。结果表明:熔覆层与基体间为冶金结合,熔覆层耐磨性比基体材料有较大提高。熔覆层有很高的显微硬度和较强的耐腐蚀性能。
Combining with the characteristics of the special environmental conditions in mining, taked the sample-the hydraulic support which was made of 27SiMn steel used in coal mines as the matrixbase, and analyzed the cladding layer which was cladded with Ni60A＋20% WC alloy powder using laser. Microstructure and properties of the cladding layers were examined by means of SEM, hardness test, wear testand salt-mist test. The results show that metallurgy binding interface between the cladding layer and the base metal is obtained. Wear-resistance and hardness of the clad 27SiMn steel are obviously improved. The cladding layer has high hardness and strong corrosion resistance.
出处
《煤炭学报》
EI
CAS
CSCD
北大核心
2012年第2期340-343,共4页
Journal of China Coal Society
关键词
单体液压支柱
缸体
激光熔覆
摩擦磨损性能
耐腐蚀性
single hydraulic support
cylinder
laser cladding
tribological wear properties
corrosion resistant
