自生碳化物对高锰钢堆焊层组织和性能的影响  

Iinfluence of Authigenic Carbide on Microstructure and Properties of Hadifield Steel

作　　者：马壮[1] 田琳[1] 李智超[1] 董世知[1] 周鹏[1] 

机构地区：[1]辽宁工程技术大学材料科学与工程学院,辽宁阜新123000

出　　处：《热加工工艺》2013年第3期176-178,共3页Hot Working Technology

摘　　要：在D256焊条药皮中加入钒铁、石墨、稀土等,利用焊接电弧冶金反应自发生成碳化物增强颗粒。实验结果表明:堆焊层组织为奥氏体组织和弥散分布于基体中的硬质碳化物颗粒,硬度达到64 HRC,其耐磨性为D256焊条堆焊层的4倍。The anthigenic carbide on the microstructure and properties of hadifield steel was studied by preparing authigenic carbide with ferrovanadium,graphite and rare earth as additives put into D256 welding electrode. The statistics show that authigenic carbide is evenly distributed among austenitic matrix, which can contribute to its hardness accretion to 64 HRC. Consequently, the wear-resistance was improved to 4 times higher than D256 clad.

关 键 词：自生碳化物 金属堆焊层 耐磨性 

分 类 号：TG422.1[金属学及工艺—焊接]