钼铁对高锰钢自生碳化物组织与耐磨性的影响  

Effects of Molybdenum on Carbide Structure and Wear Resistance of High Manganese Steel Authigenic Carbide

作　　者：李国威[1] 刘立新 韩彦朝[3] 李海玉[3] 

机构地区：[1]辽宁工程技术大学机械工程学院,辽宁阜新123000 [2]锦州钛业有限公司 [3]辽宁工程技术大学材料学院,辽宁阜新123000

出　　处：《热加工工艺》2013年第7期207-208,211,共3页Hot Working Technology

摘　　要：通过在D256焊条药皮中加入一定量的钛铁、钒铁、钼铁、铬铁、碳化硼、石墨和稀土,利用焊接冶金反应在堆焊层中自生成硼化物、碳化物等硬质颗粒以提高耐磨堆焊材料的抗磨粒磨损性能。本文利用金相显微镜对堆焊层显微组织进行分析,通过硬度试验、磨损试验等,研究了焊条药皮组分中钼铁的加入对堆焊层硬度及耐磨性的影响。研究结果表明:加入钼铁后,堆焊层硬度和耐磨性都有所提高,其最高硬度达到60 HRC,比D256焊条提高了8 HRC,耐磨性也提高了1倍。The abrasive performance of hardfacing material was improved by hard particles （such as borides and carbides generating in the surfacing layer using the welding metallurgy reaction by adding the second phase methods of strengthening the matrix material, such as an amount of ilmenite D256 electrode covering, ferro-vanadium, molybdenum, chromium, boron carbide, graphite and rare-earth. The suresults show facing layer microstructure was studied by microscopy. The effects of molybdenum iron electrode coating component on the hardness, abrasive wear and adhesive wear were studied. The rthat： the hardness and wear resistance of the cladding layer with autogenetic particulate phase are improved. The highest hardness is 60 HRC, improved by 8 HRC than D256 electrodes, and the wear resistance improves by 1 times.

关 键 词：自生颗粒 耐磨堆焊材料 硬度 耐磨性 

分 类 号：TG422.1[金属学及工艺—焊接]