TiC粒子尺寸对增强马氏体耐磨钢磨损性能的影响  

Effect of TiC Particle Size on Wear Properties Reinforcement of Martensitic Wear-resistant Steel

作　　者：杨建华[1] Yang Jianhua(Hunan Valin Xiangtan Iron and Steel Co.,Ltd.)

机构地区：[1]湖南华菱湘潭钢铁有限公司

出　　处：《宽厚板》2024年第2期1-6,共6页Wide and Heavy Plate

基　　金：国家重点研发计划(项目编号:2017YFB0305100)

摘　　要：采用不同凝固速率获得相同成分的铸坯,按不同压缩比将铸坯热轧,经过热处理后,获得成分相同、硬度在450HV左右、TiC粒子尺寸在1.88~3.20μm之间的TiC粒子增强马氏体耐磨钢。对比研究TiC粒子增强马氏体耐磨钢在不同载荷往复滑动磨损条件下的磨损行为,结果表明:随着磨损载荷的增加,最佳耐磨性TiC粒子尺寸从1.88μm增加至2.60μm,其磨损机理为磨料磨损、氧化磨损和分层剥落。The slabs with same composition are produced at different solidification rates,and the slabs are hot-rolled according to different compression ratios.After heat treatment,TiC particle reinforced martensitic wear-resistant steel with the same composition,hardness of 450HV and the TiC particle size of 1.88~3.20μm is produced.The reciprocating sliding wear behavior of TiC particle reinforced martensitic wear-resistant steel at different loads is studied.The results show that with the increase of the wearing load,the optimum wear resistance corresponding TiC particle size increases from 1.88μm to 2.60μm,of which the wear mechanism is abrasive wear,oxidation wear and delamination spalling.

关 键 词：TiC粒子增强 马氏体耐磨钢 往复滑动磨损 

分 类 号：TG142.72[一般工业技术—材料科学与工程]