材料工程Issue(7)：66-72,7.DOI:10.3969/j.issn.1001-4381.2013.07.013
车轴钢表面渗氮/渗硫复合层的扭动微动磨损研究
Torsional Fretting Wear of Sulfurized-nitrided Layers Prepared on Axle Steel
摘要
Abstract
The sulfurized-nitrided layers were prepared on the surface of LZ50 steel by sulfurized-nitrided duplex processes.Base on the characterizations of the sulfurized-nitrided layers,the torsional fretting wear tests of the sulfurized-nitrided layers and LZ50 steel were carried out in dry condition under different torsional angular displacement amplitudes.The results indicated the sulfurized-nitrided layers were composed of ε-Fe2-3 N,γ'-Fe4N,FeS and FeS2 phases.The fretting regimes of the sulfurizednitrided layers were changed,i.e.the range of the mixed fretting regime was diminished,and the slip regime shifted to the direction of smaller angular displacement amplitude.The friction torques of the sulfurized-nitrided layers were lower than that of the substrate in the partial slip and slip regimes due to the support of the hard nitrided layer and the lubricating of the sulfide layer.Comparing with the substrate,the wear of material reduced greatly for the sulfurized-nitrided layers.The damage in the partial slip regime was slight,but in the mixed and slip regimes the damage mechanisms of the modified layer were mainly delamination,abrasive wear and oxidative wear.关键词
摩擦磨损/微动磨损/扭动微动/渗氮/渗硫复合处理Key words
friction and wear/ fretting wear/ torsional fretting/ sulfurized-nitrided duplex processes分类
机械制造引用本文复制引用
顾和根,蔡振兵,岳文,彭金方,朱旻昊..车轴钢表面渗氮/渗硫复合层的扭动微动磨损研究[J].材料工程,2013,(7):66-72,7.基金项目
国家自然科学基金资助项目(51025519,51005192) （51025519,51005192）
长江学者和创新团队发展计划资助(IRT1178) （IRT1178）
