周清跃
,
王树清
,
邵扬道
,
乜树范
,
周镇国
金属学报
本文对具有不同碳含量的欠速淬火钢轨的力学性能、断裂韧性、金相组织及硬度进行了对比试验,结果表明,钢轨经欠速淬火后,强韧性及塑性均有明显提高,且淬火硬度越高,不仅耐磨也抗剥离,结合铺设试验,探讨了欠速淬火提高钢轨强韧性能的原因,及其含碳量、硬度与使用性能的关系。
关键词:
碳含量
,
slack-quenched rail
,
property
,
null
ZHOU Qingyue WANG Shuqing SHAO Yangdao NIE Shufan ZHOU Zhenguo China Academy of Railway Sciences
,
Beijing
金属学报(英文版)
A comparative investigation was carried out of the routine mechanical properties,fracture toughness,microstructure and hardness of slack-quenched rails containing different carbon contents.After the rails slack-quenched,their strength and toughness,together with ductility, are obviously improved,and the higher the quench hardening is,the more the resistance to wear and shell will be.Discussion was also made of the reason for this improvement and of the effect of carbon content and quench hardening on the properties of rails in combination with the rail-laying trial.
关键词:
carbon content
,
null
,
null
