【摘要】 研究了稀土重轨轧后余热控冷提高力学性能的可能性。试验结果表明，利用热轧余热进行控冷处理提高稀土重轨的力学性能是可行的，采用适当的热处理工艺可提高断裂强度、断面收缩率、冲击韧度和硬度。更多还原

【Abstract】 In this paper the possibility to improve mechanical properties of rare earth heavy rail steel using controlled cooling after hot rolling is studied. Test results indicate that it is feasible to improve mechanical properties of the steel using controlled cooling process after hot rolling, σb,,impact toughness and hardness are raiseed with proper heat treatment更多还原