严寒地区高速铁路接触网金属材质探讨

论述了不同金属材质在低温环境下的一些机械特性，并结合高速铁路接触网特点进行了分析，认为低温冲击韧性是选择金属材质应重点考虑的因素，然后针对受低温影响较大的钢材质进行了分析并得出了一些结论，最后提出了严寒地区高速接触网材质选型上的几个建议。

Study on Metal Materials Used for Overhead Contact Line of High Speed Railway in Extremely Cold Area

In this paper, we discussed the physical properties of different metal materials under cold condition and further analyzed these properties related to high-speed railway OCS. We proposed that the cold temperature impact toughness should be the primary factor to be considered when selecting metal materials. Then,we studied steel material because its physical property had very remarkable change on the cold condition influence and drawed some conclusions. Finally, some advices are given for the metal materials...