摘要
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。
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'selecting on high-speed railway OCS components in extremely cold area.
出处
《电气化铁道》
2011年第4期1-4,47,共4页
Electric Railway
关键词
接触网
低温
冲击韧性
脆性断裂
OCS
cold regions
impact toughness
brittle fracture