摘要
利用光学显微镜和扫描电镜，对Ｕ７１Ｍｎ钢铁轨的材质及断口进行了综合分析．结果表明，铁轨的断裂为非金属夹杂物引起的多源疲劳断裂．
Comprehensive analyses have been made on the material and fracture of U71Mn rail by the use of optical microscope and scanning electron microscope.Results indicate that the fracture of rails belongs to multi-source fatigue fracture caused by nonmetal inclusions.
出处
《广东有色金属学报》
1994年第1期65-70,共6页
Journal of Guangdong Non-Ferrous Metals
关键词
铁轨
疲劳
断裂
rail,fatigue,fracture
