| 钢轨断裂原因分析 |
| |
| 引用本文： | 邓建辉,邹明,吴雄先.钢轨断裂原因分析[J].理化检验(物理分册),2002,38(5):214-216. |
| |
| 作者姓名： | 邓建辉 邹明 吴雄先 |
| |
| 作者单位： | 四川省攀枝花钢铁集团公司钢铁研究院,攀枝花,617000 |
| |
| 摘 要： | 采用电子显微镜和光学显微镜对一横向断裂钢轨进行了宏，微观检验，结果表明，钢轨断裂起源于轨底一侧轨脚外伤缺陷处，而外伤缺陷是由于使用乙炔火焰误切割钢轨并使其形成硬而脆的非正常组织-马氏体和菜氏体所致。
|
| 关 键 词： | 钢轨 马氏体组织 断裂 铁路 莱氏体组织 原因分析 |
| 文章编号： | 1001-4012(2002)05-0214-03 |
| 修稿时间： | 2001年10月29 |
ANALYSIS OF RAIL FRACTURE |
| |
| DENG Jian hui,ZOU Ming,WU Xiong xian.ANALYSIS OF RAIL FRACTURE[J].Physical Testing and Chemical Analysis Part A:Physical Testing,2002,38(5):214-216. |
| |
| Authors: | DENG Jian hui ZOU Ming WU Xiong xian |
| |
| Abstract: | A rail of transverse fracture was examined by the electronic microscope and optical microscope. The results show that the facture was originated in one side of the rail bottom where the rail was cut wcth ethyne flame. The depth of martensite and ledeburite in the area of fracture initiation was up to 3mm. Therefore the rail fracture was due to the formation of the hard and brittle martensite and ledeburite caused by an unsuitable flame cutting with ethyne. |
| |
| Keywords: | Rail Martensite Fracture |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
