| 20CrMnMo钢中心楔块的渗碳与氢脆 |
| |
| 引用本文： | 贾厚雨,李忆莲,宫心勇,梁德玉,张生才,赵洪敏,王慧. 20CrMnMo钢中心楔块的渗碳与氢脆[J]. 金属热处理, 2002, 27(8): 57-60 |
| |
| 作者姓名： | 贾厚雨 李忆莲 宫心勇 梁德玉 张生才 赵洪敏 王慧 |
| |
| 作者单位： | 1. 天津机车车辆机械厂,天津,300232
2. 天津大学材料学院,天津,300072 |
| |
| 摘 要： | 对中心楔块渗碳导致的氢脆断裂现象进行了分析研究，测试分析结果表明，中心楔块在渗碳后出现氢脆，是因为工作表面缺陷和内部组织应力过大，在渗碳气氛中，吸附在工件表面的氢分子转变为氢原子，随后向应力集中区域富集，当氢的浓度达到临界值CH，引起微裂纹，裂纹在应力区扩展，最后导致氢致滞后断裂。
|
| 关 键 词： | 中心楔块 20CrMnMo钢 渗碳 氢脆 车辆缓冲器 |
| 文章编号： | 0254-6051(2002)08-0057-04 |
Carburization and Hydrogen Embrittlement of 20CrMnMo Steel Center Block |
| |
| JIA Hou yu ,LI Yi lian ,GONG Xin yong ,LIANG De yu ,ZHANG Sheng cai ,ZHAO Hong min ,WANG Hui. Carburization and Hydrogen Embrittlement of 20CrMnMo Steel Center Block[J]. Heat Treatment of Metals, 2002, 27(8): 57-60 |
| |
| Authors: | JIA Hou yu LI Yi lian GONG Xin yong LIANG De yu ZHANG Sheng cai ZHAO Hong min WANG Hui |
| |
| Affiliation: | JIA Hou yu 1,LI Yi lian 2,GONG Xin yong 1,LIANG De yu 1,ZHANG Sheng cai 2,ZHAO Hong min 1,WANG Hui 2 |
| |
| Abstract: | Hydrogen embrittlement fracture of 20CrMnMo steel center block carburized was analyzed in this paper.The results show that the cause of hydrogen embrittlement of the center block carburized is due to the surface defects and transformation stresses which result in enrichment of hydrogen.When the hydrogen content reach a critical value C H in defects,some slight cracks initiate and propagate,which causes hydrogen embrittlement of the center block. |
| |
| Keywords: | center block 20CrMnMo steel carburizing hydrogen embrittlement |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
