| 钛合金棒料加工开裂原因分析 |
| |
| 引用本文： | 刘俊. 钛合金棒料加工开裂原因分析[J]. 理化检验(物理分册), 2006, 42(10): 526-527,505 |
| |
| 作者姓名： | 刘俊 |
| |
| 作者单位： | 中国工程物理研究院机械制造工艺研究所,绵阳,621900 |
| |
| 摘 要： | 使用扫描电镜、光学显微镜以及X射线能谱仪等仪器对加工成型过程中钛合金棒料的开裂件进行了检测分析。结果表明，开裂是在热处理之前产生的，开裂原因是棒料中存在的一些微小二次裂纹和析出的脆性第二相破坏了金属基体的连接强度，在机加工产生的残余应力作用下，引起了工件裂纹的扩展。
|
| 关 键 词： | 钛合金棒料 开裂 扫描电子显微镜 |
| 文章编号： | 1001-4012（2006）10-0526-02 |
| 收稿时间： | 2005-09-08 |
| 修稿时间： | 2005-09-08 |
CRACKING REASON ANALYSIS OF TITANIUM ALLOY BAR ON WORKING |
| |
| LIU Jun. CRACKING REASON ANALYSIS OF TITANIUM ALLOY BAR ON WORKING[J]. Physical Testing and Chemical Analysis Part A:Physical Testing, 2006, 42(10): 526-527,505 |
| |
| Authors: | LIU Jun |
| |
| Affiliation: | Institute of Mechanical Manufacture Technology, CAEP, Mianyang 621900, China |
| |
| Abstract: | Titanium alloy bar was analysis by means of scanning electron microscope, optical microscope and X radial energy spectrometer. The results showed that cracking is produced before the heat treatment. The reason of cracking was that some little secondary crack and separating out brittleness secondly phase destroyed the continuum intension. On the effect of the residual stress producing by machine process, the cracking was expanded. |
| |
| Keywords: | Titanium alloy bar Cracking Scanning electron microscope |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
