| 全层状TiAl合金室温拉伸性能的影响因素 |
| |
| 引用本文： | 唐建成 贺跃辉 等. 全层状TiAl合金室温拉伸性能的影响因素[J]. 稀有金属材料与工程, 2003, 32(3): 209-212 |
| |
| 作者姓名： | 唐建成 贺跃辉 等 |
| |
| 作者单位： | 中南大学,湖南,长沙,410083 |
| |
| 基金项目： | 国家自然科学基金(59895150)，国家“863”计划基金(715-005-0040)资助项目 |
| |
| 摘 要： | 研究了显微组织和应变速率对全层状Ti-47Al-2Cr(at%)合金室温拉伸性能的影响，结果表明，全层状TiAl基合金的室温拉伸强度和室温延伸率随晶团尺寸和层片间距的减小而提高；其室温拉伸强度随应变速率的加快而提高；而应变速率对其室温延伸率的影响与显微组织相关，低延性全层状TiAl基合金的室温延伸率对应变速率不敏感，而高延性全层状TiAl基合金的室温延伸率对应变速率敏感，并随应变速率的加快而提高。
|
| 关 键 词： | TiAl合金 室温拉伸性能 显微组织 应变速率 |
| 文章编号： | 1002-185X(2003)03-0209-04 |
| 修稿时间： | 2001-06-14 |
Factors Affecting the Room Temperature Tensile Properties of TiAl Alloys with Fully Lamellar Microstructures |
| |
| Tang Jiancheng,He Yuehui,Liu Wensheng,Zhou Kechao,Zhang Junhong,Lu Shiqiang,Huang Baiyun. Factors Affecting the Room Temperature Tensile Properties of TiAl Alloys with Fully Lamellar Microstructures[J]. Rare Metal Materials and Engineering, 2003, 32(3): 209-212 |
| |
| Authors: | Tang Jiancheng He Yuehui Liu Wensheng Zhou Kechao Zhang Junhong Lu Shiqiang Huang Baiyun |
| |
| Abstract: | The effects of the microstructure and the strain rate on the room temperature tensile properties of Ti 47Al 2Cr(at%) with fully lamellar microstructures were investigated. It is shown that the room temperature tensile strength and ductility increase with the decrease of colony size and lamellar spacing. The room temperature tensile strength increases with the increase of strain rate. The room temperature ductility of low ductility alloy is not sensitive to strain rate, but the ductility of high ductility alloy is sensitive and increases with the increase of the strain rate. |
| |
| Keywords: | TiAl alloy tensile properties microstructure strain rate |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《稀有金属材料与工程》浏览原始摘要信息 |
|
点击此处可从《稀有金属材料与工程》下载全文 |
