| 充氢Ni_3Al｛110｝型解理断裂原位TEM观察SCIEI |
| |
| 引用本文： | 陈明伟,林栋梁,梁伟. 充氢Ni_3Al｛110｝型解理断裂原位TEM观察SCIEI[J]. 金属学报, 1994, 30(7): 331-336 |
| |
| 作者姓名： | 陈明伟 林栋梁 梁伟 |
| |
| 作者单位： | 上海交通大学，太原工业大学 |
| |
| 摘 要： | 利用ＴＥＭ原位观察技术研究了充氢Ｎｉ_３Ａｌ｛１１０｝型解理断裂裂纹萌生、扩展过程。发现｛１１０｝型解理裂纹的萌生是由于｛１１１｝型主裂纹前端位错塞积产生的局部应力集中造成的，且氢的存在降低了｛１１０｝面的解理能。
|
| 关 键 词： | Ni3Al 解理断裂 金属互化物 Ni_3Al intermetallic compound cleavage dislocation piling up |
| 收稿时间： | 1994-07-18 |
| 修稿时间： | 1994-07-18 |
IM-SITU TEM OBSERVATION OF {110} CLEAVAGE IN Ni_3Al WITH CHARGING HYDROGEN |
| |
| CHEN Mingwei,LIN Dongliang ,LIANG Wei. IM-SITU TEM OBSERVATION OF {110} CLEAVAGE IN Ni_3Al WITH CHARGING HYDROGEN[J]. Acta Metallurgica Sinica, 1994, 30(7): 331-336 |
| |
| Authors: | CHEN Mingwei LIN Dongliang LIANG Wei |
| |
| Abstract: | The {110} cleavage fracture of Ni_3Al after charging hydrogen has been investigated by in situ TEM observation technique. The dislocations which piled up at the {111} crack tip generate high stress concentration to nucleate microcrack in {110}. In addition,hydrogen decrease the cohension of {110} |
| |
| Keywords: | Ni_3Al intermetallic compound cleavage dislocation piling up |
| 本文献已被 CNKI 维普 等数据库收录！ |
| 点击此处可从《金属学报》浏览原始摘要信息 |
|
点击此处可从《金属学报》下载全文 |
