A dramatic decrease of the dislocation velocity in Ni(3)Al single crystals under the influence of hydrogen
文献类型：期刊论文
| 作者 | Jiang, CB; Li, H; Tan, J; Wu, SD; Rong, LJ; Patu, S |
| 刊名 | INTERMETALLICS
 |
| 出版日期 | 2001-04-01 |
| 卷号 | 9期号:4页码:355-360 |
| 关键词 | nickel aluminides, based on Ni(3)Al hydrogen embrittlement defects : dislocation geometry and arrangement |
| ISSN号 | 0966-9795 |
| 通讯作者 | Jiang, CB(chbjiang@imr.ac.cn) |
| 英文摘要 | The effect of hydrogen on the average dislocation velocities in Ni(3)Al single crystals has been investigated by the etch-pit technique. It is found that the velocity is dramatically decreased by the charged high content of hydrogen and that the tension/compression asymmetry of the dislocation velocity is reversed. Detailed observation of the dislocation structure indicates that the motion of edge superkinks is seriously inhibited by hydrogen solutes. These results serve as a strong evidence for the mechanism of hydrogen strengthening in metals. The interaction between the solute H and the edge dislocations also throws a sidelight on the role of kinks in the flow stress anomaly in Ni(3)Al. (C) 2001 Elsevier Science Ltd. All rights reserved. |
| WOS研究方向 | Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000168566700012 |
| 出版者 | ELSEVIER SCI LTD |
| 源URL | [http://ir.imr.ac.cn/handle/321006/112741]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Jiang, CB |
| 作者单位 | 1.Chinese Acad Sci, Met Res Inst, State Key Lab Fatigue & Fracture Mat, Shenyang 110016, Peoples R China 2.Chinese Acad Sci, Met Res Inst, State Key Lab Rapidly Solidified Nonequilibrium A, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Jiang, CB,Li, H,Tan, J,et al. A dramatic decrease of the dislocation velocity in Ni(3)Al single crystals under the influence of hydrogen[J]. INTERMETALLICS,2001,9(4):355-360. |
| APA | Jiang, CB,Li, H,Tan, J,Wu, SD,Rong, LJ,&Patu, S.(2001).A dramatic decrease of the dislocation velocity in Ni(3)Al single crystals under the influence of hydrogen.INTERMETALLICS,9(4),355-360. |
| MLA | Jiang, CB,et al."A dramatic decrease of the dislocation velocity in Ni(3)Al single crystals under the influence of hydrogen".INTERMETALLICS 9.4(2001):355-360. |
入库方式： OAI收割
来源：金属研究所
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