First-principles Investigations of Atom Migration in alpha-Titanium
文献类型：期刊论文
| 作者 | Zhang Lianji1,2; Hu Qingmiao1; Yang Rui1 |
| 刊名 | RARE METAL MATERIALS AND ENGINEERING
 |
| 出版日期 | 2017-06-01 |
| 卷号 | 46页码:246-249 |
| 关键词 | first-principles diffusion creep |
| ISSN号 | 1002-185X |
| 通讯作者 | Zhang Lianji(ljzhang12s@imr.ac.cn) |
| 英文摘要 | Titanium alloys find wide applications in aerospace industry for their high specific strength and good corrosion resistance. However, limited creep resistance may restrict their applications at high temperature. Experiments demonstrate that the steady creep activation energy is close to the effective diffusion activation energy, indicating that the atomic diffusion exerts an important effect on the creep resistance. In the present work, a first-principles method was employed to study the migration energy of various alloying atoms in a-titanium. The results show that for the atoms migrating through vacancy mechanism, the in-basal-plane migration energy decreases in the order of Al, V, Ti, Sn, Ta, Mo, Nb, Zr, whereas the out-plane migration energy decreases in the order of Al, Sn, V, Ti, Ta, Mo, Nb, Zr. For the atoms (Fe, Co, Ni) migrating through interstitial mechanism, the migration energies are quite low. |
| WOS研究方向 | Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000406570100050 |
| 出版者 | NORTHWEST INST NONFERROUS METAL RESEARCH |
| 源URL | [http://ir.imr.ac.cn/handle/321006/124783]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Zhang Lianji |
| 作者单位 | 1.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China 2.Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang Lianji,Hu Qingmiao,Yang Rui. First-principles Investigations of Atom Migration in alpha-Titanium[J]. RARE METAL MATERIALS AND ENGINEERING,2017,46:246-249. |
| APA | Zhang Lianji,Hu Qingmiao,&Yang Rui.(2017).First-principles Investigations of Atom Migration in alpha-Titanium.RARE METAL MATERIALS AND ENGINEERING,46,246-249. |
| MLA | Zhang Lianji,et al."First-principles Investigations of Atom Migration in alpha-Titanium".RARE METAL MATERIALS AND ENGINEERING 46(2017):246-249. |
入库方式： OAI收割
来源：金属研究所
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