Enhanced ambient temperature creep resistance of alpha/beta-Ti alloys induced by minor Fe
文献类型：期刊论文
| 作者 | Huang, Sensen; Ma, Yingjie; Qiu, Jianke; Wang, Hao; Lei, Jiafeng; Zong, Bernie Y.; Yang, Rui; Ma, YJ; Lei, JF (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China. |
| 刊名 | ELSEVIER SCIENCE SA
 |
| 出版日期 | 2017-09-29 |
| 卷号 | 705页码:169-175 |
| 关键词 | Titanium Alloy Creep Dislocation Diffusion Fe Content |
| ISSN号 | 0921-5093 |
| 英文摘要 | It is generally accepted that the addition of Fe deteriorates the creep behavior of titanium alloys at elevated temperature. However, the effect of Fe at ambient temperature is not well documented. In this paper, the creep performance of an alpha/beta titanium alloy with different Fe contents (0.05 and 0.20 wt%) was systematically studied at temperatures from the ambient to 500 degrees C. Creep resistance of samples with 0.20 wt% Fe was found to decrease at temperatures above 300 degrees C, but to increase at ambient temperature and 200 degrees C. The resulting stress exponent was in the range of 4.7-14.4, corresponding with dislocation creep. The fitted creep activation energy fell into two categories, i.e., 1) comparable with the self-diffusion activation energy of alpha-Ti at elevated temperature, and 2) remarkably higher than the former at 200-400 degrees C. The underlying mechanisms controlling creep processes at different temperatures were discussed.; It is generally accepted that the addition of Fe deteriorates the creep behavior of titanium alloys at elevated temperature. However, the effect of Fe at ambient temperature is not well documented. In this paper, the creep performance of an alpha/beta titanium alloy with different Fe contents (0.05 and 0.20 wt%) was systematically studied at temperatures from the ambient to 500 degrees C. Creep resistance of samples with 0.20 wt% Fe was found to decrease at temperatures above 300 degrees C, but to increase at ambient temperature and 200 degrees C. The resulting stress exponent was in the range of 4.7-14.4, corresponding with dislocation creep. The fitted creep activation energy fell into two categories, i.e., 1) comparable with the self-diffusion activation energy of alpha-Ti at elevated temperature, and 2) remarkably higher than the former at 200-400 degrees C. The underlying mechanisms controlling creep processes at different temperatures were discussed. |
| 学科主题 | Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| 资助机构 | Natural Science Foundation of China [51401221, 51671195] |
| 公开日期 | 2018-01-10 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/79082]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Ma, YJ; Lei, JF (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Huang, Sensen,Ma, Yingjie,Qiu, Jianke,et al. Enhanced ambient temperature creep resistance of alpha/beta-Ti alloys induced by minor Fe[J]. ELSEVIER SCIENCE SA,2017,705:169-175. |
| APA | Huang, Sensen.,Ma, Yingjie.,Qiu, Jianke.,Wang, Hao.,Lei, Jiafeng.,...&Lei, JF .(2017).Enhanced ambient temperature creep resistance of alpha/beta-Ti alloys induced by minor Fe.ELSEVIER SCIENCE SA,705,169-175. |
| MLA | Huang, Sensen,et al."Enhanced ambient temperature creep resistance of alpha/beta-Ti alloys induced by minor Fe".ELSEVIER SCIENCE SA 705(2017):169-175. |
入库方式： OAI收割
来源：金属研究所
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