Oxygen induced phase transformation in an alpha plus beta titanium alloy
文献类型：期刊论文
| 作者 | Liu, Chengze1,2; Li, Geping1; Yuan, Fusen1,2; Ali, Muhammad1,2; Han, Fuzhou1,2; Zhang, Yingdong1,2; Gu, Hengfei1,3 |
| 刊名 | MATERIALS CHEMISTRY AND PHYSICS
 |
| 出版日期 | 2019-02-01 |
| 卷号 | 223页码:75-77 |
| 关键词 | Phase transformation Titanium Interface EBSD Nucleation |
| ISSN号 | 0254-0584 |
| DOI | 10.1016/j.matchemphys.2018.10.046 |
| 通讯作者 | Li, Geping(gpli@imr.ac.cn) |
| 英文摘要 | It is critical to understand oxygen (O) ingress behavior in titanium alloys at high temperatures, since it was directly associated with their high-temperature performance. Investigations revealed that the diffusion of O would result in a uniform alpha-case layer beneath the surfaces of titanium alloys. This layer greatly affected the mechanical performance of the alloys. In the present study, a novel O ingress phenomenon in an alpha + beta titanium alloy was observed. After the isothermal treatment in the air, a two-layered region beneath the specimen surfaces was formed: the outer layer (layer A) uniformly grew parallel to the diffusion direction of O; while the inner layer (layer B) precipitated within the first beta grain beneath layer A, arranging in specific orientations. By experimental investigation as well as theoretical analysis, the formation mechanism of the unique layers was understood: with the diffusion of O, an alpha + beta layer (layer A) was uniformly formed beneath the specimen surfaces, while creating a new interface between layer A and the matrix. This interface acted similarly as alpha(GB)( )during the precipitation of alpha(WGB) (layer B). In addition, Burgers orientation relationship was strictly obeyed during the formation of layer B. |
| WOS研究方向 | Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000456902400011 |
| 出版者 | ELSEVIER SCIENCE SA |
| 源URL | [http://ir.imr.ac.cn/handle/321006/131542]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Li, Geping |
| 作者单位 | 1.Chinese Acad Sci, Inst Met Res, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, 96 JinZhai Rd, Hefei 230026, Anhui, Peoples R China 3.Univ Chinese Acad Sci, 19 Yuquan Rd, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Chengze,Li, Geping,Yuan, Fusen,et al. Oxygen induced phase transformation in an alpha plus beta titanium alloy[J]. MATERIALS CHEMISTRY AND PHYSICS,2019,223:75-77. |
| APA | Liu, Chengze.,Li, Geping.,Yuan, Fusen.,Ali, Muhammad.,Han, Fuzhou.,...&Gu, Hengfei.(2019).Oxygen induced phase transformation in an alpha plus beta titanium alloy.MATERIALS CHEMISTRY AND PHYSICS,223,75-77. |
| MLA | Liu, Chengze,et al."Oxygen induced phase transformation in an alpha plus beta titanium alloy".MATERIALS CHEMISTRY AND PHYSICS 223(2019):75-77. |
入库方式： OAI收割
来源：金属研究所
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