Fabrication of (TiB/Ti)-TiAl composites with a controlled laminated architecture and enhanced mechanical properties
文献类型：期刊论文
| 作者 | Ding, Hao1; Cui, Xiping1; Gao, Naonao1; Sun, Yuan2; Zhang, Yuanyuan1; Huang, Lujun1; Geng, Lin1 |
| 刊名 | JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
 |
| 出版日期 | 2021-01-30 |
| 卷号 | 62页码:221-233 |
| ISSN号 | 1005-0302 |
| 关键词 | Titanium aluminide matrix composites Laminated structure High temperature properties Strengthening-toughening |
| DOI | 10.1016/j.jmst.2020.06.011 |
| 通讯作者 | Cui, Xiping(cuixiping@hit.edu.cn) ; Sun, Yuan(yuansun@imr.ac.cn) |
| 英文摘要 | The (TiB/Ti)-TiAl composites with a laminated structure composing of alternating TiB/Ti composite layers, alpha(2)-Ti3Al interfacial reaction layers of and gamma-TiAl layers were successfully prepared by spark plasma sintering of alternately stacked TiB2/Ti powder layers and TiAl powder layers. And the influence of thickness ratio of TiB2/Ti powder layers to TiAl powder layers on microstructure evolution and mechanical properties of the resulting (TiB/Ti)-TiAl laminated composites were investigated systemically. The results showed that the thickening of alpha(2)-Ti3Al layers which originated from the reaction of Ti and TiAl was significantly hindered by introducing TiB2 particles into starting Ti powders. As the thickness ratio of TiB2/Ti powder layers to TiAl powder layers increased, the bending fracture strength and fracture toughness at room temperature of the final (TiB/Ti)-TiAl laminated composites were remarkably improved, especially for the (TiB/Ti)-TiAl composites prepared by TiB2/Ti powder layers with thickness of 800 mu m and TiAl powder layers with thickness of 400 mu m, whose fracture toughness and bending strength were up to 51.2 MPa.m(1/2) and 1456 MPa, respectively, 293 % and 108 % higher than that of the monolithic TiAl alloys in the present work. This was attributed to the addition of high-performance network TiB/Ti composite layers. Moreover, it was noteworthy that the ultimate tensile strength at 700 degrees C of (TiB/Ti)-TiAl composites fabricated by 400 mu m thick TiB2/Ti powder layers and 400 mu m thick TiAl powder layers was as high as that at 550 degrees C of network TiB/Ti composites. This means the service temperature of (TiB/Ti)-TiAl laminated composites was likely raised by 150 degrees C, meanwhile a good combination of high strength and high toughness at ambient temperature could be maintained. Finally, the fracture mechanism of (TiB/Ti)-TiAl laminated composites was proposed. (C) 2020 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology. |
| 资助项目 | National Natural Science Foundation of China[51971079] ; National Natural Science Foundation of China[51771064] ; National Natural Science Foundation of China[51401068] |
| WOS研究方向 | Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| 出版者 | JOURNAL MATER SCI TECHNOL |
| WOS记录号 | WOS:000601221700022 |
| 资助机构 | National Natural Science Foundation of China |
| 源URL | [http://ir.imr.ac.cn/handle/321006/158813]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Cui, Xiping; Sun, Yuan |
| 作者单位 | 1.Harbin Inst Technol, Sch Mat Sci & Engn, POB 433, Harbin 150001, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Div Superalloys, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ding, Hao,Cui, Xiping,Gao, Naonao,et al. Fabrication of (TiB/Ti)-TiAl composites with a controlled laminated architecture and enhanced mechanical properties[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2021,62:221-233. |
| APA | Ding, Hao.,Cui, Xiping.,Gao, Naonao.,Sun, Yuan.,Zhang, Yuanyuan.,...&Geng, Lin.(2021).Fabrication of (TiB/Ti)-TiAl composites with a controlled laminated architecture and enhanced mechanical properties.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,62,221-233. |
| MLA | Ding, Hao,et al."Fabrication of (TiB/Ti)-TiAl composites with a controlled laminated architecture and enhanced mechanical properties".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 62(2021):221-233. |
入库方式： OAI收割
来源：金属研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。