Mechanical Properties and Thermal Stability of W- ZrC/HfC-Re Alloys Fabricated by Spark Plasma Sintering
文献类型：期刊论文
| 作者 | Wang Hui1,2; Ding Chenshi1,2; Xie Zhuoming2 ; Liu Rui2; Fang Qianfeng2; Wang Xianping2; Liu Changsong2; Wu Xuebang2
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| 刊名 | RARE METAL MATERIALS AND ENGINEERING
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| 出版日期 | 2024-05-01 |
| 卷号 | 53 |
| 关键词 | tungsten alloys solution strengthening dispersion strengthening mechanical properties thermal stability |
| ISSN号 | 1002-185X |
| DOI | 10.12442/j.issn.1002-185X.20230729 |
| 通讯作者 | Xie Zhuoming(zmxie@issp.ac.cn) |
| 英文摘要 | Four kinds of tungsten-based materials, W- 0.5wt%ZrC-(1, 3)wt%Re ( WZC1R, WZC3R) and W-0.5wt%HfC-(1, 3)wt%Re (WHC1R, WHC3R) were prepared by mechanical ball milling and spark plasma sintering (SPS). The microstructures, mechanical properties and thermal stability were investigated. The WZC3R alloy exhibits a high ultimate tensile strength ( UTS) of 728 MPa at 500 degrees C and an UTS of 653 MPa at 600 degrees C, which are about 2.1 times higher than that of SPSed pure W. The uniformly distributed nano- sized ZrC and HfC particles can pin the grain boundaries and dislocations, thereby increasing the strength and inhibiting grain coarsening. The WHC3R exhibits a total elongation of 13.9% at 400 degrees C, and its DBTT is in the range of 300-400 degrees C, which is about 200 and 300 degrees C lower than that of SPSed W-ZrC and pure W, respectively. The addition of the solid solution element Re improves the toughness of W materials by increasing the number of available slip planes and reducing the critical stress needed to start plastic deformation. In addition, the four alloys show excellent high-temperature stability with no significant change in grain size and Vickers microhardness even after heat treatments at temperatures reach up to 1600 degrees C. The Re element solidly dissolved in W leads to lattice distortion; it can inhibit the diffusion of W atoms at high temperatures, hinder the migration of grain boundary, and slow down the kinetic process of W grain coarsening, thus enhancing the high-temperature stability of the W materials. |
| WOS关键词 | DISPERSION-STRENGTHENED TUNGSTEN ; TENSILE PROPERTIES ; BEHAVIOR ; RHENIUM ; DAMAGE ; MICROSTRUCTURES ; CONDUCTIVITY ; EVOLUTION |
| WOS研究方向 | Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001252666300011 |
| 出版者 | NORTHWEST INST NONFERROUS METAL RESEARCH |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/137012]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Xie Zhuoming |
| 作者单位 | 1.Univ Sci & Technol China, Hefei 230026, Peoples R China 2.Chinese Acad Sci, Hefei Inst Phys Sci, Inst Solid State Phys, Hefei 230031, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang Hui,Ding Chenshi,Xie Zhuoming,et al. Mechanical Properties and Thermal Stability of W- ZrC/HfC-Re Alloys Fabricated by Spark Plasma Sintering[J]. RARE METAL MATERIALS AND ENGINEERING,2024,53. |
| APA | Wang Hui.,Ding Chenshi.,Xie Zhuoming.,Liu Rui.,Fang Qianfeng.,...&Wu Xuebang.(2024).Mechanical Properties and Thermal Stability of W- ZrC/HfC-Re Alloys Fabricated by Spark Plasma Sintering.RARE METAL MATERIALS AND ENGINEERING,53. |
| MLA | Wang Hui,et al."Mechanical Properties and Thermal Stability of W- ZrC/HfC-Re Alloys Fabricated by Spark Plasma Sintering".RARE METAL MATERIALS AND ENGINEERING 53(2024). |
入库方式： OAI收割
来源：合肥物质科学研究院
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