| La_2O_3弥散增强钨合金面对等离子体材料及其高热负荷性能 |
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| 引用本文： | 种法力,陈勇,吴玉程,陈俊凌. La_2O_3弥散增强钨合金面对等离子体材料及其高热负荷性能[J]. 材料科学与工程学报, 2009, 0(3) |
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| 作者姓名： | 种法力 陈勇 吴玉程 陈俊凌 |
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| 作者单位： | 徐州工程学院数学与物理科学学院;合肥工业大学材料科学与工程学院;中国科学院等离子体物理研究所; |
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| 摘 要： | 本论文通过粉末冶金方法制备La2O3弥散增强钨合金面对等离子体材料并对其进行了组织性能和电子束热负荷性能的分析。结果显示La2O3弥散增强相抑制钨粒子长大效果显著,而且使W-1wt.%La2O3合金材料的抗弯强度提高了约35.7%。同时,W-1wt.%La2O3也表现出较好的热负荷性能,能够承受6MW/m2热负荷功率密度;在更高热负荷条件下,较高的表面温度导致La2O3出现熔化及W-1wt.%La2O3合金材料表面出现微裂纹等损伤,因此面对等离子体材料直接水冷对延长材料使用寿命和提高热负荷性能是十分重要的。
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| 关 键 词： | 钨合金 面对等离子体材料 热负荷性能 |
Tungsten Alloys Strengthened with Dispersed La_2O_3 and its Heat Flux Performance |
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| CHONG Fa-li,CHEN Yong,WU Yu-cheng,CHEN Jun-ling. Tungsten Alloys Strengthened with Dispersed La_2O_3 and its Heat Flux Performance[J]. Journal of Materials Science and Engineering, 2009, 0(3) |
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| Authors: | CHONG Fa-li CHEN Yong WU Yu-cheng CHEN Jun-ling |
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| Affiliation: | 1. Department of Mathematics and Physics;Xuzhou Institute of Technology;Xuzhou 221008;China;2. Department of Materials Science and Engineering;Hefei University of Technology;Hefei 230009;3. Institute of Plasma Physics;Chinese Academy of Sciences;Hefei 230031;China |
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| Abstract: | Tungsten alloy plasma facing material strengthened with dispersed La_2O_3 particles was prepared by means of powder metallurgy method. Its strengthening effects were evaluated and heat flux performance of W-1wt.%La_2O_3 alloys was tested in the electron beam facility. The results indicate that the growth of tungsten particles was held back by La_2O_3 particles not only in the process of sintering and heat flux tests. La_2O_3 particles enhance the strength of tungsten with a factor of 35.7%, and W-1wt.%La_2O... |
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| Keywords: | tungsten alloy plasma facing material heat flux performance |
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