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熔渗法制备W-Ce合金的探索研究
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1.北京理工大学材料学院;2.安泰科技股份有限公司;3.安泰天龙钨钼科技有限公司

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国家自然科学基金资助(项目号No.52001026),北京理工大学科技创新项目创新人才科技资助专项(项目号No.2022CX01012)和北京理工大学青年教师启动基金(项目号No.XSQD202210006)


Study on the preparation of W-Ce alloy by infiltration
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School of Materials Science and Engineering,Beijing Institute of Technology

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    摘要:

    本文以制备高密度和高热值的活性合金为目标,开展了W-Ce合金的探索研究。以W粉为原料,通过等静压压制制备多孔W骨架,随后对骨架进行烧结,提高骨架强度,最后通过液相熔渗Ce制备出了高密度W为骨架、活性Ce为填充相的W-Ce合金材料。研究了不同W骨架制备工艺得到的W-Ce合金的组织、性能、反应活性,结果表明:W-Ce合金致密度均在95%以上;合金相组成为W、Ce两个单质相,未形成金属间化合物;动态压缩强度范围为621 MPa~905 MPa,动态压缩塑性在20%~30%之间;W-Ce合金具有较低的反应阈值。

    Abstract:

    :In this paper, the exploration and research of W-Ce alloys were carried out to prepare high density and high calorific value active alloys. Porous W skeleton was prepared by isostatic pressing with W powder as raw material. Then the skeleton was sintered to improve the skeleton strength. Finally, W-Ce alloy material with high density W as skeleton and active Ce as filling phase was prepared by liquid phase infiltration of Ce. The microstructure, properties and reactivity of W-Ce alloys prepared by different W skeleton preparation processes were studied. The results show that the density of W-Ce alloys is above 95 %. The phase composition of the alloy is W and Ce, and no intermetallic compound is formed. The dynamic compressive strength ranges from 621 MPa to 905 MPa, and the dynamic compressive plasticity ranges from 20 % to 30 %. The W-Ce alloy has a lower reaction threshold.

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王欣,刘兴伟,刘天宇,王玲,李树奎,熊宁,刘金旭.熔渗法制备W-Ce合金的探索研究[J].稀有金属材料与工程,2024,53(5):1363~1370.[Wang Xin, Liu Xingwei, Liu Tianyu, Wang Ling, Li Shukui, Xiong Ning, Liu Jinxu. Study on the preparation of W-Ce alloy by infiltration[J]. Rare Metal Materials and Engineering,2024,53(5):1363~1370.]
DOI:10.12442/j. issn.1002-185X.20230154

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  • 收稿日期:2023-03-27
  • 最后修改日期:2023-05-22
  • 录用日期:2023-05-29
  • 在线发布日期: 2024-05-28
  • 出版日期: 2024-05-22