陈思泉,李艳辉,张伟.Al基块体金属玻璃的研究进展[J].材料导报,2016,30(17):127-133 |
Al基块体金属玻璃的研究进展 |
Research Progress in Al-based Bulk Metallic Glasses |
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DOI:10.11896/j.issn.1005-023X.2016.017.019 |
中文关键词: Al基金属玻璃 玻璃形成能力 过冷液相区 力学性能 粉体固化成形 |
英文关键词: Al-based metallic glasses, glass-forming ability, supercooled liquid region, mechanical properties, consolidation of powders |
基金项目: 高等学校博士学科点专项科研基金(20130041110006) |
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中文摘要: |
Al基金属玻璃具有高强度、高韧性、良好的耐蚀性,特别是其比强度高达330 kN·m/kg,作为新结构材料在航空航天领域具有潜在的应用前景。近年不仅研发出了具有大过冷液相区以及能形成块体金属玻璃的Al基合金,还通过粉体温热固化成形工艺实现了Al基金属玻璃的大块体化,推动了其在实际生产中的应用。简述了有关Al基金属玻璃合金的玻璃形成能力、过冷液体热稳定性、力学性能及其粉末烧结体的组织和性能等方面的最新研究进展,并对其发展存在的问题进行了探讨。 |
英文摘要: |
Al-based metallic glasses (MGs) exhibit high strength, high toughness, and good corrosion resis-tance. Especially, Al-based MGs possess high special strength which is up to 330 kN·m/kg. Therefore, Al-based MGs are promising for applications as a new type of structural materials in aerospace fields. In recent years, Al-based MGs with high glass-forming ability (GFA) and high supercooled liquid stability have been developed, and the MG samples in bulk form have been produced via copper mold casting and consolidation of Al-based MG powders as well, which will promote their practical use. In this paper, the research progress in the development, GFA, stabilization of supercooled liquid, and mechanical properties of Al-based MGs, together with the structure and properties of sintered Al-based MGs powder are reviewed. The problems during the development of the alloys are discussed. |
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