| 李万东.Mg-Sn合金化与固溶-时效行为的研究现状[J].有色金属材料与工程,2023,44(5):22-27. |
| Mg-Sn合金化与固溶-时效行为的研究现状 |
| Research progress on elements addition and solution-aging behavior of Mg-Sn alloys |
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| DOI：10.13258/j.cnki.nmme.2023.05.004 |
| 中文关键词: Mg-Sn合金 时效处理 Mg2Sn相 析出强化 |
| 英文关键词:Mg-Sn alloy aging treatment Mg2Sn phase precipitation strengthening |
| 基金项目:承德市基础研究资助项目（202205B016） |
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| 中文摘要: |
| 作为具备良好发展前景的可时效强化镁合金，Mg-Sn合金通过Mg2Sn相析出强化、固溶强化与细晶强化获得了优异的性能。与Mg-Zn、Mg-Al主要镁合金相比，Sn在Mg中的固溶度较好，析出强化效果优异；另外，Mg2Sn相的熔点高达771.5 ℃，使Mg-Sn合金成为非稀土系列的低成本耐热镁合金。从合金化、固溶-时效处理工艺分析总结了可时效强化Mg-Sn合金的研究进展，分析Mg-Sn合金时效行为的重要参数及其影响因素，主要目的为细化Mg2Sn析出相或增加Mg2Sn析出相数量；同时，对添加到Mg-Sn合金中的合金元素的固溶效果、细晶效果与形成三元强化相效果进行系统总结与分析，为Mg-Sn合金成分的设计和性能改善提供重要参考。 |
| 英文摘要: |
| With a good development prospect, the solution-aged Mg-Sn alloys obtain excellent properties by precipitation strengthening, solution strengthening and grains refinement strengthening effects. Compared with Mg-Zn and Mg-Al alloys, the solid solubility of Sn in ɑ-Mg matrix is higher and the effective precipitation strengthening is easily achieved. In addition, the melting point of Mg2Sn phase is 771.5 °C, resulted in a low-cost and high heat-resistant magnesium alloy without rare earth. In this paper, the research progress of aging strengthening of Mg-Sn alloy was summarized from alloying elements and solution-aging treatment. The important parameters and influencing factors of aging behavior of Mg-Sn alloy was analyzed in detail. The main purpose is to refine Mg2Sn precipitates or increase the number of Mg2Sn precipitates. Meanwhile, the solution-strengthening effect, refinement strengthening effect and ternary phase formation with alloying elements addition to Mg-Sn alloys are systematically summarized and analyzed, which provide important references for composition design and mechanical improvement of Mg-Sn alloys. |
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