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含有更多回收废料的AlSi10MnMg合金的微观结构和机械性能

Jaroslaw Piatkowski¹, Katarzyna Nowinska², Tomasz Matula³

¹Department of Material Technologies, Faculty of Materials Science, Silesian University of Technology, Krasinskiego 8, 40-019 Katowice, Poland.

Materials (Basel, Switzerland)

|March 13, 2025

概括

在AlSi10MnMg合金中回收废料需要仔细管理铁含量. 增加含量提炼铁相,保持高废件的机械性能.

科学领域:

材料科学材料科学材料科学
金工业是金工业的一个方面.
环境科学环境科学

背景情况:

增加件中的回收废料减少了成本和环境影响.
然而,废料杂质,特别是铁,会对合金的性能产生负面影响.
AlSi10MnMg对于汽车和运输压件至关重要.

研究的目的:

为了研究增加循环废料含量 (50-75%) 对AlSi10MnMg合金的影响.
为了确定限制铁含量以保持造质量.
探索在减轻铁相脆化中的作用.

主要方法:

微镜分析AlSi10MnMg合金的不同废弃物百分比 (50-75%).
评估铁相形态 (β-Al5FeSi与α-Al15(Fe,Mn) 3Si2) 的情况.
评估机械性能 (UTS,YS,延长) 和多孔性.

主要成果:

更高的废料含量增加了铁,导致有害的β-Al5FeSi相形成和降低机械性能.
增加的含量将β-Al5FeSi转化为不那么有害的α-Al15(Fe,Mn) 3Si2阶段.
最佳的Mn/Fe比率约为1/2对于避免污泥形成至关重要.

结论:

在控制铁和足够的的AlSi10MnMg件中,高达75%的回收废料是可行的.
添加是精炼铁相形态和保持机械完整性的关键.
这项研究为可持续造生产提供了关键的见解.

关键词:

这是AlSiMnMg合金.铁含量铁含量铁含量铁含量铁含量机械性能机械性能机械性能微观结构的微观结构多孔性多孔性回收废弃物回收废弃物

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