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Effects of Cu addition on the microstructure and hardness of Mg-5Li-3Al-2Zn alloy

机译:添加铜对Mg-5Li-3Al-2Zn合金组织和硬度的影响

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摘要

The effects of Cu additions (0.5-2.0wt.%) on the microstructure and hardness of Mg-5Li-3Al-2Zn alloy were studied. Optical microscope, scanning electronic microscope, X-ray diffraction and energy dispersive X-ray spectroscope were employed to study the microstructure of the alloys. Results show that, as the Cu addition increases, the AlCuMg phase exists in the alloy. This phase can partially restrain the formation and growth of AlLi phase. The Brinell macrohardness of the as-cast alloys increases with the increase of Cu content. The Vickers microhardness of the phases of as-cast alloy was measured to analyze the strengthening mechanisms.
机译:研究了添加Cu(0.5-2.0wt。%)对Mg-5Li-3Al-2Zn合金的组织和硬度的影响。用光学显微镜,扫描电子显微镜,X射线衍射仪和能量色散X射线光谱仪研究了合金的微观结构。结果表明,随着Cu添加量的增加,合金中存在AlCuMg相。该相可以部分地抑制AlLi相的形成和生长。铸态合金的布氏硬度随Cu含量的增加而增加。测量铸态合金相的维氏显微硬度,以分析其强化机理。

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  • 来源
    《Materials Science and Engineering》 |2010年第11期|2780-2783|共4页
  • 作者单位

    Key Laboratory of Superlight Materials & Surface Technology (Harbin Engineering University), Ministry of Education, Harbin 150001, China;

    Key Laboratory of Superlight Materials & Surface Technology (Harbin Engineering University), Ministry of Education, Harbin 150001, China;

    College of Materials Science & Chemical Engineering, Harbin Engineering University, 145 Nantong Street, Harbin 150001, China;

    Key Laboratory of Superlight Materials & Surface Technology (Harbin Engineering University), Ministry of Education, Harbin 150001, China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Mg-Li alloy; Cu; microstructures; hardness;

    机译:镁锂合金;铜微观结构硬度;

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