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首页> 外文期刊>Materials Science and Engineering >The effect of matrix hardening on the strength of the extruded 2024Al/Al_(18)B_4O_(33)w composite
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The effect of matrix hardening on the strength of the extruded 2024Al/Al_(18)B_4O_(33)w composite

机译:基体硬化对2024Al / Al_(18)B_4O_(33)w挤压复合材料强度的影响

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摘要

The hot extrusion is used to align the whiskers and improve the strength of the 2024Al/Al_(18)B_4O_(33)w composite. The effects of extrusion and T6 treatment on the microstructure, matrix hardening and tensile properties of 2024Al/Al_(18)B_4O_(33)w composite are investigated. The results show that the nano-hardness of matrix in the extruded composite increases. The yield strength increases and then reduces with increasing extrusion ratio. The alignment of whiskers along the extrusion direction and matrix hardening result in the increase in yield strength of the extruded composite. Compared with the continuous decrease in effective average aspect ratio of whiskers, matrix hardening has the obvious effect on the strengthening efficiency and the increase in σ_(UTS) - σ_(YS) of the extruded composite. The T6 treatment leads to the improvement in strength of the extruded composite. The extruded-T6 composite with the higher yield strength of the matrix has the lower hardening capacity.
机译:热挤压用于对齐晶须并提高2024Al / Al_(18)B_4O_(33)w复合材料的强度。研究了挤压和T6处理对2024Al / Al_(18)B_4O_(33)w复合材料的组织,基体硬化和拉伸性能的影响。结果表明,挤出复合材料中基体的纳米硬度增加。屈服强度随着挤出比的增加而增加,然后降低。晶须沿着挤出方向的排列和基质硬化导致挤出复合材料的屈服强度增加。与晶须的有效平均长径比连续降低相比,基体硬化对增强效率和挤出复合材料的σ_(UTS)-σ_(YS)增大具有明显的影响。 T6处理可提高挤出复合材料的强度。具有较高基体屈服强度的挤出T6复合材料的硬化能力较低。

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  • 来源
    《Materials Science and Engineering》 |2016年第30期|226-235|共10页
  • 作者单位

    School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, Heilongjiang, China,National Key Laboratory for Precision Hot Processing of Metals, Harbin 150001, Heilongjiang, China;

    School of Materials Science and Engineering, Harbin Institute of Technology, P.O. Box 435, No.92 West Dazhi Street, Harbin 150001, Heilongjiang, PR China,National Key Laboratory for Precision Hot Processing of Metals, Harbin 150001, Heilongjiang, China;

    School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, Heilongjiang, China,National Key Laboratory for Precision Hot Processing of Metals, Harbin 150001, Heilongjiang, China;

    School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, Heilongjiang, China;

    School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, Heilongjiang, China,National Key Laboratory for Precision Hot Processing of Metals, Harbin 150001, Heilongjiang, China;

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

    Metal matrix composite; Extrusion; Matrix hardening; Effective average aspect ratio; Yield strength;

    机译:金属基复合材料;挤压;基质硬化;有效平均纵横比;屈服强度;

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