Microstructure and Mechanical Properties of Al35Ti15Cr20Mn20Cu10/6061Al Composites Fabricated by Spark Plasma Sintering

Liu Shiwen; Zhu Dezhi; Jin Xiaoqiang

doi:10.15980/j.tzzz.2021.01.008

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Microstructure and Mechanical Properties of Al₃₅Ti₁₅Cr₂₀Mn₂₀Cu₁₀/6061Al Composites Fabricated by Spark Plasma Sintering
Vol. 41, Issue 1, Pages: 43-46(2021)
Published： 2021 ，
DOI： 10.15980/j.tzzz.2021.01.008

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[1]刘是文,朱德智,金小强.等离子烧结Al_(35)Ti_(15)Cr_(20)Mn_(20)Cu_(10)/6061Al复合材料的组织与性能[J].特种铸造及有色合金,2021,41(01):43-46.

Liu Shiwen, Zhu Dezhi, Jin Xiaoqiang. Microstructure and Mechanical Properties of Al₃₅Ti₁₅Cr₂₀Mn₂₀Cu₁₀/6061Al Composites Fabricated by Spark Plasma Sintering. [J]. Special Casting & Nonferrous Alloys 41(1):43-46(2021)
[1]刘是文,朱德智,金小强.等离子烧结Al_(35)Ti_(15)Cr_(20)Mn_(20)Cu_(10)/6061Al复合材料的组织与性能[J].特种铸造及有色合金,2021,41(01):43-46. DOI： 10.15980/j.tzzz.2021.01.008.

Liu Shiwen, Zhu Dezhi, Jin Xiaoqiang. Microstructure and Mechanical Properties of Al₃₅Ti₁₅Cr₂₀Mn₂₀Cu₁₀/6061Al Composites Fabricated by Spark Plasma Sintering. [J]. Special Casting & Nonferrous Alloys 41(1):43-46(2021) DOI： 10.15980/j.tzzz.2021.01.008.

摘要

采用机械合金化与放电等离子烧结工艺制备了体积分数为5%的Al

增强6061Al复合材料

重点研究了烧结温度对轻质高熵合金增强铝基复合材料微观组织及力学性能的影响。当烧结温度为540℃时

复合材料的致密度最大为98.6%。此时复合材料基体与增强体之间产生明显过渡层

界面结合以扩散结合为主。随着烧结温度升高

复合材料的屈服强度出现先上升后下降的趋势。当烧结温度为540℃时

复合材料的屈服强度达到186MPa

相比基体的屈服强度提升了约75%

复合材料的屈服强度接近Iso-strain模型的计算值。

Abstract

5% Al

/6061 Al composites were prepared by mechanical alloying and spark plasma sintering.The effects of sintering temperature were mainly investigated on microstructure and mechanical properties of lightweight high entropy alloy reinforced aluminum matrix composites.With the sintering temperature of 540 ℃

the relative density of the composite reaches the maximum value of 98.6%.Meanwhile

an obvious transition layer is generated between the matrix and the reinforcement

which is dominated by diffusion bonding.With the increase of sintering temperature

the yield strength of the composites shows a trend of rising firstly and then decreasing.At 540℃

the yield strength of the composite reaches 186 MPa

which is about 75% higher than that of the matrix

extremely closing to the calculated value of the Iso-strain model.

关键词

轻质高熵合金铝基复合材料放电等离子烧结过渡层

Keywords

Lightweight High Entropy AlloyAl Matrix CompositeSpark Plasma SinteringTransition Layer

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Microstructure and Mechanical Properties of Al Matrix Composites Reinforced with High-entropy Alloy Particles Prepared by Sparking Plasma Sintering