固溶处理对Al<sub>2</sub>O<sub>3</sub>/7075复合材料的组织及力学性能的影响

涂凯; 闫洪; 吉顺; 喻保标; 魏志帆; 刘宇航

doi:10.15980/j.tzzz.2019.12.023

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固溶处理对Al₂O₃/7075复合材料的组织及力学性能的影响
Effects of Solution Treatment on Microstructure and Mechanical Properties of Al₂O₃/7075 Composites
2019年39卷第12期页码：1357-1361
纸质出版日期： 2019 ，
DOI： 10.15980/j.tzzz.2019.12.023

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[1]涂凯,闫洪,吉顺,喻保标,魏志帆,刘宇航.固溶处理对Al_2O_3/7075复合材料的组织及力学性能的影响[J].特种铸造及有色合金,2019,39(12):1357-1361.

Tu Kai, Yan Hong, Ji Shun, et al. Effects of Solution Treatment on Microstructure and Mechanical Properties of Al₂O₃/7075 Composites[J]. Special Casting & Nonferrous Alloys, 2019,39(12):1357-1361.
[1]涂凯,闫洪,吉顺,喻保标,魏志帆,刘宇航.固溶处理对Al_2O_3/7075复合材料的组织及力学性能的影响[J].特种铸造及有色合金,2019,39(12):1357-1361. DOI： 10.15980/j.tzzz.2019.12.023.

Tu Kai, Yan Hong, Ji Shun, et al. Effects of Solution Treatment on Microstructure and Mechanical Properties of Al₂O₃/7075 Composites[J]. Special Casting & Nonferrous Alloys, 2019,39(12):1357-1361. DOI： 10.15980/j.tzzz.2019.12.023.

摘要

采用球磨预制块和高能超声等方法制备了Al

含量为2.0%的7075复合材料

通过SEM、EDS、拉伸及硬度测试等方法

研究了固溶处理对Al

/7075复合材料显微组织和力学性能的影响。结果表明

随着固溶温度和时间的增加

/7075复合材料中第二相Mg（Zn

Al）

逐渐溶入基体中。与Al

/7075复合材料相比

经460℃×5 h固溶处理的Al

/7075复合材料的硬度、抗拉强度和伸长率分别提高了37.2%、19.0%和46.2%。

Abstract

/7075 composites were prepared by ball milling precast block and high-energy ultrasound method

and effects of solid solution treatment on the microstructure and mechanical properties of Al

/7075 composites were investigated by SEM

EDS

hardness and tensile testing. The results reveal that Mg（Zn

Al）

in the second phase of Al

/7075 composites is dissolved gradually into the matrix with the increase of solution temperature and time. Compared with those of Al

/7075 composites

the microhardness

tensile strength and elongation of Al

/7075 composite with solution treatment at 460 ℃ for 5 h are increased by 37.2%

19.0% and 46.2%

respectively.

关键词

Al2O3/7075复合材料固溶处理显微组织力学性能

Keywords

Al2O3/7075 CompositesSolid Solution TreatmentMicrostructureMechanical Properties

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固溶处理对Al2O3/7075复合材料的组织及力学性能的影响

Effects of Solution Treatment on Microstructure and Mechanical Properties of Al2O3/7075 Composites

DOI： 10.15980/j.tzzz.2019.12.023

摘要

Abstract

关键词

Keywords

references

固溶处理对Al₂O₃/7075复合材料的组织及力学性能的影响

Effects of Solution Treatment on Microstructure and Mechanical Properties of Al₂O₃/7075 Composites