Effects of Heat Treatment on Microstructure and Properties of 6082 Aluminum Alloy

Fan Xiaoming; Wang Xukun; Xiong Ying; Liu Yijie

doi:10.15980/j.tzzz.2018.05.003

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Effects of Heat Treatment on Microstructure and Properties of 6082 Aluminum Alloy
Vol. 38, Issue 5, Pages: 475-478(2018)
Published： 2018 ，
DOI： 10.15980/j.tzzz.2018.05.003

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[1]范晓明,王旭坤,熊映,刘熠杰.热处理工艺对6082铝合金组织和性能的影响[J].特种铸造及有色合金,2018,38(05):475-478.

Fan Xiaoming, Wang Xukun, Xiong Ying, et al. Effects of Heat Treatment on Microstructure and Properties of 6082 Aluminum Alloy. [J]. Special Casting & Nonferrous Alloys 38(5):475-478(2018)
[1]范晓明,王旭坤,熊映,刘熠杰.热处理工艺对6082铝合金组织和性能的影响[J].特种铸造及有色合金,2018,38(05):475-478. DOI： 10.15980/j.tzzz.2018.05.003.

Fan Xiaoming, Wang Xukun, Xiong Ying, et al. Effects of Heat Treatment on Microstructure and Properties of 6082 Aluminum Alloy. [J]. Special Casting & Nonferrous Alloys 38(5):475-478(2018) DOI： 10.15980/j.tzzz.2018.05.003.

摘要

采用正交试验对原始锻态6082铝合金的固溶时效（T6）和固溶双级时效热处理工艺参数进行了优化

并针对优化方案进行了验证。结果表明

T6和固溶双级时效的优化工艺分别为550℃×2h+190℃×8h和550℃×6h+120℃×10min+190℃×8h。T6态合金的抗拉强度、伸长率和硬度（HBW）分别为305.7 MPa、7.1%和109

比原始锻态的抗拉强度和硬度（HBW）分别提高了90.0%和34.1%

而伸长率下降了47.4%;固溶双级时效的抗拉强度、伸长率和硬度（HBW）分别为335.8 MPa、8.7%、129.3

较T6态合金分别提高了9.8%、22.5%和18.6%。

Abstract

The orthogonal experiment was used to optimize the solution-aging（T6）and the solution+double stages aging treatment process parameters of original forged 6082 aluminum alloy

and the optimization scheme was verified.The results show that the optimization process of T6 and solution+double-stages aging treatment are 550 ℃×2 h+190 ℃×8 hand 550 ℃×6 h+120 ℃×10 min+190 ℃×8 h

respectively.The tensile strength

elongation and hardness of T6 treated alloy reach 305.7 MPa

7.1% and 109

respectively

which are 90.0% and 34.1% higher than that of original as-forged alloy in tensile strength and hardness

and decreased by 47.4%in elongation.Tensile strength

elongation and hardness of solution+double-stages aging treated alloy are 335.8 MPa、8.7%、129.3

respectively

which are 9.8%、22.5% and 18.6% higher than those of T6 treated alloy.