固溶时效对7K01铝合金组织和硬度及电导率的影响

王孝国; 李秋书; 杨光印; 吴瑞瑞; 孟嘉楠; 宁小丹; 张开鑫

doi:10.15980/j.tzzz.2019.05.005

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固溶时效对7K01铝合金组织和硬度及电导率的影响
Effects of Solution and Ageing Treatment on Microstructure,Micro-Hardness and Electrical Conductivity of 7K01 Al Alloy
2019年39卷第5期页码：480-482
纸质出版日期： 2019 ，
DOI： 10.15980/j.tzzz.2019.05.005

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[1]王孝国,李秋书,杨光印,吴瑞瑞,孟嘉楠,宁小丹,张开鑫.固溶时效对7K01铝合金组织和硬度及电导率的影响[J].特种铸造及有色合金,2019,39(05):480-482.

Wang Xiaoguo, Li Qiushu, Yang Guangyin, et al. Effects of Solution and Ageing Treatment on Microstructure,Micro-Hardness and Electrical Conductivity of 7K01 Al Alloy[J]. Special Casting & Nonferrous Alloys, 2019,39(5):480-482.
[1]王孝国,李秋书,杨光印,吴瑞瑞,孟嘉楠,宁小丹,张开鑫.固溶时效对7K01铝合金组织和硬度及电导率的影响[J].特种铸造及有色合金,2019,39(05):480-482. DOI： 10.15980/j.tzzz.2019.05.005.

Wang Xiaoguo, Li Qiushu, Yang Guangyin, et al. Effects of Solution and Ageing Treatment on Microstructure,Micro-Hardness and Electrical Conductivity of 7K01 Al Alloy[J]. Special Casting & Nonferrous Alloys, 2019,39(5):480-482. DOI： 10.15980/j.tzzz.2019.05.005.

摘要

以7K01铝合金为研究对象

对其进行不同温度固溶和时效处理

研究固溶和时效处理对其微观组织和显微硬度及电导率的影响

探究适合7K01合金的最佳固溶和时效处理方式。结果表明

7K01铝合金最佳的固溶温度范围在470～480℃

该温度区间内第二相回溶充分

固溶强化效果最佳

硬度（HRC）为24.7

电导率为15.85MS/m;经150℃×24h时效后

合金硬度（HRC）和电导率达到最高

分别为49.95和36.1MS/m。

Abstract

The new 7 K01 aluminium alloy was treated by solid solution and aging at different temperatures.The microstructures

micro-hardness and electrical conductivity of the new 7 K01 aluminium alloy during different solid solution and aging treatments were analyzed.The optimized solid solution and aging treatments for 7 K01 aluminium alloy were explored.The results show that the optimized solution temperature range of 7 K01 aluminium alloy is 470～480℃.The second phase is dissolved sufficiently at the temperature range

where the hardness and the electrical conductivity reach 24.7 HRC and 15.85 MS/m

respectively.With aging at 150 ℃ for 24 h

the hardness and the electrical conductivity of 7 K01 aluminium alloy rach 49.95 HRC and 36.1 MS/m

respecively.