7050铝合金铸锭的热处理

方洲; 刘晓波; 陈鹏

doi:10.15980/j.tzzz.2017.02.025

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7050铝合金铸锭的热处理
Heat Treatment of 7050 Aluminum Alloy Ingots
2017年37卷第2期页码：205-208
纸质出版日期： 2017 ，
DOI： 10.15980/j.tzzz.2017.02.025

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[1]方洲,刘晓波,陈鹏.7050铝合金铸锭的热处理[J].特种铸造及有色合金,2017,37(02):205-208.

Fang Zhou, Liu Xiaobo, Chen Peng. Heat Treatment of 7050 Aluminum Alloy Ingots[J]. Special Casting & Nonferrous Alloys, 2017,37(2):205-208.
[1]方洲,刘晓波,陈鹏.7050铝合金铸锭的热处理[J].特种铸造及有色合金,2017,37(02):205-208. DOI： 10.15980/j.tzzz.2017.02.025.

Fang Zhou, Liu Xiaobo, Chen Peng. Heat Treatment of 7050 Aluminum Alloy Ingots[J]. Special Casting & Nonferrous Alloys, 2017,37(2):205-208. DOI： 10.15980/j.tzzz.2017.02.025.

摘要

对铸造7050铝合金进行均匀化热处理

并对处理后的试样硬度和微观组织进行分析

找出7050铝合金均匀化的最优化生产工艺。结果表明

均匀化处理工艺为480℃×24h;在该热处理工艺下

均匀化处理组织情况较好

过烧较少且硬度较高

晶界处仍含有以Cu为主的未溶第二相

但其形态由初始的块状变为断续的颗粒状。

Abstract

The 7050 aluminum alloys were treated by homogenization

and hardness and microstructure of the homogenized samples were analyzed to optimize the heat treatment parameters.The results show that with homogenized at 480 ℃for 24 h

the alloy exhibits the desirable structure with low over-burning and high hardness.In addition

dissolved secondary phase contained Cu can be observed at the grain boundary with the shape transformed from bulky structure into discontinous particles.