高温预析出热处理工艺对7N01铝合金应力腐蚀的影响
Effect of High Temperature Pre-Precipitation Heat Treatment Process on Stress Corrosion of 7N01 Aluminum Alloy
摘 要
对T4热处理态的7N01铝合金进行高温预析出热处理（470℃×1 h+400℃×30 min+120℃×24 h）。采用慢应变速率试验（SSRT）研究了高温预析出热处理工艺对7N01铝合金抗应力腐蚀开裂（SCC）性能的影响。结果表明：高温预析出工艺可以明显提高T4热处理态7N01铝合金的抗SCC性能和塑性，同时保持较高的抗拉强度。
慢应变速率试验(SSRT)
热处理
应力腐蚀开裂(SCC)
7N01 aluminum alloy
slow strain rate testing (SSRT)
heat treatment
stress corrosion cracking (SCC)
Abstract
A heat treatment process of high temperature pre-precipitation (470 ℃×1 h+400 ℃×30 min+120 ℃×24 h) was conducted on 7N01 aluminum alloy in T4 heat treatment state. And slow strain rate testing (SSRT) was used to study the effects of high temperature pre-precipitation heat treatment on the stress corrosion cracking (SCC) resistance of 7N01 aluminum alloy in T4 heat treatment state. The results show that high temperature pre-precipitation process could obviously improve the SCC resistance, ductility and could maintain high tensile strength for 7N01 aluminum alloy in T4 heat treatment state.
中图分类号 TG156.9 DOI 10.11973/fsyfh-202004005
所属栏目 试验研究
基金项目
收稿日期 2018/11/12
修改稿日期
网络出版日期
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联系人作者李安敏(lamanny@126.com)
引用该论文: ZHENG Qifeng,XU Fei,LI Anmin,KONG Deming. Effect of High Temperature Pre-Precipitation Heat Treatment Process on Stress Corrosion of 7N01 Aluminum Alloy[J]. Corrosion & Protection, 2020, 41(4): 23
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