理化检验-物理分册2025，Vol.61Issue(9)：7-11,5.DOI:10.11973/lhjy-wl240159
试验参数对5083-H116铝合金晶间腐蚀测试结果的影响
Effect of test parameters on intergranular corrosion test results of 5083-H116 aluminum alloy
罗先甫 1王腾达 1孙绪鲁 1王佳 1刘辉 1田庆年 1刘晓勇 2查小琴3
作者信息
- 1. 中国船舶集团有限公司 第七二五研究所,洛阳 471023
- 2. 中国船舶集团有限公司 第七二五研究所,洛阳 471023||海洋腐蚀与防护全国重点实验室,洛阳 471023
- 3. 中国船舶集团有限公司 第七二五研究所,洛阳 471023||海洋腐蚀与防护全国重点实验室,洛阳 471023||河南省船舶及海工装备结构材料技术与应用重点实验室,洛阳 471023
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摘要
Abstract
The effects of temperature,nitric acid mass fraction and test time on the intergranular corrosion test results of 5083-H116 aluminum alloy were studied.The results show that 5083-H116 aluminum alloy had excellent intergranular corrosion resistance.The corrosion rate under standard test conditions was only 1.34 mg/cm2,and there was no intergranular corrosion characteristics on the surface of the sample.When the mass fraction of nitric acid was constant,the corrosion rate of the aluminum alloy increased exponentially with the increase of the test temperature.When the test temperature was constant,with the increase of nitric acid mass fraction,the corrosion rate of the aluminum alloy showed a downward trend.Under the standard test conditions,with the extension of test time,the corrosion rate of the sample showed a slow upward trend and tended to be stable.After changing the test conditions,the principle of nitric acid immersion intergranular corrosion test of 5083 aluminum alloy was deviated,and the results failed to effectively characterize its intergranular corrosion performance.Finally,ASTM G67-24a standard was recommended for intergranular corrosion test of 5083 aluminum alloy.关键词
5083-H116铝合金/晶间腐蚀/硝酸质量分数/试验温度/试验时间Key words
5083-H116 aluminum alloy/intergranular corrosion/nitric acid mass fraction/test temperature/test time分类
矿业与冶金引用本文复制引用
罗先甫,王腾达,孙绪鲁,王佳,刘辉,田庆年,刘晓勇,查小琴..试验参数对5083-H116铝合金晶间腐蚀测试结果的影响[J].理化检验-物理分册,2025,61(9):7-11,5.
