敏化时间对国产5083-H116铝合金组织与性能的影响

基金项目:

河南省自然科学基金资助项目（202300410005）

Effect of Sensitization Time on the Microstructure and Properties of Domestic 5083-H116 Aluminum Alloy

摘要: 针对国产8 mm厚5083-H116铝合金，研究了敏化时间对其组织和性能的影响。结果表明，随着敏化时间的延长，5083铝合金微观组织中越来越多的β相（Al₃Mg₂）沿晶界析出，并且形成大量的网状结构；5083铝合金腐蚀电位降低，晶间腐蚀倾向性持续升高，强度降低，伸长率提高。
- 5083-H116铝合金 /
- 敏化 /
- β相
Abstract: The effect of sensitization time on the microstructure and properties of domestic 8 mm-thick 5083-H116 aluminum alloy was studied. The results showed that with the increase of sensitization time, more and more beta phases precipitated on grain boundaries, forming a large number of network structures, the corrosion potential of the aluminum alloy decreased gradually, the intergranular corrosion tendency increasesd, the strength decreasesd, and the elongation increasesd.
- 5083-H116 aluminum alloy /
- sensitization /
- beta phase

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