Effect of Sensitization Time on the Microstructure and Properties of Domestic 5083-H116 Aluminum Alloy
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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。
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关键词:
- 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.-
Key words:
- 5083-H116 aluminum alloy /
- sensitization /
- beta phase
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