真空固溶处理对新型高强铝合金组织和性能的影响
Effects of Vacuum Solid Solution Treatment on Microstructures and properties of New High Strength Aluminum Alloy
季方方
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作者单位：贵州大学
中文关键字：真空固溶；高温；高强铝合金；组织；性能
英文关键字：solid solution , high temperature, new high-strength aluminum alloy, microstructure, properties
中文摘要： 本文通过研究真空固溶对新型高强铝合金组织和性能的影响，探讨了新型铝合金固溶过程中过烧对其组织及性能影响的机理。结果表明相同时效机制下，真空560℃高温固溶时，抗拉强度为452 Mpa，塑性9.5%。而普通560℃高温固溶时抗拉强度为320Mpa，塑性1.3%。因为普通固溶热处理晶界上复熔的液 相易被氧化，进而使材料强塑性大幅下降。
英文摘要： In this paper, we discuss that the vacuum solution effects on the microstructure and properties of the new high-strength aluminum alloy，and to explore a new type of aluminum solid solution over the course of the microstructure and properties impact of burning mechanism. The results show that the same aging mechanism, the vacuum 560 ℃ high temperature solution, the tensile strength of 452 Mpa, plastic 9.5%. The general solution at 560 ℃ high temperature tensile strength of 320Mpa, plastic 1.3%. Because the average grain boundary re-solution heat treatment of liquid melt susceptible to oxidation, strong plastic material and thus make a substantial decline.