双级固溶处理制度对7150铝合金显微组织和性能的影响
Influence of Two-stage Solution Treatment Processes on Microstructure and Mechanical Properties of 7150 Aluminum Alloy
张世兴, 蒋国兴, 高建华
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作者单位：(河南工业大学 机电工程学院, 河南 郑州 450007)
中文关键字：7150铝合金； 双级固溶处理； 显微组织； 硬度
英文关键字：7150 aluminum alloy; two-stage solution treatment; microstructure; hardness
中文摘要：研究了双级固溶制度(加热温度和保温时间)变化对7150铝合金组织和性能的影响。结果表明，合适的双级固溶热处理可通过使可溶相充分固溶，减少再结晶的程度，为后续热处理做好组织上的准备；7150合金的最佳双级固溶工艺是：460 ℃× 40 min+ 500 ℃× 30 min，为7150铝合金热处理工艺参数的确定及优化提供参考依据。
英文摘要：The influences of two-stage solution treatment process (heating temperature and holding time) on the microstructure and properties of 7150 aluminum alloy were researched. The results show that the two-stage solution heat treatment is ready for succedent heat treatment by improving dissolution of soluble constituents and decreasing recrystallization, and the optimal two-stage solution process of 7150 alloy is at 460 ℃ for 40 min and at 500 ℃ for 30 min, which can provide an evidence for the identification and optimization of the parameters of heat-treatment process for 7150 aluminum alloy.