GH80A合金相的溶解析出规律及热处理制度研究  

Study on Rule of Solution and Precipitation of phases and Method for Heat Treatment of GH80A Alloy

作　　者：张立红[1] 冯小龙[1] 

机构地区：[1]宝钢集团上海五钢公司研究二所,上海200940

出　　处：《宝钢技术》2001年第6期44-48,共5页Baosteel Technology

摘　　要：定量分析了合金相的溶解析出规律 ,探讨了不同热处理制度对合金组织和力学性能的影响。结果表明 :合金中γ′相和碳化物相的析出峰分别在 70 0℃和 85 0℃左右 ,其大量溶解进入固溶体的温度分别为大于 1 0 2 0℃和大于 1 0 0 0℃ ,合金较为合适的热处理制度为 1 0 80℃× 8h ,空冷 (或水冷 ) + 70 0℃× 1 6h ,空冷或 1 0 80℃× 8h ,空冷 (或水冷 ) + 85 0℃× 2 4h ,空冷+ 70 0℃× 1 6h 。The rule of solution and precipitation of phases has been quantitatively analyzed and the influence of different methods for heat treatment on the structure and mechanical properties of GH80A alloy has been studied.The results showed that precipitation peaks of γ′ phase and carbides in alloy occurred separately at about 700℃ and 850℃ and a great quantity of them were soluted into solid solution over 1020℃ and 1000℃ respectively.The preferred method of heat treatment for GH80A alloy is shown as:1080℃×8h air or water cooling +700℃×16h air cooling or 1080℃×8h air or water cooling +850℃×24h air cooling +700℃×16h air cooling.

关 键 词：GH80A合金 碳化物相 热处理 高温合金 溶解析出规律 

分 类 号：TG166[金属学及工艺—热处理]