FGH96合金微观组织和力学性能调控  

Microstructure and Mechanical Properties of FGH96 Alloy

作　　者：安震 韩昊 李福林[2] 付锐[2] 孟广慧[1] 丁旭[1] 曹静[1] 付宝全[3] 柯鹏 An Zhen;Han Hao;Li Fulin;Fu Rui;Meng Guanghui;Ding Xv;Cao Jing;Fu Baoquan;Ke Peng(Xi'an Aeronautical University, Xi'an 710077, China;Central Iron and Steel Research Institute, Beijing 100081, China;Western Superconducting Technologies Co., Ltd, Xi'an 710018, China)

机构地区：[1]西安航空学院,陕西西安710077 [2]钢铁研究总院,北京100081 [3]西部超导材料科技股份有限公司,陕西西安710018

出　　处：《稀有金属材料与工程》2019年第7期2297-2304,共8页Rare Metal Materials and Engineering

基　　金：西安市科技创新引导项目(201805032YD10CG16(4));博士后基金(2017M613235);西安市科技局高校院所人才服务企业工程项目(2017076CG/RC039(XAHK004))

摘　　要：利用电子探针、场发射扫描电镜等检测手段分析了粉末冶金FGH96合金在不同固溶热处理条件下的组织演变和力学性能。结果表明:粉末冶金FGH96合金涡轮盘边缘部分可观察到亮白色颗粒状的硼化物相,经EDS前测试了元素面扫描图像,可以判定硼化物相主要为富含元素W和Mo;随着固溶温度从1080℃升高至1160℃,抗拉强度和屈服强度都小幅度增加,而随着冷却速率的增加,抗拉强度和屈服强度相应增加;通过不同固溶温度处理后FGH96合金的蠕变性能相当,而随着冷却速率的增加,蠕变抗力大大增加。The microstructure evolution and mechanical properties of powder metallurgy FGH96 alloy under different solution heat treatment conditions were analyzed by electronic probes, field emission scanning electron microscopy and other advanced detection methods. The results show that bright white granular boride phase is observed in the edge of the powder metallurgy FGH96 alloy turbine disk by electron probe. According to the scanning results of the control element, it can be ascertained that the boride phase is mainly rich in elements W and Mo. As the solution temperature increases from 1080 to 1160 °C, both tensile strength and yield strength increase slightly, and they increase with increasing cooling rate. FGH96 alloy after the treatment with different solution temperatures exhibits comparable creep performance;however, as the cooling rate increases, the creep resistance is greatly increased.

关 键 词：FGH96合金 高温合金 微观组织演化 固溶处理 

分 类 号：TG146.15[一般工业技术—材料科学与工程]