FGH96合金微观组织和力学性能调控研究

Study on Microstructure and Mechanical Properties of FGH96 Alloy

摘要:

利用电子探针、场发射扫描电镜等先进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：通过电子探针分析粉末冶金FGH96合金涡轮盘边缘部分,发现可观察到亮白色颗粒状的硼化物相,对照元素面扫描图像,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℃增加至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。

Abstract:

The microstructure evolution and mechanical properties of powder metallurgy FGH96 alloy under different solution heat treatment conditions were analyzed by means of electronic probes, field emission scanning electron microscopy and other advanced detection methods. Results showed that the edge part of the powder metallurgy FGH96 alloy turbine disk was analyzed by electron probe. It was found that the bright white granular boride phase was observed, and the surface of the control element was scanned. It can be determined that the boride phase is mainly rich in elements W and Mo. As the solution temperature increased from 1080 °C to 1160 °C, both tensile strength and yield strength increased slightly, while tensile strength and yield strength increased with increasing cooling rate; FGH96 alloy after treatment with different solution temperature The creep performance is comparable, and as the cooling rate increases, the creep resistance is greatly increased. Through the research on the microstructure and mechanical properties of FGH96 alloy.