GH150合金三种热处理制度对比试验研究

STUDY ON THREE TYPES OF HEAT TREATMENT FOR GH150 SUPERALLOY THROUGH COMPARISON TEST

本文对CH150合金进行了 1120 ℃+800 ℃×16 h、1060 ℃+750 ℃×16 h和1060 ℃+800 ℃×16 h三种热处理制度对比试验,研究了700 ℃长期时效后合金组织和性能的变化规律。结果表明:三种热处理制度下合金的性能均能达到技术条件要求;采用1120 ℃固溶处理可获得良好的综合性能,降低固溶温度明显提高了拉伸强度特别是屈服强度。因此,可根据合金的使用条件不同,选择合适的热处理制度。

A comparison test for GH150 superalloy was carried outunder the three types of heat treatment-1120℃+800℃×16h, 1060℃+750℃X16h and 1060℃+800℃×16h. The changes in structures and properties in the superalloy were also examined after long time aging. The results have shown that the properties of the superalloy can meet its specification demands after each heat treatment of the three types studied. Through the solution treatment at 1120℃, good overall properties can be got; the tensile strength, especially the yi...