热处理制度对粉末高温合金性能的影响  

Effect of heat treatment regulation on properties of FGH95 alloy

作　　者：贾成厂[1] 尹法章[2] 胡本芙[1] 梅雪珍[1] 

机构地区：[1]北京科技大学材料科学与工程学院,北京100083 [2]国家有色金属复合材料工程中心北京有色金属研究总院,北京100088

出　　处：《粉末冶金材料科学与工程》2006年第3期176-179,共4页Materials Science and Engineering of Powder Metallurgy

基　　金：国家"十五"民口配套重点研究项目(MKPT-01-127ZD)

摘　　要：对比研究了FGH95合金在不同热加工工艺和热处理制度下γ′相的分布,观察了不同热处理制度处理后合金的组织及时效后小γ′相的中心暗场像相,测试了室温(20℃)和高温(650℃)下材料的拉伸性能,并对高温(650℃)瞬时断裂区断口进行了对比分析。结果表明:相同热处理工艺,热等静压温度较高时,时效析出的γ′相尺寸大;不同热处理制度能改变γ′相的分布,盐浴冷却明显增大中等尺寸γ′相数量和合金的高温塑性。The distributions of γ′ phase of FGH95 P/M superalloy under different hot extrusions and heat treatments were investigated, the microstructure after heat treatments and γ′ phase＇s dark field images after aging treatments were studied, tensile properties at room temperature （20 ℃） and high temperature （650 ℃） were tested, the microstructure of instant fracture appearances at high temperature was also analysed. The results show that under the same heat treatments, the hot isostatic pressing temperature is higher, the size of γ′ phase during aging treatment is larger. Heat treatments processing can change the distributions of γ′ phase, and salt cooling can increase the total number of middle γ′ phase, and improve the high temperature plastic property obviously.

关 键 词：FGH95高温合金 热等静压 显微组织 热处理 

分 类 号：TE125.212[石油与天然气工程—油气勘探]