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长期时效对FGH95镍基粉末高温合金γ’相及晶格常数的影响张磊1,田素贵21. 沈阳科技学院实验中心2. 沈阳工业大学材料科学与工程学院摘 要:在不同温度下对FGH95镍基粉末高温合金进行长期时效处理,通过合金显微组织观察和X射线衍射分析,研究了长期时效对FGH95合金γ’相及晶格常数的影响.结果表明,完全热处理FGH95合金经450和550℃长期时效后,合金中细小γ’相略有长大,其粗化行为符合Lifshitz,Slyozov和Wagner(LWS)粗化动力学理论;随着时效时间的延长,FGH95合金中γ’相的晶格常数有所增加,而γ和γ’两相的晶格错配度减小;与时效时间相比,时效温度对FGH95合金中γ’相尺寸及晶格常数的影响更大.关键词:镍基粉末高温合金;长期时效;γ’相;晶格常数;......
Effects of secondary precipitation on recrystallization in Co-base superalloy DZ40M ZHAO Yang(赵 阳), WANG Lei(王 磊), YU Teng(于 腾), SONG Xiu(宋 秀) Key Laboratory for Anisotropy and Texture... on the recrystallization of directionally solidified cobalt-base superalloy DZ40M. It is found that the secondary M23C6 precipitation influences the size and shape of the recrystal grains. When the annealing......
MICROSTRUCTURE AND MECHANICAL PROPERTIES OF NOVEL 718 SUPERALLOY J.L. Qu1,X.D. Lü1,Q. Deng1,Z.Y. Zhong1,J.H. Du1,J.Y. Zhuang1 (1.Department of Superalloy, Central Iron and Steel Research Institute, Beijing 100081, China) Abstract:Recently, a novel 718 superalloy with remarkable structural stability at 680℃ has been designed and fabricated by CISRI (Central Iron and Steel Research Institute......
FGH95和Rene’95合金粉末表面成分和组织结构的分析吴承建,李景慧,冯松筠,章守华摘 要:对氩气雾化法生产的FGH95和Rene′95粉末颗粒用光学及电子显微镜,X射线能谱和俄歇谱仪等,观察和分析了合金粉末的形貌,显微组织和表面化学成分.关键词:......
大型粉末高温合金锻件热处理过程的数值模拟 吴剑涛1,国为民1 (1.钢铁研究总院,北京,100081) 摘要:测量并推算了盘件用FGH95合金的比热容等物理性能,用反推法计算了得到了热交换系数的函数计算公式,模拟计算了FGH95粉末高温合金锻件的温度和淬火应力场,并与实测值进行了对比,结果相符.计算并实测了不同冷速下FGH95合金的力学性能.本研究结果对实际热处理工艺具有实际意义. 关键词:FGH95粉末高温合金; 热处理; 数值模拟; [全文内容正在添加中] ......
: 2772-2779. [8] GUO Wei-min, WU Jian-tao, ZHANG Feng-ge, ZHAO Ming-han. Microstructure properties and heat treatment process of powder metallurgy superalloy FGH95 [J]. Journal of Iron and Steel Research... Microstructure evolution of a new directionally solidified Ni-based superalloy after long-term aging at 950 ℃ upto 1 000 h HUANG Yan1, WANG Lei1, LIU Yang1, FU Shun-ming1, WU Jian-tao2, YAN......
真空脱气预处理工艺与FGH95合金热诱导孔洞的改善和性能提高的研究 吴剑涛1,国为民1,赵明汉1,周波1,陈淦生1 (1.钢铁研究总院,高温材料研究所,北京,100081) 摘要:对比研究了高温合金粉末真空脱气预处理工艺对直接热等静压成型的FGH95粉末高温合金淬火变形量,致密度,显微组织结构和力学性能的影响. 关键词:脱气处理工艺; 粉末高温合金; 组织和性能; [全文内容正在添加中] ......
Temperature dependence of deformation mechanism in single crystal Ni-base superalloy ZHANG Xuan(张 炫), JIN Tao(金 涛), ZHAO Nai-ren(赵乃仁), WANG Zhi-hui(王志辉), SUN Xiao-feng(孙晓峰), GUAN Heng...-base superalloy was studied at various temperatures. Specimens were strained to fracture in the temperature range from 20℃ to 1000℃. σ0.2 is essentially unaffected by temperatures between 20℃ and 400......
Creep Behaviors of DA Casting and Rolling GH4169 Superalloy () 摘要:After the billet of Casting and Rolling GH4169 alloy was directly aged (DA) treated at 720℃ and 620℃, creep behavior and deformed features of the alloy were investigated by means of the measurement of creep curves and microstructure observation. Results show that the DA Casting and Rolling GH4169 Superalloy displays a lower......
Morphology and Microstructure of Sputtered Superalloy CoatingBangjie XIA+;Hanyi LOU;Lixin ZHANG, Corrosion Science Laboratory, Institute of Corrosion and Protection of Metals, Academia Sinica, Shenyang, 110015, China摘 要:<正> The morphology and microstructure of magnetron sputtered coating of superalloy K38G on cast al-loy K38G have been......
