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((b)~(m)) of FGH96 powder mapped by EPMA 图4 热等静压态合金的显微组织 Fig. 4 Microstructures of as-HIPed superalloys 采用EPMA对热等静压态的FGH96合金样品PPB处进行了分析,其结果如图5所示.图5(a)所示为EPMA采集处的BSE照片.由于外界的氧会带入合金中,因此,本实验... precipitation in P/M superalloys[J]. Powder Metallurgy Industry, 2010, 20(4): 43-49. [11] 张 莹, 刘明东, 孙志坤, 张译文. 颗粒间断裂在P/M镍基高温合金低周疲劳断口上的特征[J]. 中国有色金属学报, 2013, 23(4): 987-996. ZHANG Ying, LIU Ming-dong, SUN Zhi-kun......
:The status of research, development of superalloys and materials processing & fabrication technologies for aero-engine applications in China Aviation Industry, with an emphasis on recent achievements at BIAM including directionally solidified and single crystal superalloys for blade and vane applications, wrought superalloys for aero-engine disks and rings, and powder metallurgy (PM) superalloys......
Portevin-Le Chatelier effect in wrought Ni-based superalloys:Experiments and mechanismsChuanyong Cui,Rui Zhang,Yizhou Zhou,Xiaofeng SunInstitute of Metal Research, Chinese Academy of Sciences摘 要... serrated yielding in the temporal domain and strain localization in the spatial domain. Wrought Ni-based superalloys often exhibit the PLC effect. To guarantee the safe and stable operation......
变形高温合金和等轴晶铸造高温合金材料与应用基础理论研究郭建亭1(1.辽宁省沈阳市科学院科学院金属研究所)摘 要:综述了变形高温合金和等轴晶铸造高温合金研制过程中的有关应用基础理论,主要涉及3个方面:变形高温合金和微量元素的作用机理;等轴晶铸造高温合金和蠕变机理研究;抗热腐蚀高温合金和新相变的发现及蠕变疲劳环境交互作用. 关键词:变形高温合金; 等轴晶铸造高温合金; 微量元素作用机理; 蠕变机理; 相变......
Oxidation behaviors of wrought nickel-based superalloys in various high temperature environments Changheui JANG1, Daejong KIM1, 2, Donghoon KIM1, Injin SAH1, Woo-Seog RYU2, Young-sung YOO3 1... by the oxidation behaviors, surface treatment methods to enhance oxidation resistance of these alloys should be developed. Key words: oxidation; nickel-based superalloys; very high temperature reactor (VHTR......
Zhuang-qi2 1. School of Materials Science and Engineering, Jiangsu University of Science and Technology,Zhenjiang 212003, China; 2. Department of Superalloys, Institute of Metal Research, Chinese Academy... and 39.6% Nb in average,. These influences on the cast microstructure can be attributed to the atomic size effects of Zr and Y. Key words: yttrium; zirconium; carbides; nickel based superalloys......
Microstructures and Creep Behavior of a Directionally Solidified NiAl-Fe(Nb) Multiphase Intermetallic AlloyYihui QI, Jianting GUO and Chuanyong GUIDepartment of Superalloys, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China摘 要:<正> The microstructure and creep behavior of a DS NiAI-Fe(Nb) multiphase intermetallic......
lifetime. Key words: single crystal; nickel-based superalloys; cavity morphology; FEM analysis; stress distribution; creep lifetime 单晶镍基合金由于具有高体积分数的γ?相及良好的高温性能,已被广泛用于制备航空发动机的叶片部件.研究表明[1-2]:单晶合金的γ?相在蠕变期间发...-feng, STEIN M P. Experimental and finite element study of void growth in nickel-base single crystal superalloys[J]. Rare Metal Materials and Engineering, 2006, 35(1): 39-42. [5] 于庆民, 岳珠峰. 镍基单晶合金中空穴绕夹杂形核......
by the evolution of antisite atoms and ternary additions in the centre part of L12 phase. Key words: nickel based superalloys; Ni75Al7.5V17.5 alloy; phase transformation; micro-phase field; grain..., 1994, 42: 1733-1738. [9] KITASHIMA T, YOKOKAWA T,YEH A C, HARADA H. Analysis of element-content effects on equilibrium segregation at γ-γ′ interface in Ni-base superalloys using the cluster variation......