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Oxidation behavior of Ni(Co)CrAlYHf(Si) coatings on DS superalloy at 1 150 ℃ Huang Zhao-hui(黄朝晖), Tan Yong-ning(谭永宁), Zhao Xi-hong(赵希宏), LI Jian-ping (李建平), ZHANG Qiang(张 强) National... Ni(Co)CrAlY coatings were deposited by EB-PVD method on a DS superalloy of Ni-Al-Cr-Co-W-Mo-Ta-Hf system. SEM, XEDS and XRD were used to study the oxidation behavior of the coatings. The two coatings......
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Morphological evolution of γ′ phase in K465 superalloy during thermal fatigue Yang Jin-xia(杨金侠)1,2, Zheng Qi(郑 启)1, Sun Xiao-feng(孙晓峰)1, Guan Heng-rong(管恒荣)1, Hu Zhuang-qi(胡壮麒)1 1.Institute... Abstract: The alternative heating/cooling cycles(thermal fatigue)of K465 superalloy were carried out. The specimens were held at 1 050 ℃ for 300 s, then quenched into 20 ℃ recycling water for 10 s......
Effect of solidification rate on MC-type carbide morphology in single crystal Ni-base superalloy AM3 YU Zhu-huan (余竹焕)1, 2 , LIU Lin(刘 林)1, ZHAO Xin-bao(赵新宝)1, ZHANG Wei-guo(张卫国)1, ZHANG Jun(张 军... carbide in single crystal superalloy AM3 was systematically investigated with sample growth rates from 3.5 μm/s to 500 μm/s. The carbide morphologies were investigated by scanning electron microscopy (SEM......
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properties of a spray-formed superalloy were studied in this paper. Based on a better understanding of the microstructural evolution of the spray-formed superalloy during solution treatment, an optimum... superalloy were evaluated using ageing harden curves and tensile testing. The results indicated that the maximum hardness value was achieved at 850 °C for 8 h, AC. Due to co-precipitation of primary......
Structure and Mechanical Properties of Ni-based Porous Superalloy米国发School of Materials Science and Engineering,Henan Polytechnic University摘 要:The porous superalloy materials with hollow spherical and oriented linear pores were fabricated by means of powder metallurgy using Ni-based superalloy powders. Structure observation revealed that the pores......
Investigation of Y2O3 Particle Doped on Superalloy by Laser Irradiation孟庆林,邹宇超,徐万仁,何永峰,战效文,国玉军摘 要:<正> Possibility to dope Y2O3 particles into the sur-face of superalloy sample by means of laserirradiation and the relationship betweenhomogeneity and laser irradiation parameters havebeen investigated.The results show that homoge-neous distribution......