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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......
="ChDivSummary" name="ChDivSummary">The effects of electric-field treatment on the microstructure and deformation behavior of a nickel-base superalloy were summarized.The results show that the electric-field treatment increases the ductility of the superalloy but has no evident influence on its static strength at both room and elevated temperatures,while,the strength increases but elongation changes......
Solidification microstructure of directionally solidified superalloy under high temperature gradientZHANG Weiguoa, and LIU Linb a College of Mechanical & Electronic Engineering, Northwest...="ChDivSummary">The effect of solidification rate on the microstructure development of nickel-based superalloy under the temperature gradient of 500 K·cm-1 was studied. The results show......
Broaching Performance of Superalloy GH4169 Based on FEMXiangwei Kong, Bin Li, Zhibo Jin and Wenran Geng (School of Mechanical Engineering & Automation, Northeastern University, Shenyang 110004, China)摘 要:The nickel-based superalloy GH4169 is an important material for high temperature applications in the aerospace industry. However, due to its poor......
