SOLIDIFICATION OF NICKEL-BASED SINGLE CRYSTAL SUPERALLOY BY ELECTRIC FIELD

Abstract

Abstract: The crystal growth of a nickel-based single crystal superalloy DD3 was researched via controlled directional solidification under the action of a DC electric field. The cellular or dendrite spacing of the single crystal superalloy is refined and microsegregation of alloying elements Al, Ti, Mo and W, is reduced by the electric field. The electric field decreases the interface stability and reduces the critical growth rate of the cellular-dendritic translation because of Thomson effect and Joule heating. The precipitation of the γ' phase is more uniform and the size of the γ' phase is smaller with the electric field than that without the electric field.

Key words: single crystal superalloy, DC electric field, crystal growth

Y.S. Yang, X.H. Feng, G.F. Cheng, Y.J. Li , Z.Q. Hu. SOLIDIFICATION OF NICKEL-BASED SINGLE CRYSTAL SUPERALLOY BY ELECTRIC FIELD[J]. Acta Metallurgica Sinica (English Letters), 2005, 18(6): 679-685 .

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[8]	Z.F. Yue and Z.Z. Lu(Department of Engineering Mechanics, Northwestern Polytechnical University, Xi'an 710072, China )Manuscript received. RAFTING PREDICTION CRITERION FOR NICKEL-BASE SINGLE CRYSTALS UNDER MULTIAXIAL STRESSES AND CRYSTALLOGRAPHIC ORIENTATION DEPENDENCE OF CREEP BEHAVIOR [J]. Acta Metallurgica Sinica (English Letters), 1999, 12(2): 149-154.
[9]	Author X.A. Zhang1), H.Q. Xia1), Z.T. Wu1), Y.F. Han1), R. Shi2) and G.X. Hu2) \= 1) Mechanical Properties Laboratory, Beijing Institute of Aeronautical Materials, Beijing 100095,China2) The State Education Commission Open Research Laboratory for High Temperature. STUDY ON THE THREESTAGE CREEP OF THE DD3SINGLE CRYSTAL SUPERALLOY [J]. Acta Metallurgica Sinica (English Letters), 1999, 12(1): 116-123.
[10]	Author C.D. Zhou1,2), J.X. Yu1), X.P. Dong1), Y.H. Zhang1), C.Q. Sun3) and T.F. Li4) 1) The State Education Commission Open Research Laboratory for High Temperature Materials and Testing, Shanghai Jiao Tong University, Shanghai 200030, China2) Shanghai Enhanced Lab of Ferrometallurgy, Shanghai University, Shanghai 200072, China3) Institute of Aeronautical Materials, Beijing 100095, China 4) Institute of Corrosion and Protection of Metals, The Chinese Academy of Sciences, Shenyang 110015, ChinaManuscript received 18 October 1998. HIGH TEMPERATURE TENSILE FRACTURE BEHAVIOR OF ORIENTED DD100 SINGLE CRYSTAL SUPERALLOY [J]. Acta Metallurgica Sinica (English Letters), 1999, 12(1): 124-129.
[11]	LU Ke;WANG Jingtang, National Laboratory of RSA, Institute of Metal Research, Academia Sinica, Shenyang, China LU Ke, Associate Professor, Institute of Metal Research, Academia Sinica, Shenyang 110015, China. A MATHEMATICAL EXPRESSION OF CRYSTAL GROWTH RATE DURING CRYSTALLIZATION OF AMORPHOUS ALLOYS [J]. Acta Metallurgica Sinica (English Letters), 1992, 5(7): 33-37.
[12]	LIU Lin FU Hengzhi SHI Zhengxing Northwestern Polytechnical University,Xi'an,China Dr.LIU Lin Lecturer,Department of Applied Physics,Northwestern Polytechnical University,Xi'an 710072,China. RELATIONSHIP BETWEEN PRIMARY MORPHOLOGY AND CRYSTAL STRUCTURE OF CARBIDES GROWING IN SUPERALLOYS [J]. Acta Metallurgica Sinica (English Letters), 1990, 3(1): 46-51.
[13]	JIANG Xishan GONG Yansheng ZHANG Guichang Research Institute of Qiqihar Steel Works.Qiqihar,Heilongjiang,China. MORPHOLOGY OF(Mn,Fe)S SINGLE CRYSTAL GROWTH IN CAST STEEL [J]. Acta Metallurgica Sinica (English Letters), 1989, 2(1): 77-80.

SOLIDIFICATION OF NICKEL-BASED SINGLE CRYSTAL SUPERALLOY BY ELECTRIC FIELD

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