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A NEW METHOD TO PREDICT THE PRECIPITATION OF σ—PHASE IN NICKEL-BASE SUPERALLOYS——THERMODYNAMICS EQUILIBRIUM CALCULATION |
ZHU Ping NI Kequan CHEN Guoliang (Beijing University of Science and Technology) |
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Cite this article:
ZHU Ping NI Kequan CHEN Guoliang (Beijing University of Science and Technology). A NEW METHOD TO PREDICT THE PRECIPITATION OF σ—PHASE IN NICKEL-BASE SUPERALLOYS——THERMODYNAMICS EQUILIBRIUM CALCULATION. Chin J Mater Res, 1989, 3(3): 210-214.
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Abstract For a free-cobalt Ni-base alloy,it is considered that thematrix is composed of Ni,Cr,Mo and Al,and the σ-phase is composed of Ni,Cr and Mo.Power series model was chosen to express the free energy.Bytreating experimental diagram with data optimum programme
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Received: 25 June 1989
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