An Optimization Method For Estimating Phase Compositions And Amounts In Two—Phase Nickel Base Superalloys

Acta Metall Sin

2005, Vol. 41

Issue (4): 363-368 DOI:

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An Optimization Method For Estimating Phase Compositions And Amounts In Two—Phase Nickel Base Superalloys

YAN Guangzong; PENG Zhifang

College of Power and Mechanical Engineering; Wuhan University; Wuhan 430072

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YAN Guangzong; PENG Zhifang. An Optimization Method For Estimating Phase Compositions And Amounts In Two—Phase Nickel Base Superalloys. Acta Metall Sin, 2005, 41(4): 363-368 .

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Abstract An optimization method was established to predict phase compositions and amounts in two--phase nickel base superalloys. Based on the compositions of alloys and their r phase, r phase compositions and r phase amounts were calculated with the use of the layered multi objective optimization algorithmic approach with tolerance. The optimization process was realized by establishing two relating objective functions and the corresponding constrained conditions. The results verified the feasibility and the accuracy of the present method.

Key words: nickel base superalloy phase composition phase amount

Received: 27 May 2004

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