| An Optimization Method For Estimating Phase Compositions And Amounts In Two—Phase Nickel Base Superalloys |
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| 引用本文： | 阎光宗,彭志方. An Optimization Method For Estimating Phase Compositions And Amounts In Two—Phase Nickel Base Superalloys[J]. 金属学报, 2005, 41(4): 363-368 |
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| 作者姓名： | 阎光宗 彭志方 |
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| 作者单位： | 武汉大学动力与机械学院,武汉,430072 |
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| 摘 要： | 根据已知镍基合金成分和γ′相成分，运用分层宽容多目标优化法，分别计算了γ相成分及γ′相含量．优化测算过程的实现是通过建立使杠杆定律等式两端数值差最小和两相共格错配度最小的目标函数，并通过设置γ′相含量和基体相成分取值范围的约束条件而实现的．验证了该方法的可行性和准确性．
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| 关 键 词： | 镍基合金 相成分 相含量 多目标最优化 |
| 文章编号： | 0412-1961(2005)04-0363-06 |
| 收稿时间： | 2004-05-27 |
| 修稿时间： | 2004-09-14 |
AN OPTIMIZATION METHOD FOR ESTIMATING PHASE COMPOSITIONS AND AMOUNTS IN TWO-PHASE NICKEL BASE SUPERALLOYS |
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| YAN Guangzong,PENG Zhifang. AN OPTIMIZATION METHOD FOR ESTIMATING PHASE COMPOSITIONS AND AMOUNTS IN TWO-PHASE NICKEL BASE SUPERALLOYS[J]. Acta Metallurgica Sinica, 2005, 41(4): 363-368 |
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| Authors: | YAN Guangzong PENG Zhifang |
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| Affiliation: | College of Power and Mechanical Engineering, Wuhan University, Wuhan 430072 |
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| Abstract: | An optimization method was established to predict phase compositions andamounts in two--phase nickel base superalloys. Based on the compositionsof alloys and their r phase, r phase compositions andr phase amounts were calculated with the use of the layeredmulti objective optimization algorithmic approach with tolerance. Theoptimization process was realized by establishing two relating objectivefunctions and the corresponding constrained conditions.The results verified the feasibility and the accuracy ofthe present method. |
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| Keywords: | nickel base superalloy phase composition phase amount multi objective optimization algorithm |
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