| 曲面法优化超高强度钢的淬火工艺参数 |
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| 引用本文： | 周杰,李世云,李崇,尚欣,李慧.曲面法优化超高强度钢的淬火工艺参数[J].重庆大学学报(自然科学版),2013,36(5):37-43. |
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| 作者姓名： | 周杰 李世云 李崇 尚欣 李慧 |
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| 作者单位： | 重庆大学 材料科学与工程学院,重庆,400044 |
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| 基金项目： | 重庆市自然科学基金重点项目(CSTC2009BA4065) |
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| 摘 要： | 为获得超高强度钢22MnB5热成形过程中最佳的淬火工艺参数,采用正交实验设计法进行实验设计,并采用响应曲面法对实验结果进行优化分析.选择奥氏体化温度和保温时间作为优化因子,研究各因子对淬火硬度和抗拉强度的影响.先对淬火硬度以及抗拉强度进行了单目标优化,获得了单目标最优值,再结合理想点法对各目标进行了多目标优化,获得全局最优值.最后从微观角度对优化结果展开了探讨,进一步验证了预测模型的可靠性.
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| 关 键 词： | 热成形 超高强度钢 淬火 曲面响应法 优化 |
Optimization of quenching parameters for ultra high strength steel using response surface method |
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| ZHOU Jie,LI Shiyun,LI Chong,SHAN Xin and LI Hui.Optimization of quenching parameters for ultra high strength steel using response surface method[J].Journal of Chongqing University(Natural Science Edition),2013,36(5):37-43. |
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| Authors: | ZHOU Jie LI Shiyun LI Chong SHAN Xin and LI Hui |
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| Institution: | College of Materials Science and Engineering,Chongqing University,Chongqing 400044,China;College of Materials Science and Engineering,Chongqing University,Chongqing 400044,China;College of Materials Science and Engineering,Chongqing University,Chongqing 400044,China;College of Materials Science and Engineering,Chongqing University,Chongqing 400044,China;College of Materials Science and Engineering,Chongqing University,Chongqing 400044,China |
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| Abstract: | In order to optimize the quenching parameters of ultra high strength steel 22MnB5,orthogonal experimental design method is applied to design the experiments and response surface methodology (RSM) is used to analyze the experimental results. Austenitizing temperature and soaking time are taken as the optimization factors. The effect of these factors on quenching hardness and elongation are investigated. The optimization results of each single objective are firstly obtained. Then,ideal point method is used to find the solution to the multi-objective programming,and global optimums are gained. Finally,the optimal results are discussed from the microstructure angle and the reliability of the prediction models is demonstrated. |
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| Keywords: | hot stamping ultra high strength steel quenching response surface method optimization |
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