固溶時效工藝對6016鋁合金力學性能的影響及多目標優化

馬嚴瑋; 王寶雨; 校文超; 周靖; 康藝

doi:10.13374/j.issn2095-9389.2017.01.010

固溶時效工藝對6016鋁合金力學性能的影響及多目標優化

doi: 10.13374/j.issn2095-9389.2017.01.010

北京科技大學機械工程學院, 北京 100083

基金項目:

國家自然科學基金資助項目（U1564202）；北京市科技發展基金資助項目（D151100003515002）

詳細信息

中圖分類號: TG146.2⁺1
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出版歷程
- 收稿日期: 2016-09-29

Effect of solution and aging processes on the mechanical properties of 6016 aluminum alloy and multi-objective optimization

School of Mechanical Engineering, University of Science and Technology Beijing, Beijing 100083, China

摘要

摘要: 作為6XXX鋁合金熱處理工藝的一部分，固溶處理與時效處理對6016鋁合金的力學性能有顯著影響.本文把固溶溫度、時間和時效溫度、時間作為設計變量，應用中心組合實驗設計法設計固溶-時效實驗方案，在室溫下分別測出試樣的屈服強度、伸長率和維氏硬度.第二代非支配排序遺傳算法（NSGA-Ⅱ）解決了第一代算法參數選取難、運行效率低等缺點.本文用第二代非支配排序遺傳算法把得到的響應面方程作為目標函數進行多目標優化，經過計算后獲得非劣解，從中可篩選出使目標函數較好的解與相對的固溶-時效工藝參數.
- 鋁合金 /
- 固溶時效 /
- 力學性能 /
- 多目標優化
Abstract: As a part of heat treatment processes, solution treatment and aging treatment have a great influence on the mechanical properties of 6016 aluminum alloy. In this article, solution temperature, solution time, aging temperature and aging time were taken as parameters to design a heat treatment scheme by central composite design (CCD). At room temperature, the yield strength, elongation, and Vickers hardness of specimens were measured by mechanical testing. The second-generation non-dominated sorting genetic algorithm (NSGA-Ⅱ) solves the shortcomings of the first-generation algorithm, such as the difficulty in parameter selection and low efficiency. In this study, the response surface model derived was used as the objective function to perform the multi-objective optimization by means of NSGA-Ⅱ. After calculation, the Pareto solutions were obtained to filtrate out the solution with comprehensive performance, and then, to acquire the corresponding parameters of the solution and aging process.
- aluminum alloys /
- solution and aging /
- mechanical properties /
- multi-objective optimization

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參考文獻(14)

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