本文關鍵詞：固溶時效工藝對6016鋁合金力學性能的影響及多目標優(yōu)化　出處：《工程科學學報》2017年01期 　論文類型：期刊論文

  更多相關文章： 鋁合金 固溶時效 力學性能 多目標優(yōu)化

【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(shù)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(shù)進行多目標優(yōu)化,經過計算后獲得非劣解,從中可篩選出使目標函數(shù)較好的解與相對的固溶-時效工藝參數(shù).
[Abstract]:As part of the heat treatment process of 6XXX aluminum alloy, the mechanical properties of 6016 aluminum alloy were significantly affected by solid solution treatment and aging treatment. In this paper, the solution temperature, time and aging temperature of 6016 aluminum alloy were studied. Time is taken as the design variable, and the experimental scheme of solid solution-aging is designed by using the central combination experimental design method. The yield strength of the sample is measured at room temperature. Elongation and Vickers hardness. The second generation non-dominant sorting genetic algorithm (NSGA- 鈪，

本文編號：1437581