(1. 北京交通大學 機械與電子控制工程學院，北京 100044；
2. 金輪天大數(shù)控機床有限公司，天津 301709；
3. 天津職業(yè)技術師范大學 機械工程學院，天津 300222；
4. 中色(天津)有色金屬有限公司，天津 300393)
摘 要: GW01鋁合金是在6061鋁合金基礎上研發(fā)的一種新型高強鋁合金。采用三因素三水平的正交實驗，研究了固溶溫度-時間、時效溫度、時效時間三因素對GW01鋁合金T6處理后力學性能的影響規(guī)律。結果表明：隨著固溶溫度的提高和固溶時間的縮短，GW01鋁合金的抗拉強度、屈服強度和硬度均有大幅度提高，其伸長率則先降低后升高；隨著時效溫度的升高，GW01鋁合金的抗拉強度、屈服強度、硬度以及伸長率均不斷降低；GW01鋁合金的抗拉強度、屈服強度以及硬度均對時效時間不敏感，隨時效時間的延長只有小幅度的降低，其伸長率則隨時效時間的延長有一定幅度的提高。(510 ℃，3 h，水淬)+(170 ℃，18 h，空冷)的T6熱處理可以使GW01鋁合金管材獲得良好的綜合力學性能。
關鍵字: GW01鋁合金；固溶處理；時效處理；力學性能；正交試驗
（1. School of Mechanical, Electronic and Control Engineering, Beijing Jiaotong University, Beijing 100044, China;
2. Jinluntianda CNC Machine Tool Co., Ltd., Tianjin 301709, China;
3. School of Mechanical Engineering, Tianjin University of Technology and Education, Tianjin 300222, China;
4. China Nonferrous Metals Mining (Group) Tianjin Co., Ltd., Tianjin 300393, China）
Abstract:GW01 aluminum alloy is a new type of high-strength aluminum alloys researched and developed based on 6061 aluminum alloy. The effects of solid solution temperature-time, aging temperature and aging time on mechanical properties of GW01 aluminum alloy after T6 treatment were investigated by orthogonal experiment of three factors and three levels. The results show that, with the solution temperature increasing and solution time decreasing, the tensile strength, yield strength and hardness of GW01 aluminum alloy are improved greatly, and the elongation increases after a certain amount of decline. With the aging temperature increasing, the tensile strength, yield strength, hardness and elongation of GW01 aluminum alloy decrease constantly. The tensile strength, yield strength and hardness of GW01 aluminum alloy are all insensitive to aging time, which means that they only decreases a little with aging time extending. The elongation increases with aging time extending. The good mechanical properties of GW01 aluminum alloy pipe are obtained after T6 treatment process of (510 ℃, 3 h, water quenching)+(170 ℃, 18 h, air cooling).
Key words: GW01 aluminum alloy; solid solution treatment; aging treatment; mechanical property; orthogonal experiment
