基于CCD的多级时效工艺对6061铝合金性能的影响

doi:10.13251/j.issn.0254-6051.2021.10.016

金属热处理 ›› 2021, Vol. 46 ›› Issue (10): 96-100.DOI: 10.13251/j.issn.0254-6051.2021.10.016

基于CCD的多级时效工艺对6061铝合金性能的影响

段伟¹, 简思聪¹, 伍超群¹, 肖永通¹, 卢凤池¹, 李雨¹, 胡子建², 明亮²

1.广东省科学院工业分析检测中心, 广东广州 510650;
2.广东工业大学机电工程学院, 广东广州 510006

收稿日期:2021-05-03 出版日期:2021-10-25 发布日期:2021-12-08
作者简介:段伟(1991—),男,硕士,主要研究方向为金属热处理工艺、金属及金属基复合材料增材制造,E-mail:865922638@qq.com
基金资助:
国家自然基金青年基金(52001074);2020年省属科研机构改革创新领域稳定支持项目;面向汽车轻量化的高性能铝/镁合金及部件制造技术开发与产业化(1920001000412)

Effect of multi-stage aging on properties of 6061 aluminum alloy via CCD method

Duan Wei¹, Jian Sicong¹, Wu Chaoqun¹, Xiao Yongtong¹, Lu Fengchi¹, Li Yu¹, Hu Zijian², Ming Liang²

1. Center for Industrial Analysis and Testing, Guangdong Academy of Sciences, Guangzhou Guangdong 510650, China;
2. School of Electromechanical Engineering, Guangdong University of Technology, Guangzhou Guangdong 510006, China

Received:2021-05-03 Online:2021-10-25 Published:2021-12-08

摘要/Abstract

摘要： 采用中心组合设计(Central composite design, CCD)试验方法对选定温度下的6061铝合金固溶+双级时效处理工艺中的时间参数进行系统试验设计,结合力学性能测试结果得出时间参数与抗拉强度的可靠数学模型(r²=0.9078)。通过模型计算及方差分析结果可知二级时效时间对抗拉强度的影响十分显著且与抗拉强度呈负相关关系。据此得出最佳热处理工艺为550 ℃×108 min固溶+180 ℃×246 min峰时效+220 ℃×3 min二级时效,该工艺下6061铝合金的抗拉强度值为345 MPa,断后伸长率为13.5%。

关键词: 6061铝合金, 热处理, 响应曲面, 抗拉强度

Abstract: Central composite design (CCD) method was used to design the time parameters of solution and two stage aging processes for 6061 aluminum alloy, and a reliable mathematical model of the time parameters and tensile strength (r²=0.9078) was obtained in combination with the mechanical performance test results. Through calculation and analysis of variance, it can be seen that the two-step aging time has a significant effect on tensile strength and is negatively correlated with tensile strength. Based on this, the best heat treatment process consists of solid solution at 550 ℃ for 108 min, peak aging at 180 ℃ for 246 min and then two-step aging at 220 ℃ for 3 min, the tensile strength and elongation of the 6061 aluminum alloy under the process is 345 MPa and 13.5%, respectively.

Key words: 6061 aluminum, heat treatment, response surface, tensile strength

中图分类号:

TG146.2⁺1

段伟, 简思聪, 伍超群, 肖永通, 卢凤池, 李雨, 胡子建, 明亮. 基于CCD的多级时效工艺对6061铝合金性能的影响[J]. 金属热处理, 2021, 46(10): 96-100.

Duan Wei, Jian Sicong, Wu Chaoqun, Xiao Yongtong, Lu Fengchi, Li Yu, Hu Zijian, Ming Liang. Effect of multi-stage aging on properties of 6061 aluminum alloy via CCD method[J]. Heat Treatment of Metals, 2021, 46(10): 96-100.

参考文献

[1]Miller W S, Zhuang L, Bottema J, et al. Recent development in aluminium alloys for the automotive industry[J]. Materials Science and Engineering A, 2000, 280(1): 37-49.
[2]Xu J J, Pan Y, Lu T, et al. Synergistic effects of composition and heat treatment on micro-structure and properties of vacuum die cast Al-Si-Mg-Mn alloys[J]. China Foundry, 2018, 15(2): 117-123.
[3]潘道召, 王芝秀, 李海, 等. 双级时效对6061铝合金拉伸性能和晶间腐蚀性能的影响[J]. 中国有色金属学报, 2010, 20(3): 435-441.
Pan Daozhao, Wang Zhixiu, Li Hai, et al. Effects of two-step ageing treatment on tensile properties and intergranular corrosion of 6061 aluminum alloy[J]. Transactions of Nonferrous Metals Society of China, 2010, 20(3): 435-441.
[4]Ranganatha R, Kumar V A, Nandi V S, et al. Multi-stage heat treatment of aluminum alloy AA7049[J]. Transactions of Nonferrous Metals Society of China, 2013, 23(6): 1570-1575.
[5]Wang Y, Liu M, Xiao W, et al. Effects of multi-stage aging treatments on the precipitation behavior and properties of 7136 aluminum alloy[J]. Journal of Alloys and Compounds, 2020, 814: 152256.
[6]Zhang Z, Deng Y, Ye L, et al. Influence of aging treatments on the strength and localized corrosion resistance of aged Al-Zn-Mg-Cu alloy[J]. Journal of Alloys and Compounds, 2020, 846: 156223.
[7]Zaid H R, Hatab A M, Ibrahim A M A. Properties enhancement of Al-Zn-Mg alloy by retrogression and re-aging heat treatment[J]. Journal of Mining and Metallurgy, 2011, 47(1): 31-35.
[8]Ferrer C P, Koul M G, Connolly B J, et al. Improvements in strength and stress corrosion cracking properties in aluminum alloy 7075 via low-temperature retrogression and re-aging heat treatments[J]. Corrosion, 2003, 59(6): 114-145.
[9]Park J K. Influence of retrogression and re-aging treatments on the strength and stress corrosion resistance of aluminium alloy 7075-T6[J]. Materials Science and Engineering A, 1988, 103(2): 223-231.
[10]Peng Guosheng, Chen Kanghua, Chen Songyi, et al. Influence of repetitious-RRA treatment on the strength and SCC resistance of Al-Zn-Mg-Cu alloy[J]. Materials Science and Engineering A, 2011, 528(12): 4014-4018.
[11]Su R M, Qu Y D, Li R D, et al. Influence of RRA treatment on the microstructure and stress corrosion cracking behavior of the spray-formed 7075 alloy[J]. Materials Science, 2015, 51(3): 372-380.
[12]祝向群, 卢锦德. 多级时效对新型高强铸造铝合金组织和性能的影响[J]. 现代机械, 2011(1): 82-83.
Zhu Xiangqun, Lu Jinde. Effects of multistage aging treatment on microstructures and properties of new high strength cast aluminum alloy[J]. Modern Machinery, 2011(1): 82-83.
[13]Montgomery D C. Design and Analysis of Experiments[M]. New York:Wiley and Sons, America, 1976.
[14]Woo K D, Lee J S, Kim S W. Calumet investigation of precipitation kinetics in Al-Mg-Si-X(Cr, Be) alloys[J]. Metals and Materials, 1999, 5(4): 363-368.

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基于CCD的多级时效工艺对6061铝合金性能的影响

Effect of multi-stage aging on properties of 6061 aluminum alloy via CCD method

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