淬火水温及深冷处理对超高强Al-Zn-Mg-Cu合金组织及性能的影响

doi:10.13251/j.issn.0254-6051.2024.04.031

金属热处理 ›› 2024, Vol. 49 ›› Issue (4): 195-200.DOI: 10.13251/j.issn.0254-6051.2024.04.031

淬火水温及深冷处理对超高强Al-Zn-Mg-Cu合金组织及性能的影响

马志锋^1,2, 王海龙^1,2, 赵唯一^1,2, 付祎磊^1,2, 陆政^1,2

1.中国航发北京航空材料研究院铝合金研究所, 北京 100095;
2.中国航发北京航空材料研究院北京市先进铝合金材料及应用工程技术研究中心, 北京 100095

收稿日期:2023-11-03 修回日期:2024-03-14 出版日期:2024-04-25 发布日期:2024-05-27
作者简介:马志锋(1977—),男,高级工程师,硕士,主要研究方向为铝合金材料及其工艺,E-mail:Zhifengma@163.com

Effects of quenching water temperature and cryogenic treatment on microstructure and mechanical properties of ultra-high strength Al-Zn-Mg-Cu alloy

Ma Zhifeng^1,2, Wang Hailong^1,2, Zhao Weiyi^1,2, Fu Yilei^1,2, Lu Zheng^1,2

1. Institute of Aluminum Alloy, AECC Beijing Institute of Aeronautical Materials, Beijing 100095, China;
2. Beijing Engineering Research Center of Advanced Aluminum Alloys and Applications, AECC Beijing Institute of Aeronautical Materials, Beijing 100095, China

Received:2023-11-03 Revised:2024-03-14 Online:2024-04-25 Published:2024-05-27

摘要/Abstract

摘要： 研究了淬火介质(水)温度和深冷处理对Al-Zn-Mg-Cu合金的后续时效微观组织和力学性能的影响。结果表明,Al-Zn-Mg-Cu合金时效前增加深冷处理对强度影响较小,但是可以提升合金的断后伸长率。不同水温淬火影响Al-Zn-Mg-Cu合金的力学性能,室温水淬时合金经固溶+时效后的力学性能最好,抗拉强度为720 MPa,断后伸长率为7.70%,断裂韧度为32.37 MPa·m^1/2,经固溶+深冷+时效后的塑性提升,断后伸长率增加到8.90%,断裂韧度增加到36.61 MPa·m^1/2。深冷处理不改变合金时效过程中析出相的种类,仍然为η′相,但会使η′相数量增加,分布更加均匀弥散,晶界处的析出相间距也增大并呈断续分布的状态。深冷处理能够使合金的断裂韧度更加稳定,降低合金因为淬火水温不同对性能的影响。

关键词: Al-Zn-Mg-Cu合金, 超高强铝合金, 淬火水温, 深冷处理, 应力消除

Abstract: Effects of the quenching water temperature and cryogenic treatment on the subsequent aged microstructure and mechanical properties of Al-Zn-Mg-Cu alloy were investigated. The results show that the addition of cryogenic treatment before aging has little effect on the strength of the Al-Zn-Mg-Cu alloy, but it can enhance the elongation after fracture. Different water temperatures for quenching affects the mechanical properties of the Al-Zn-Mg-Cu alloy, of which the best mechanical properties after the solution treatment and aging can be achieved by room temperature water quenching, as the tensile strength is 720 MPa, the elongation after fracture is 7.70% and the fracture toughness is 32.37 MPa·m^1/2. Moreover, after the solution treatment+cryogenic treatment+aging, the elongation after fracture increases to 8.90% and the fracture toughness increases to 36.61 MPa·m^1/2. The addition of cryogenic treatment does not change the precipitated phase type of the alloy, which is still η′ phase, but it can increase the number of η′ phase and make its distribution more uniform and dispersed, and increase the inter-spacing of precipitated phase at the grain boundary and make it distributed discontinuously. The cryogenic treatment can stabilize the fracture toughness of the alloy and reduce the effect of temperature difference of the quenching medium on the mechanical properties of the alloy.

Key words: A1-Zn-Mg-Cu alloy, ultra-high strength aluminum alloy, quenching water temperature, cryogenic treatment, stress relief

中图分类号:

TG166.3

马志锋, 王海龙, 赵唯一, 付祎磊, 陆政. 淬火水温及深冷处理对超高强Al-Zn-Mg-Cu合金组织及性能的影响[J]. 金属热处理, 2024, 49(4): 195-200.

Ma Zhifeng, Wang Hailong, Zhao Weiyi, Fu Yilei, Lu Zheng. Effects of quenching water temperature and cryogenic treatment on microstructure and mechanical properties of ultra-high strength Al-Zn-Mg-Cu alloy[J]. Heat Treatment of Metals, 2024, 49(4): 195-200.

参考文献

[1]王淑慧, 王珊, 隋信举, 等. 7A75铝合金板材厚度方向的微观结构及性能[J]. 金属热处理, 2020, 45(9): 191-194.
Wang Shuhui, Wang Shan, Sui Xinju, et al. Microstructure evolution and mechanical properties at different thickness of 7A75 aluminum alloy plate[J]. Heat Treatment of Metals, 2020, 45(9): 191-194.
[2]Dursun T, Soutis C. Recent developments in advanced aircraft aluminium alloys[J]. Materials and Design, 2014, 56: 862-871.
[3]王少华, 马志峰, 张显峰, 等. 7A99铝合金锻件双级时效组织性能[J]. 航空材料学报, 2018, 38(1): 54-59.
Wang Shaohua, Ma Zhifeng, Zhang Xianfeng, et al. Microstructure and properties of 7A99 aluminum alloy forging after two-step aging treatment[J]. Journal of Aeronautical Materials, 2018, 38(1): 54-59.
[4]唐丽娜, 郭立杰, 张天德. 航天典型材料与构件的热处理技术研究与应用[J]. 金属热处理, 2018, 43(1): 1-5.
Tang Lina, Guo Lijie, Zhang Tiande. Research and application of heat treatment technology for aerospace materials and components[J]. Heat Treatment of Metals, 2018, 43(1): 1-5.
[5]李红英, 程勇胜, 郑子樵. 时效制度对7475铝合金挤压件组织与性能的影响[J]. 中南工业大学学报, 2001, 32(4): 394-397.
Li Hongying, Cheng Yongsheng, Zheng Ziqiao. Effects of aging on microstructure and properties of 7475 alloy extrusions[J]. Journal of Central South University of Technology, 2001, 32(4): 394-397.
[6]Fridlyander I N. Laws of variation of properties of aluminum alloys during aging[J]. Metal Science and Heat Treatment, 2003, 45(9/10): 337-340.
[7]刘胜胆, 张新明, 黄振宝. 淬火速率对7055铝合金组织和力学性能的影响[J]. 材料科学与工艺, 2008, 16(5): 650-653.
Liu Shengdan, Zhang Xinming, Huang Zhenbao. Effects of quenching rates on microstructure and mechanical properties of 7055 aluminum alloy[J]. Materials Science and Technology, 2008, 16(5): 650-653.
[8]Thompson D S, Subramanya B S, Levy S A. Quench rate effects in Al-Zn-Mg-Cu alloys[J]. Metallurgical Transactions, 1971, 2(4): 1149-1160.
[9]Deschamps A, Bréchet Y. Influence of quench and heating rates on the ageing response of an Al-Zn-Mg-(Zr) alloy[J]. Materials Science and Engineering A, 1998, 251(1/2): 200-207.
[10]Deschamps A, Brechet Y. Nature and distribution of quench-induced precipitation in an Al-Zn-Mg-Cu alloy[J]. Scripta Materialia, 1998, 39(11): 1517-1522.
[11]Dumont D, Deschamps A, Bréchet Y, et al. Characterisation of precipitation microstructures in aluminium alloys 7040 and 7050 and their relationship to mechanical behaviour[J]. Materials Science and Technology, 2004, 20(5): 567-576.
[12]Bryant A T. The effect of composition upon the quench-sensitivity of some Al-Zn-Mg alloy[J]. Journal of the Institute of Metals, 1966, 94: 94-99.
[13]Engler O, Sachot E, Ehrström J C, et al. Recrystallisation and texture in hot deformed aluminium alloy 7010 thick plates[J]. Materials Science and Technology, 1996, 12(9): 717-729.
[14]刘轩之, 翁泽钜, 王凯凯, 等. 深冷处理对7050 铝合金尺寸稳定性及断裂韧性的影响[J]. 金属热处理, 2019, 44(9): 103-107.
Liu Xuanzi, Wen Zeju, Wang Kaikai. et al. Effect at cryogenic treatment on dimensional stability and fracture toughness of 7050 aluminum alloy[J]. Heat Treatment of Metals, 2019, 44(9): 103-107.
[15]刘轩之, 顾开选, 翁泽钜, 等. 铝合金深冷处理研究进展[J]. 材料导报, 2020, 34(3): 178-183.
Liu Xuanzi, Gu Kaixuan, Wen Zeju, et al. A review on deep cryogenic treatment of aluminium alloy[J]. Materials Reports, 2020, 34(3): 178-183.
[16]钱士强, 李曼萍. 深冷处理对Al-Cu合金时效的影响[J]. 金属热处理, 2001, 26(12): 28-31.
Qian Shiqiang, Li Manping. Influence of cryogenic treatment on ageing process for supersaturated aluminum-copper alloy[J]. Heat Treatment of Metals, 2001, 26(12): 28-31.
[17]王磊. 基于深冷处理的金属材料残余应力消除试验研究[J]. 新技术新工艺, 2020(1): 40-44.
Wang Lei. Research on experiment of residual stress elimination of metal materials based on cryogenic treatment[J]. New Technology and New Process, 2020(1): 40-44.
[18]Yang J, Ou B. Influence of microstructure on the mechanical properties and stress corrosion susceptibility of 7050 Al-alloy[J]. Scandinavian Journal of Metallurgy, 2001, 30: 158-167.
[19]华明建, 李春志, 王鸿渐. 微观组织对7075铝合金的屈服强度和抗应力腐蚀性能的影响[J]. 金属学报, 1988, 24(1): 41-46.
Hua Mingjian, Li Chunzhi, Wang Hongjian. Effect of microstructures on the yield strength and SCR of 7075 aluminium alloy[J]. Acta Metallurgica Sinica, 1988, 24(1): 41-46.
[20]Scamans G M, Alani R, Swann P R. Pre-exposure embrittlement and stress corrosion failure in Al-Zn-Mg alloys[J]. Corrosion Science, 1976, 16(7): 443-459.
[21]Wloka J, Hack T, Virtanen S. Influence of temper and surface condition on the exfoliation behaviour of high strength Al-Zn-Mg-Cu alloys[J]. Corrosion Science, 2007, 49(3): 1437-1449.
[22]Synecˇek V, Simmerska M, Bartuška P, et al. Structure of the grain boundary region in an Al-15at.%Zn and Al-2.0at.%Zn-1.3at.%Mg alloy aged at elevated temperatures[J]. Crystal Research and Technology, 1983, 18(10): 1261-1276.

淬火水温及深冷处理对超高强Al-Zn-Mg-Cu合金组织及性能的影响

Effects of quenching water temperature and cryogenic treatment on microstructure and mechanical properties of ultra-high strength Al-Zn-Mg-Cu alloy

PDF

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 15

编辑推荐

Metrics

本文评价

[1]	董泰励, 李昉, 陈庚, 张晨, 郭子龙, 陈康华, 陈送义. 自然时效耦合预拉伸提升Al-Zn-Mg-Cu合金力学性能和腐蚀抗力[J]. 金属热处理, 2024, 49(4): 104-110.
[2]	文超, 朱正锋, 王群, 陈送义, 陈康华. 7×××系超高强铝合金在我国轨道交通车辆的研究应用现状与展望[J]. 金属热处理, 2024, 49(3): 302-312.
[3]	张志春, 温佳, 陈国瑞, 吴广辉, 翁泽钜, 顾开选. 低合金耐磨钢的热处理工艺及力学性能[J]. 金属热处理, 2023, 48(9): 220-224.
[4]	王中琳, 李权, 龚志华, 包汉生, 雍兮. 丝杠用1Cr15Ni4Mo2CuN不锈钢热处理温度场的有限元数值模拟[J]. 金属热处理, 2023, 48(4): 245-252.
[5]	陈蕊, 包翠敏, 杨智鹏, 林琳. 热处理后9%Ni钢中逆转变奥氏体的稳定性[J]. 金属热处理, 2023, 48(2): 228-231.
[6]	宋少威, 尉文超, 时捷, 王毛球, 何肖飞, 周芸. 深冷处理对渗碳齿轮钢微观组织和硬度的影响[J]. 金属热处理, 2023, 48(11): 143-148.
[7]	孙宁, 王芝东, 王经涛, 迟蕊, 郭丰佳. 单级固溶对Al-Zn-Mg-Cu合金厚板组织及性能的影响[J]. 金属热处理, 2023, 48(11): 235-240.
[8]	赵冬梅, 倪磊, 蒋东旭, 丁洪兴. 深冷处理对DC53冷作模具钢摩擦磨损性能的影响[J]. 金属热处理, 2023, 48(11): 250-253.
[9]	晋芳伟, 吉学英, 马秀勤, 高榆岚. 深冷处理对5083Al-Mg合金组织和性能的影响[J]. 金属热处理, 2023, 48(10): 198-201.
[10]	潘冉, 刘宝胜, 曾元松, 曲海涛, 王东, 慕延宏. 深冷处理对15%SiC_p/2009铝基复合材料组织与力学性能的影响[J]. 金属热处理, 2022, 47(9): 65-70.
[11]	李慧东, 张覃轶, 刘伟, 孙伟, 伍冬. 深冷处理对440C马氏体不锈钢组织和耐蚀性的影响[J]. 金属热处理, 2022, 47(8): 152-157.
[12]	陈峙, 孟宇, 兰东生, 闫献国. 深冷处理对M2Al高速钢高温耐磨性的影响[J]. 金属热处理, 2022, 47(8): 158-162.
[13]	王少华, 钟立伟, 马志锋. 高温短时固溶处理对超高强Al-Zn-Mg-Cu合金锻件组织与性能的影响[J]. 金属热处理, 2022, 47(7): 20-26.
[14]	李晓琛, 王世颖, 华天宇, 陈智栋. 深冷处理对TC4钛合金退火过程中微观组织和力学性能的影响[J]. 金属热处理, 2022, 47(6): 46-53.
[15]	师佑杰, 李永刚, 李文辉, 王兴富. 深冷处理对TC4钛合金表面性能的影响[J]. 金属热处理, 2022, 47(2): 183-187.