锻压技术

固溶-时效对2195铝锂合金型材力学性能的影响

英文标题：Influence of solution-aging on mechanical properties for 2195 Al-Li alloy profile

作者：马康1 王清峰2 3 宋健1 初冠南2 3

单位：1.天津航天长征火箭制造有限公司 2. 哈尔滨工业大学（威海）3. 哈工大(威海)创新创业园有限责任公司

分类号：TG166.3

出版年,卷(期):页码：2023,48(2):203-209

摘要：

2195铝锂合金作为可热处理强化新型铝锂合金的代表，具有高比强度、高耐腐蚀和抗疲劳等优点，常作为受力结构件被广泛应用于航天航空领域，因此，有必要对其热处理制度展开研究。通过室温单轴拉伸试验和硬度测试，获得了在不同固溶温度、不同固溶时间、不同人工时效温度和不同人工时效时间下的型材的强度、伸长率和硬度值，研究了固溶-时效参数对O态2195铝锂合金型材力学性能的影响。结果表明：在520 ℃下固溶1.5 h以上，再在高于160 ℃的环境下至少保温24 h进行人工时效，可使2195铝锂合金型材满足工程需求。运用最小二乘法建立了2195铝锂合金型材的硬度值与抗拉强度值之间的线性关系，可以较快地得出强度值。

2195 Al-Li alloy as a representative of the new Al-Li alloy which can be strengthened by heat treatment, it has the advantages of high specific strength, high corrosion resistance and fatigue resistance, and it is often used as a stressed structural part in the aerospace field, so it is necessary to study its heat treatment process. Therefore, the strength, elongation and hardness values of profile at different solution temperatures, different solution times, different artificial aging temperatures and different artificial aging times were obtained by the uniaxial tensile test at room temperature and the hardness test, and the influence of solution-aging parameters on the mechanical properties of 2195 Al-Li alloy profile in O state was studied. The results show that 2195 Al-Li alloy profile meets the engineering requirements by solution treatment at 520 ℃ for more than 1.5 h, and then artificial aging at an environment higher than 160 ℃ for least 24 h. The linear relationship between hardness and tensile strength values of 2195 Al-Li alloy profile is established by the least square method, and the strength value can be obtained quickly.

基金项目：

山东省重大科技创新工程(2020CXGC010303); 国家自然科学基金重点项目(U1937205); 山东省重大科技创新工程(2019TSLH0103)

作者简介：马康 (1986-)，男，硕士，工程师，E-mail：wqf1826@163.com；通信作者：初冠南 (1979-)，男，博士，教授，E-mail：chuguannan@hit.edu.cn

参考文献：

[1]徐进军，康唯，都昌兵. 航空航天铝锂合金及其成形技术的研究现状和发展趋势[J]. 兵器材料科学与工程，2017，40(3)：132-137.

Xu J J, Kang W, Du C B. Research status and development trends of Al-Li alloys for aeronautic and astronautic industry [J]. Ordnance Material Science and Engineering, 2017, 40(3): 132-137.

[2]Dursun T, Soutis C. Recent development in advanced aircraft aluminum alloys[J]. Materials & Design, 2014, 56: 862-871.

[3]El-Aty A A, Xu Y, Guo X Z, et al. Strengthening mechanisms, deformation behavior, and anisotropic mechanical properties of Al-Li alloys: A review[J]. Journal of Advanced Research, 2018, 10: 49-67.

[4]Betsofen S Y, Antipov V V, Knyazev M I. Al-Cu-Li and Al-Mg-Li alloys: Phase composition, texture, and anisotropy of mechanical properties (Review)[J]. Russian Metallurgy (Metally), 2016,(4): 326-341.

[5]张下陆，张杰刚，朱亚蓉，等. 加热温度对新淬火态2219铝合金板材力学性能影响[J]. 热加工工艺，2022,(18)：135-137, 140.

Zhang X L, Zhang J G, Zhu Y R, et al. Effect of heating temperature on mechanical properties of newly quenched 2219 aluminum alloy sheet[J]. Hot Working Technology, 2022,(18): 135-137, 140.

[6]张下陆，李继光，赵鸿飞，等. 加热温度对退火态2219铝合金板材力学性能的影响[J]. 锻压技术，2021， 46(7)：129-133.

Zhang X L, Li J G, Zhao H F, et al. Influence of heating temperature on mechanical properties for annealed 2219 aluminum alloy sheet[J]. Forging & Stamping Technology, 2021, 46(7): 129-133.

[7]李继光，王一，张下陆，等. 加热温度对不同热处理状态2A14铝合金力学性能的影响分析[J]. 热加工工艺，2021，50(24)：134-137.

Li J G, Wang Y, Zhang X L, et al. Analysis on effect of heating temperature on mechanical properties of 2A14 aluminum alloy under different heat treatment conditions[J]. Hot Working Technology, 2021, 50(24): 134-137.

[8]Zhang X S, Chen Y J, Hu J L. Recent advances in the development of aerospace materials[J]. Progress in Aerospace Sciences, 2018, 97: 22-34.

[9]Xie B X, Huang L, Xu J H, et al. Effect of the aging process and pre-deformation on the precipitated phase and mechanical properties of 2195 Al-Li alloy[J]. Materials Science and Engineering: A, 2021, 832: 142394.

[10]Rioja R J, Liu J. The evolution of Al-Li base products for aerospace and space applications[J]. Metallurgical and Materials Transactions A, 2012, 43(9): 3325-3337.

[11]胡丽敏，曹俊生，姚芳，等. 2195铝锂合金轧环制备工艺研究[J]. 金属加工：热加工，2022，(2)：86-88.

Hu L M, Cao J S, Yao F,et al. Research on the preparation process of 2195 aluminum-lithium alloy rolling ring[J]. MW Metal Forming, 2022, (2): 86-88.

[12]Kim I S, Song M Y, Kim J H, et al. Effect of added Mg on the clustering and two-step aging behavior of Al-Cu alloys[J]. Materials Science and Engineering：A, 2020, 798: 140123.

[13]Chen H, Chen Z, Ji G, et al. Experimental and modelling assessment of ductility in a precipitation hardening AlMgScZr alloy[J]. International Journal of Plasticity, 2021, 139: 102971.

[14]郑晖，栾景旺，孙凌崴，等. 固溶温度对2195铝锂合金板料成形性能的影响[J]. 塑性工程学报，2022， 29(1)：46-53.

Zheng H, Luan J W, Sun L W, et al. Effect of solution temperature on formability of 2195 Al-Li alloy sheet[J]. Journal of Plasticity Engineering, 2022, 29(1): 46-53.

[15]易云静. 热处理及预变形对2195铝锂合金板材组织性能的影响[D]. 哈尔滨：哈尔滨工业大学，2017.

Yi Y J. Effects of Heat Treatment and Pre-deformation on Microstructure and Properties of 2195 Al-Li Alloy Sheet[D]. Harbin:Harbin Institute of Technology, 2017.

[16]Dorin T, Deschamps A, Geuser F D, et al. Quantification and modelling of the microstructure/strength relationship by tailoring the morphological parameters of the T1 phase in an Al-Cu-Li alloy[J]. Acta Materialia, 2014, 75: 134-146.

[17]Xu J J, Deng Y L, Chen J Q, et al. Effect of ageing treatments on the precipitation behavior and mechanical properties of Al-Cu-Li alloys[J]. Materials Science and Engineering: A, 2020, 773: 138885.

[18]Zhang C S, Liu M F, Meng Z J, et al. Microstructure evolution and precipitation characteristics of spray-formed and subsequently extruded 2195 Al-Li alloy plate during solution and aging process[J]. Journal of Materials Processing Technology, 2020, 283: 116718.

[19]Duan S W, Matsuda K, Wang T, et al. Microstructures and mechanical properties of a cast Al-Cu-Li alloy during heat treatment procedure[J]. Rare Metals, 2020, 40(7): 1897-1906.

[20]肖代红，王新凯，陈伟斌，等. 固溶温度对2195铝锂合金组织与性能的影响[J]. 特种铸造及有色合金，2021，41(10)：1193-1196.

Xiao D H, Wang X K, Chen W B, et al. Effects of solid solution temperature on the microstructure and properties of 2195 Al-Li Alloy[J]. Special Casting & Nonferrous Alloys, 2021, 41(10):1193-1196.

[21]胡铁牛. 热处理工艺对2195铝锂合金低温力学性能影响规律研究[D]. 哈尔滨：哈尔滨工业大学，2008.

Hu T N. The effect of Heat Treatment Technology on Cryogenic Mechanical Properties of 2195 Al-Li alloys[D]. Harbin:Harbin Institute of Technology, 2008.

[22]崔帅. 热处理制度对2195铝锂合金微观组织与性能影响规律的研究[D]. 济南：山东大学，2021.

Cui S. Research on the Influence of Heat Treatment on Microstructure and Properties of 2195 Al-Li alloy[D]. Jinan：Shandong University, 2021.

[23]冯博. 2195铝锂合金板材热处理工艺优化及组织性能调控[D].北京：北京有色金属研究总院，2021.

Feng B. Optimization of Heat Treatment Process and Control of Microstructure and Properties of 2195 Al-Li Alloy Sheet[D].Beijing：General Research Insitute for Nonferrous Metals, 2021.

[24]GB/T 228.1—2021，金属材料拉伸试验第1部分：室温试验方法[S].

GB/T 228.1—2021, Metallic materials—Tensile test—Part 1:Test method at room temperature [S].

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