轧制温度对Sc微合金化Al-3.2Cu-1.5Li合金组织和性能的影响

doi:10.13251/j.issn.0254-6051.2025.03.001

金属热处理 ›› 2025, Vol. 50 ›› Issue (3): 1-8.DOI: 10.13251/j.issn.0254-6051.2025.03.001

• 工艺研究 • 下一篇

轧制温度对Sc微合金化Al-3.2Cu-1.5Li合金组织和性能的影响

李申奥¹, 陈思文¹, 牛红伟¹, 朱红倩¹, 阚允¹, 江艳¹, 王健^1,2, 赵洪运³

1.江苏理工学院材料工程学院, 江苏常州 213001;
2.河海大学机电工程学院,江苏常州 213200;
3.哈尔滨工业大学(威海) 山东省特种焊接技术重点实验室, 山东威海 264209

收稿日期:2024-09-25 修回日期:2025-01-17 出版日期:2025-03-25 发布日期:2025-05-14
通讯作者: 牛红伟,实验师,硕士,E-mail:hwniujslg@jsut.edu.cn
作者简介:李申奥(2001—),男,硕士研究生,主要研究方向为轻质高强合金的塑性变形及热处理,E-mail:lishenao0517@163.com。
基金资助:
山东省自然科学基金(ZR2019PEE042);江苏省高等学校基础科学(自然科学)研究项目(23KJB430018);江苏省高等学校大学生创新创业训练计划(202211463022Z,202311463126E)

Influence of rolling temperature on microstructure and mechanical properties of Sc microalloyed Al-3.2Cu-1.5Li alloy

Li Shenao¹, Chen Siwen¹, Niu Hongwei¹, Zhu Hongqian¹, Kan Yun¹, Jiang Yan¹, Wang Jian^1,2, Zhao Hongyun³

1. School of Materials Engineering, Jiangsu Institute of Technology, Changzhou Jiangsu 213001, China;
2. College of Mechanical and Electrical Engineering, Hohai University, Changzhou Jiangsu 213200, China;
3. Shandong Provincial Key Laboratory of Special Welding Technology, Harbin Institute of Technology at Weihai, Weihai Shandong 264209, China

Received:2024-09-25 Revised:2025-01-17 Online:2025-03-25 Published:2025-05-14

摘要/Abstract

摘要： 利用SEM、EBSD、TEM和拉伸试验机,研究了不同轧制温度对Sc微合金化Al-3.2Cu-1.5Li合金微观组织及力学性能的影响。结果表明,热轧态和T6热处理状态下合金的晶粒主要以亚结构特征为主,沿位错或亚晶界析出的细小、稳定的Al₃(Sc, Zr)/Al₃(Li, Sc, Zr)弥散相是含Sc的Al-3.2Cu-1.5Li合金具有较高再结晶抗力的原因;同时,纳米Al₃(Sc, Zr)/Al₃(Li, Sc, Zr)颗粒的析出也明显阻碍了热轧和T6热处理过程中再结晶晶粒的生长。此外,随着轧制温度的升高,合金的抗拉强度先增加后降低,伸长率逐渐增加并趋于稳定。轧制温度为420 ℃时,合金具有较好的综合性能,抗拉强度和伸长率分别为480.4 MPa和13.0%,这归因于细晶强化、析出强化、弥散强化以及位错强化的综合作用结果。

关键词: Al-3.2Cu-1.5Li合金, 微量Sc元素, 轧制温度, 微观组织, 力学性能

Abstract: SEM, EBSD, TEM and tensile tests were used to investigate the influences of various rolling temperatures on the microstructure and mechanical properties of Sc microalloyed Al-3.2Cu-1.5Li alloy. The results indicate that the grain structures in hot rolled and T6 treated specimens are primarily composed of substructures. The fine and stable Al₃(Sc, Zr)/Al₃(Li, Sc, Zr) dispersed phases precipitated along dislocations or sub-grain boundaries are the reason that the Sc-containing Al-3.2Cu-1.5Li alloy has higher recrystallization resistance. Meanwhile, the precipitation of nanoscale Al₃(Sc, Zr)/Al₃(Li, Sc, Zr) particles efficiently prevents the growth of recrystallized grain during hot rolling and T6 heat treatment. Furthermore, as the rolling temperature increases, the tensile strength of the alloy first increases and then decreases, while the elongation has a rising tendency and then reaches the stabilizing stage. The alloy rolled at 420 ℃ possesses excellent overall properties, with a tensile strength of 480.4 MPa and an elongation of 13.0%, which can be attributed to the synergistic effects of fine grain, precipitation, dispersion and dislocation strengthening.

Key words: Al-3.2Cu-1.5Li alloy, trace Sc, rolling temperature, microstructure, mechanical properties

中图分类号:

TG146.2

李申奥, 陈思文, 牛红伟, 朱红倩, 阚允, 江艳, 王健, 赵洪运. 轧制温度对Sc微合金化Al-3.2Cu-1.5Li合金组织和性能的影响[J]. 金属热处理, 2025, 50(3): 1-8.

Li Shenao, Chen Siwen, Niu Hongwei, Zhu Hongqian, Kan Yun, Jiang Yan, Wang Jian, Zhao Hongyun. Influence of rolling temperature on microstructure and mechanical properties of Sc microalloyed Al-3.2Cu-1.5Li alloy[J]. Heat Treatment of Metals, 2025, 50(3): 1-8.

参考文献

[1] 王硕, 张弛, 王俊升, 等. 铝锂合金纳米析出相结构与性能综述[J]. 航空制造技术, 2021, 64(9): 68-76, 92.
Wang Shuo, Zhang Chi, Wang Junsheng, et al. Structures and properties of nano-precipitates in Al-Li alloys[J]. Aeronautical Manufacturing Technology, 2021, 64(9): 68-76, 92.
[2] 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.
[3] 刘志鹏, 肖阳, 马凯杰, 等. 航空航天铝锂合金开发及其研究进展[J]. 材料热处理学报, 2023, 44(11): 8-17.
Liu Zhipeng, Xiao Yang, Ma Kaijie, et al. Development and research progress of aerospace Al-Li alloys[J]. Transactions of Materials and Heat Treatment, 2023, 44(11): 8-17.
[4] Gumbmann E, Lefebvre W, De Geuser F, et al. The effect of minor solute additions on the precipitation path of an Al-Cu-Li alloy[J]. Acta Materialia, 2016, 115: 104-114.
[5] El-Aty Ali Abd, Xu Yong, Guo Xunzhong, 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.
[6] Zhang Jinshuo, Wu Guohua, Zhang Liang, et al. Addressing the strength-ductility trade-off in a cast Al-Li-Cu alloy-synergistic effect of Sc alloying and optimized artificial ageing scheme[J]. Journal of Materials Science and Technology, 2022, 96: 212-225.
[7] Jiang Bo, Yi Danqing, Yi Xiaoou, et al. Effect of trace amounts of added Sc on microstructure and mechanical properties of 2055 aluminum alloy[J]. Materials Characterization, 2018, 141: 248-259.
[8] 刘欣, 王国庆, 李曙光, 等. 重型运载火箭关键制造技术发展展望[J]. 航天制造技术, 2013(1): 1-6.
Liu Xin, Wang Guoqing, Li Shuguang, et al. Forecasts on crucial manufacturing technology develeopment development of heavy lift launch vehicle[J]. Aerospace Manufacturing Technology, 2013(1): 1-6.
[9] Mao Z, Chen W, Seidman D N, et al. First-principles study of the nucleation and stability of ordered precipitates in ternary Al-Sc-Li alloys[J]. Acta Materialia, 2011, 59(8): 3012-3023.
[10] Jia Min, Zheng Ziqiao, Gong Zhu. Microstructure evolution of the 1469 Al-Cu-Li-Sc alloy during homogenization[J]. Journal of Alloys and Compounds, 2014, 614: 131-139.
[11] 卢雅琳, 黄勇, 王健. 纳米TiC对Al-Cu合金微观组织和性能的影响[J]. 金属热处理, 2023, 48(3): 275-279.
Lu Yalin, Huang Yong, Wang Jian. Effect of nano-sized TiC on microstructure and properties of Al-Cu alloy[J]. Heat Treatment of Metals, 2023, 48(3): 275-279.
[12] Ovri H, Jägle E A, Stark A, et al. Microstructural influences on strengthening in a naturally aged and overaged Al-Cu-Li-Mg based alloy[J]. Materials Science and Engineering A, 2015, 637: 162-169.
[13] Peng Zhuowei, Li Jinfeng, Sang Fengjian, et al. Structures and tensile properties of Sc-containing 1445 Al-Li alloy sheet[J]. Journal of Alloys and Compounds, 2018, 747: 471-483.
[14] Liu Jing, Yao Pei, Zhao Naiqin, et al. Effect of minor Sc and Zr on recrystallization behavior and mechanical properties of novel Al-Zn-Mg-Cu alloys[J]. Journal of Alloys and Compounds, 2016, 657: 717-725.
[15] Shi Chunchang, Zhang Liang, Wu Guohua, et al. Effects of Sc addition on the microstructure and mechanical properties of cast Al-3Li-1.5Cu-0.15Zr alloy[J]. Materials Science and Engineering A, 2017, 680: 232-238.
[16] Ma Juan, Yan Desheng, Rong Lijian, et al. Effect of Sc addition on microstructure and mechanical properties of 1460 alloy[J]. Progress in Natural Science: Materials International, 2014, 24(1): 13-18.

轧制温度对Sc微合金化Al-3.2Cu-1.5Li合金组织和性能的影响

Influence of rolling temperature on microstructure and mechanical properties of Sc microalloyed Al-3.2Cu-1.5Li 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]	朱晨辉, 徐流杰, 谢红申, 石如星, 殷立涛. 回火温度对超级马氏体不锈钢组织和力学性能的影响[J]. 金属热处理, 2025, 50(3): 16-24.
[2]	王畅, 王良, 周培山, 申文竹, 王斌. 冷变形及热处理对GH738镍基合金组织与性能的影响[J]. 金属热处理, 2025, 50(3): 25-31.
[3]	赵伟男, 卢超, 曹建春, 徐朝勇, 杨立盛, 张金昌. 高压低温回火对铌微合金化高碳钢组织与性能的影响[J]. 金属热处理, 2025, 50(3): 32-37.
[4]	周晓舟, 孟利, 徐江杰, 张宁, 涂杨, 傅超, 杨勇. 挤压工艺对AZ80NC可溶镁合金组织和性能的影响[J]. 金属热处理, 2025, 50(3): 38-43.
[5]	郑东升, 范才河, 周顺志, 董跃, 夏毅. 工程机械用超高强钢的直接淬火-回火工艺及组织性能[J]. 金属热处理, 2025, 50(3): 51-56.
[6]	徐和林, 王江华. 焊后热处理对4Cr5MoSiV模具钢修补焊接头组织和性能的影响[J]. 金属热处理, 2025, 50(3): 64-68.
[7]	张保华, 董福元, 崔书辉, 黄旭刚. 固溶温度对QBe1.9和QBe2铍铜合金组织与性能的影响[J]. 金属热处理, 2025, 50(3): 96-101.
[8]	王娇娇, 高云哲, 郭泰瑜, 侯伟, 周玉青, 任可飘, 赵林林, 张子悦. 回火时间对深井套管用钢组织性能的影响[J]. 金属热处理, 2025, 50(3): 102-106.
[9]	郭旭东, 邹仕军, 卢影峰, 龙泽熙. 固溶工艺对7C04铝合金组织与性能的影响[J]. 金属热处理, 2025, 50(3): 132-137.
[10]	石磊, 田鹏勇, 温国强, 魏明江, 赵宇. 淬火工艺对铁素体/马氏体双相钢组织与性能的影响[J]. 金属热处理, 2025, 50(3): 138-142.
[11]	郭春成, 迟宏宵, 谷金波, 董丽丽, 朱留平. Mo对Fe-Co-Cr系轴承钢组织及强韧性的影响[J]. 金属热处理, 2025, 50(3): 150-157.
[12]	马若曦, 尹宇彬, 邓超, 李子瑜, 张哲临, 丁桦. Fe-18Mn-8Al-1C轻质钢的组织性能及变形机制[J]. 金属热处理, 2025, 50(3): 183-188.
[13]	周浩, 杜豪杰, 曾燕屏, 郭德瑞, 李炜丽, 马志宝, 王庆峰, 李旌鑫. 高温长时在役GH4145合金螺栓的显微组织和力学性能[J]. 金属热处理, 2025, 50(3): 189-195.
[14]	梁晓东, 王炜, 李永清, 袁博, 郭晓峰, 程言龙. G115钢大口径厚壁管长期时效后的微观组织及力学性能[J]. 金属热处理, 2025, 50(3): 196-200.
[15]	董恩涛, 滕艾均, 方强, 陈鑫, 代广霖, 康强, 王鹏, 耿乃涛. Ti-38644钛合金热变形行为及组织演变[J]. 金属热处理, 2025, 50(3): 201-207.