时效温度对冷轧2A97铝锂合金拉伸性能和晶间腐蚀敏感性的影响

doi:10.13251/j.issn.0254-6051.2024.11.032

金属热处理 ›› 2024, Vol. 49 ›› Issue (11): 209-214.DOI: 10.13251/j.issn.0254-6051.2024.11.032

时效温度对冷轧2A97铝锂合金拉伸性能和晶间腐蚀敏感性的影响

李梦琪¹, 王芝秀^1,2, 李海^1,2

1.常州大学材料科学与工程学院, 江苏常州 213164;
2.常州大学江苏省材料表面科学与技术重点实验室, 江苏常州 213164

收稿日期:2024-06-05 修回日期:2024-09-03 出版日期:2024-11-25 发布日期:2025-01-09
通讯作者: 王芝秀,教授,博士,E-mail:xiu_wzx@sohu.com
作者简介:李梦琪(1999—),女,硕士研究生,主要研究方向为高性能变形铝合金,E-mail:mqli_99@163.com。
基金资助:
国家自然科学基金(52171029,51671038)

Effect of aging temperature on tensile properties and intergranular corrosion sensitivity of cold rolled 2A97 Al-Li alloy

Li Mengqi¹, Wang Zhixiu^1,2, Li Hai^1,2

1. School of Materials Science and Engineering, Changzhou University, Changzhou Jiangsu 213164, China;
2. Jiangsu Key Laboratory of Materials Surface Science and Technology, Changzhou University, Changzhou Jiangsu 213164, China

Received:2024-06-05 Revised:2024-09-03 Online:2024-11-25 Published:2025-01-09

摘要/Abstract

摘要： 通过拉伸测试、晶间腐蚀测试、扫描电镜和透射电镜观察,研究了时效处理(150~210 ℃,1 h)对(525 ℃×1 h)固溶处理+70%压下量冷轧后的2A97铝锂合金拉伸性能和晶间腐蚀敏感性的影响。结果表明,随时效温度的升高,合金强度先增大后减小,伸长率不断减小;腐蚀类型由均匀腐蚀转为点蚀,最大腐蚀深度逐渐增加,这与T₁相和θ′相在晶内析出,同时析出相在晶界处断续分布有关。时效温度为180 ℃时,合金获得高强度(597、540 MPa)、较高伸长率(6.9%),且无晶间腐蚀敏感性。

关键词: 2A97铝锂合金, 时效温度, 拉伸性能, 晶间腐蚀敏感性

Abstract: Effect of aging treatment (150-210 ℃, 1 h) on the tensile properties and intergranular corrosion sensitivity of 2A97 Al-Li alloy after solid solution treatment(525 ℃×1 h) and 70% reduction cold rolling was investigated by tensile test, intergranular corrosion test, scanning electron microscopy and transmission electron microscopy. The results show that with the increase of aging temperature, the strength of the alloy increases first and then decreases, and the elongation decreases continuously. The corrosion type changes from uniform corrosion to pitting corrosion and the maximum corrosion depth gradually increases, which is related to the precipitation of T₁ phase and θ′ phase in the grains, and the intermittent distribution of precipitated phase at the grain boundary. When the aging temperature is 180 ℃, the alloy can obtain high strength(597, 540 MPa), high elongation(6.9%), and no intergranular corrosion sensitivity.

Key words: 2A97 Al-Li alloy, aging temperature, tensile property, intergranular corrosion sensitivity

中图分类号:

TG146.21

李梦琪, 王芝秀, 李海. 时效温度对冷轧2A97铝锂合金拉伸性能和晶间腐蚀敏感性的影响[J]. 金属热处理, 2024, 49(11): 209-214.

Li Mengqi, Wang Zhixiu, Li Hai. Effect of aging temperature on tensile properties and intergranular corrosion sensitivity of cold rolled 2A97 Al-Li alloy[J]. Heat Treatment of Metals, 2024, 49(11): 209-214.

参考文献

[1]Liu D Y, Wang J X, Li J F. Microstructures evolution and mechanical properties disparity in 2070 Al-Li alloy with minor Sc addition[J]. Transactions of Nonferrous Metals Society of China, 2018, 28(11): 2151-2161.
[2]郑子樵, 李劲风, 陈志国, 等. 铝锂合金的合金化与微观组织演化[J]. 中国有色金属学报, 2011, 21(10): 2337-2351.
Zheng Ziqiao, Li Jinfeng, Chen Zhiguo, et al. Alloying and microstructural evolution of Al-Li alloys[J]. The Chinese Journal of Nonferrous Metals, 2011, 21(10): 2337-2351.
[3]Zhang P, Liu Y, Zhang Y, et al. Analysis of the microhardness, mechanical properties and electrical conductivity of 7055 aluminum alloy[J]. Vacuum, 2019, 171: 109005.
[4]李昊然, 李湛琦, 汪珈逸, 等. 2050铝锂合金薄板拉伸性能及晶间腐蚀与时效的相关性[J]. 金属热处理, 2021, 46(5): 150-155.
Li Haoran, Li Zhanqi, Wang Jiayi, et al. Effect of aging on tensile properties and intergranular corrosion sensitivity of 2050 Al-Li alloy[J]. Heat Treatment of Metals, 2021, 46(5): 150-155.
[5]Wang Y, Ma X, Xi H, et al. Effects of pre-stretching and aging treatments on microstructure, mechanical properties, and corrosion behavior of spray-formed Al-Li alloy 2195[J]. Journal of Materials Engineering and Performance, 2020, 29(10): 6960-6973.
[6]Wang Z, Chen P, Li H, et al. The intergranular corrosion susceptibility of 2024 Al alloy during re-ageing after solution treating andcold-rolling[J]. Corrosion Science, 2017, 114: 156-168.
[7]张赛飞, 曾卫东, 杨文华, 等. 2198铝锂合金对时效温度敏感性及其析出行为[J]. 稀有金属材料与工程, 2015, 44(8): 2024-2028.
Zhang Saifei, Zeng Weidong, Yang Wenhua, et al. Sensitivity of 2198 Al-Li alloy to aging temperature and its precipitation behavior[J]. Rare Metal Materials and Engineering, 2015, 44(8): 2024-2028.
[8]游任轩, 马运柱, 汤娅, 等. 单级时效处理对2A97铝锂合金组织、力学性能和腐蚀性能的影响[J]. 粉末冶金材料科学与工程, 2022, 27(4): 398-408.
You Renxuan, Ma Yunzhu, Tang Ya, et al. Effects of single-stage aging treatment on microstructure, mechanical properties and corrosion properties of 2A97 Al-Li alloys[J]. Materials Science and Engineering of Powder Metallurgy, 2022, 27(4): 398-408.
[9]马晓光, 李韶颖, 韩宝帅, 等. 时效前的预变形对喷射成形2195铝锂合金组织性能的影响[J]. 中国有色金属学报, 2021, 32(1): 15-26.
Ma Xiaoguang, Li Shaoying, Han Baoshuai, et al. Effect of pre-stretch on microstructure and properties of 2195 Al-Li alloy prepared by spray forming[J]. The Chinese Journal of Nonferrous Metals, 2021, 32(1): 15-26.
[10]Ma P, Zhan L, Liu C, et al. Pre-strain-dependent natural ageing and its effect on subsequent artificial ageing of an Al-Cu-Li alloy[J]. Journal of Alloys and Compounds, 2019, 790: 8-19.
[11]Tsivoulas D, Prangnell P B. The effect of Mn and Zr dispersoid-forming additions on recrystallization resistance in Al-Cu-Li AA2198 sheet[J]. Acta Materialia, 2014, 77(4): 1-16.
[12]Donnadieu P, Shao Y, De Geuser F, et al. Atomic structure of T₁ precipitates in Al-Li-Cu alloys revisited with HAADF-STEM imaging and small-angle X-ray scattering[J]. Acta Materialia, 2011, 59(2): 462-472.
[13]Chen W B, Xiao D H, Wu M D, et al. Effect of cold rolling pre-deformation on microstructure and properties of V-1469 Al-Li alloy[J]. Journal of Materials Research and Technology, 2020, 9(5): 9675-9683.
[14]Lynch S P, Wilson A R, Byrnes R T. Effects of ageing treatments on resistance to intergranular fracture of 8090 Al-Li alloy plate[J]. Materials Science and Engineering A, 1993, 172(1): 79-93.
[15]于娟, 冯朝辉, 赵唯一, 等. 预拉伸变形量对2050铝锂合金组织和性能的影响[J]. 金属热处理, 2022, 47(6): 64-68.
Yu Juan, Feng Zhaohui, Zhao Weiyi, et al. Effect of pre-stretching amount on microstructure and properties of 2050 Al-Li alloy[J]. Heat Treatment of Metals, 2022, 47(6): 64-68.
[16]Kawabata T, Izumi O. Ducitle fracture in the interior of precipitate free zone in an Al-6Zn-2.6Mg alloy[J]. Acta Metallurgica, 1976, 24(9): 817-825.
[17]Zhang F, Shi D, He Z, et al. Precipitated phase characteristics and fracture behaviour of cast Al-Cu-Mn alloy[J]. Journal of Materials Research and Technology, 2023, 25: 2815-2825.
[18]孙浩鸣, 刘崇宇, 石磊, 等. 添加Sc和提高Zn含量对7085铝合金力学性能、淬火敏感性和耐蚀性能的影响[J]. 金属热处理, 2023, 48(4): 196-203.
Sun Haoming, Liu Chongyu, Shi Lei, et al. Effect of Sc addition and increasing Zn content on mechanical properties, quenching sensitivity and corrosion resistance of 7085 aluminum alloy[J]. Heat Treatment of Metals, 2023, 48(4): 196-203.
[19]Araujo J V D S, Milagre M X, Ferreira R O, et al. Exfoliation and intergranular corrosion resistance of the 2198 Al-Cu-Li alloy with different thermomechanical treatments[J]. Materials and Corrosion, 2020, 71(12): 1957-1970.
[20]Lin Y, Lu C, Wei C, et al. Effect of aging treatment on microstructures, tensile properties and intergranular corrosion behavior of Al-Cu-Li alloy[J]. Materials Characterization, 2018, 141: 163-168.
[21]Wang Z, Zhu F, Zheng K, et al. Effect of the thickness reduction on intergranular corrosion in an under-aged Al-Mg-Si-Cu alloy during cold-rolling[J]. Corrosion Science, 2018, 142: 201-212.

时效温度对冷轧2A97铝锂合金拉伸性能和晶间腐蚀敏感性的影响

Effect of aging temperature on tensile properties and intergranular corrosion sensitivity of cold rolled 2A97 Al-Li 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]	李正龙, 庞景宇, 汤广全, 程陆凡, 张财伟, 侯星宇, 李文, 张海峰. 变形热处理对Ti₄₅Zr₂₀Nb₁₅V_(10-x)Al₁₀Mo_x难熔高熵合金组织与性能的影响[J]. 金属热处理, 2024, 49(7): 47-53.
[2]	刘红亮, 唐恩, 林鹏, 张瑞, 袁清. 奥氏体化前预变形对低碳微合金纳米钢组织和性能的影响[J]. 金属热处理, 2024, 49(7): 301-306.
[3]	梁祥, 高翔, 李云龙, 徐志锋, 张正, 闫利青, 余欢. 深冷处理对叠层穿刺C_f/Al基复合材料组织特征和拉伸性能的影响[J]. 金属热处理, 2024, 49(5): 74-80.
[4]	赵倩, 董福宇, 吴福川, 张悦, 徐欣. 固溶时效对Ti-5Al-3.5Fe-7Mo-4Cr合金组织与性能的影响[J]. 金属热处理, 2024, 49(5): 100-105.
[5]	张瑞, 张晓辰, 张正, 崔文明, 杨家典, 刘彦旭, 王纪兴, 白家元. 热处理制度对GH4698高温合金组织与硬度的影响[J]. 金属热处理, 2024, 49(5): 204-209.
[6]	唐恩, 彭侠超, 刘红亮, 张瑞, 王坤. 合金元素对高碳珠光体盘条钢组织和性能的影响[J]. 金属热处理, 2024, 49(4): 42-47.
[7]	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.
[8]	张立生, 王小巩. 热轧变形对高铝316L不锈钢微观组织与性能的影响[J]. 金属热处理, 2024, 49(3): 33-36.
[9]	刘鹏飞, 关琳, 刘建, 陈宇, 刘宏亮. 退火工艺对低成本980 MPa级冷轧双相钢组织和性能的影响[J]. 金属热处理, 2024, 49(3): 122-127.
[10]	彭宁琦, 周文浩, 金东浩, 武会宾. 高强韧桥梁钢Q690q的单轴拉伸性能与低周疲劳性能[J]. 金属热处理, 2024, 49(2): 25-31.
[11]	胡生双, 陈素明, 颜家维, 岳珊, 高晓颖, 欧阳德来. 时效温度对TB18钛合金组织和力学性能的影响[J]. 金属热处理, 2024, 49(2): 190-194.
[12]	曹洋洋, 李锋, 陈立佳, 谷雪忠, 王斌, 张鹏, 张哲峰. 退火处理对CP780钢组织和拉伸行为的影响[J]. 金属热处理, 2024, 49(11): 104-111.
[13]	李林平, 刘艳荣, 杨茂鸿, 杜晋峰, 张峥. 焊后热处理对Sanicro25/G115异种钢接头组织及力学性能的影响[J]. 金属热处理, 2024, 49(11): 178-184.
[14]	翟欣姣, 张明玉, 宋一新, 岳旭, 同晓乐. 热处理工艺对Ti-55511钛合金微观组织与拉伸性能的影响[J]. 金属热处理, 2024, 49(11): 185-190.
[15]	裴梦雨, 孙有平, 何江美, 刘华燊, 刘鑫雨. 时效温度对轧制Mg-Al-Ca-Mn-Zn合金组织及阻尼性能的影响[J]. 金属热处理, 2024, 49(11): 246-255.