添加稀土对Al-Mg-Si合金微观组织和性能的影响

doi:10.13251/j.issn.0254-6051.2024.07.015

金属热处理 ›› 2024, Vol. 49 ›› Issue (7): 100-105.DOI: 10.13251/j.issn.0254-6051.2024.07.015

添加稀土对Al-Mg-Si合金微观组织和性能的影响

陈保安^1,2, 李梦琳^1,2, 陈瑞^1,2, 多俊龙³, 韩钰^1,2, 祝志祥^1,2, 杨长龙³, 缪姚军⁴

1.国网智能电网研究院有限公司先进输电技术全国重点实验室, 北京 102209;
2.国网智能电网研究院有限公司电工新材料研究所, 北京 102209;
3.国网辽宁省电力有限公司沈阳供电公司, 辽宁沈阳 110003;
4.江苏中天科技股份有限公司, 江苏南通 226463

收稿日期:2023-12-22 修回日期:2024-04-03 出版日期:2024-07-25 发布日期:2024-08-29
作者简介:陈保安(1981—),男,正高级工程师,博士,主要研究方向为电工导体材料,E-mail:dzcba@163.com
基金资助:
国家电网有限公司总部科技项目(5500-202128250A-0-0-00)

Effect of rare earth addition on microstructure and properties of Al-Mg-Si alloy

Chen Baoan^1,2, Li Menglin^1,2, Chen Rui^1,2, Duo Junlong³, Han Yu^1,2, Zhu Zhixiang^1,2, Yang Changlong³, Miao Yaojun⁴

1. State Key Laboratory of Advanced Power Transmission Technology, State Grid Smart Grid Research Institute Co., Ltd., Beijing 102209, China;
2. Department of Electrical Engineering New Materials, State Grid Smart Grid Research Institute Co., Ltd., Beijing 102209, China;
3. Shenyang Electric Power Supply Company, State Grid Liaoning Electric Power Supply Co., Ltd., Shenyang Liaoning 110003, China;
4. Jiangsu Zhongtian Technology Co., Ltd., Nantong Jiangsu 226463, China

Received:2023-12-22 Revised:2024-04-03 Online:2024-07-25 Published:2024-08-29

摘要/Abstract

摘要： 采用热轧和冷拔法制备了添加稀土(Ce或Sc)和未添加稀土的Al-Mg-Si合金单丝,并对其在175 ℃时效不同时间。采用SEM、TEM进行组织观察,通过电子万能试验机测试合金单丝的抗拉强度和伸长率,并通过微欧计对单丝电阻进行测试。结果表明,添加稀土元素能够改善微米级AlFeSi大颗粒的形貌和尺寸特征;在时效处理过程中,Ce元素对纳米级析出相特征无明显影响,而Sc元素能够抑制纳米析出相的析出和长大过程。含Sc合金中β″相的尺寸最小,分布也更加弥散。175 ℃时效4 h后,3种合金具有良好的综合性能,其中,添加Ce元素后合金的导电率最高(~56.2%IACS),而添加Sc元素后合金的抗拉强度最高(~350 MPa)。

关键词: Al-Mg-Si合金, 稀土, 微观组织, 抗拉强度, 导电率

Abstract: Single wires of Al-Mg-Si alloys with rare earth addition (Ce or Sc) and without rare earth(RE) addition were prepared by hot rolling and cold drawing, and aged at 175 ℃ for different time. Microstructure of the alloy wires was observed by SEM and TEM, while the tensile strength and elongation were obtained by tensile test with electrical universal testing machine, and the resistance was also tested on digital micro-ohmmeter. The results show that the morphologies and size characteristics of micro-scale AlFeSi particles are improved owing to the RE addition. During the aging process, Ce has no obvious effect on the characteristics of nanoscale precipitates, while Sc can inhibit the precipitation and growth process of nanoscale precipitates. Therefore, the β″ phase in Sc-containing alloys possesses minimum size and well-dispersed distribution. After aging at 175 ℃ for 4 h, considerably well-performed comprehensive properties are obtained for all the 3 alloys, among which the Ce-added alloy has the highest electric conductivity (about 56.2%IACS), while the Sc-added alloy exhibits the highest tensile strength (about 350 MPa).

Key words: Al-Mg-Si alloy, rare earth, microstructure, tensile strength, electrical conductivity

中图分类号:

TG244.2

陈保安, 李梦琳, 陈瑞, 多俊龙, 韩钰, 祝志祥, 杨长龙, 缪姚军. 添加稀土对Al-Mg-Si合金微观组织和性能的影响[J]. 金属热处理, 2024, 49(7): 100-105.

Chen Baoan, Li Menglin, Chen Rui, Duo Junlong, Han Yu, Zhu Zhixiang, Yang Changlong, Miao Yaojun. Effect of rare earth addition on microstructure and properties of Al-Mg-Si alloy[J]. Heat Treatment of Metals, 2024, 49(7): 100-105.

参考文献

[1]叶鸿声. 中强度全铝合金导线在输电线路中的应用[J]. 电力建设, 2010, 31(12): 14-19.
Ye Hongsheng. Application of moderate-strength all aluminum alloy conductor in transmission lines[J]. Electric Power Construction, 2010, 31(12): 14-19.
[2]刘斌, 郑秋, 党朋, 等. 铝合金在架空导线领域的应用及发展[J]. 电线电缆, 2012(4): 10-15.
Liu Bin, Zheng Qiu, Dang Peng, et al. Development andapplications of aluminum alloy in overhead lines[J]. Wire and Cable, 2012(4): 10-15.
[3]陈保安, 韩钰, 陈新, 等. 中强度铝合金导线概述[J]. 热加工工艺, 2015, 44(18): 6-8.
Chen Baoan, Han Yu, Chen Xin, et al. An overview of medium strength aluminum alloy conductor[J]. Hot Working Technology, 2015, 44(18): 6-8.
[4]陈保安, 潘学东, 赵丽丽, 等. Al-Mg-Si系铝合金导体材料的研制[J]. 特种铸造及有色合金, 2020, 40(9): 1038-1041.
Chen Baoan, Pan Xuedong, Zhao Lili, et al. Development of Al-Mg-Si series aluminum alloy conductor material[J]. Special Casting and Nonferrous Alloys, 2020, 40(9): 1038-1041.
[5]侯淞学, 彭涛, 王雪, 等. 稀土Al-Mg-Si合金导线的热处理与性能研究[J]. 热加工工艺, 2018, 47(6): 215-218, 222.
Hou Songxue, Peng Tao, Wang Xue, et al. Study on heat treatment and properties of rare earth Al-Mg-Si alloy wire[J]. Hot Working Technology, 2018, 47(6): 215-218, 222.
[6]Fu J N, Yang Z, Deng Y L, et al. Influence of Zr addition on precipitation evolution and performance of Al-Mg-Si alloy conductor[J]. Materials Characterization, 2020, 159: 110021-110027.
[7]杨军军, 聂祚仁, 付静波, 等. 稀土在铝合金中的作用及研究进展[J]. 北京工业大学学报, 2002, 28(4): 500-505.
Yang Junjun, Nie Zuoren, Fu Jingbo, et al. Effect of rare earths on aluminum alloys and its research[J]. Journal of Beijing University of Technology, 2002, 28(4): 500-505.
[8]Karabay S. Influence of AlB₂ compound on elimination of incoherent precipitation in artificial aging of wires drawn from redraw rod extruded from billets cast of alloy AA-6101 by vertical direct chill casting[J]. Materials and Design, 2008, 29(7): 1364-1375.
[9]陈保安, 赵丽丽, 张静媛, 等. Y对Al-Zr合金微观组织与性能的影响[J]. 特种铸造及有色合金, 2021, 41(1): 68-72.
Chen Baoan, Zhao Lili, Zhang Jingyuan, et al. Effects of Yaddition on the microstructure and properties of Al-Zr alloy[J]. Special Casting and Nonferrous Alloys, 2021, 41(1): 68-72.
[10]康福伟, 王丽萍, 张显有. 微量稀土元素对工业纯铝电阻率的影响[J]. 哈尔滨理工大学学报, 2003, 8(6): 112-114.
Kang Fuwei, Wang Liping, Zhang Xianyou. Effects of microscale rare earth elements on electrical resistivity of industrial pure aluminum[J]. Journal of Harbin University of Science and Technology, 2003, 8(6): 112-114.
[11]雷文魁, 王顺成, 郑开宏, 等. La, Ce混合稀土对6201电工铝合金组织性能的影响[J]. 材料研究与应用, 2015, 9(1): 20-24.
Lei Wenkui, Wang Shuncheng, Zheng Kaihong, et al. Effects of La and Ce mischmetal on microstructure and properties of 6201 aluminum alloy[J]. Materials Research and Application, 2015, 9(1): 20-24.
[12]张向宇, 熊计, 赵国忠, 等. 稀土La对6063铝合金组织与时效性能的影响[J]. 有色金属, 2010, 62(1): 1-5.
Zhang Xiangyu, Xiong Ji, Zhao Guozhong, et al. Effect of rare earth La on microstructures and ageing characteristics of 6063 aluminum alloy[J]. Nonferrous Metals, 2010, 62(1): 1-5.
[13]Hosseinifaa M, Malakhoy D V. Effect of Ce and La on microstructure and properties of a 6××× series type aluminum alloy[J]. Journal of Materials Science, 2008, 43(22): 7157-7164.
[14]Conductors for overhead lines, aluminium magnesium silicon alloy wires: EN 50183-2000[S].
[15]Karabay S. Modification of AA-6201 alloy for manufacturing of high conductivity and extra high conductivity wires with property of high tensile stress after artificial aging heat treatment for all-aluminium alloy conductors[J]. Materials and Design, 2006, 27(10): 821-832.
[16]Becker H, Bergh T, Vullum P E, et al. β-and δ-Al-Fe-Si intermetallic phase, their intergrowth and polytype formation[J]. Journal of Alloys and Compounds, 2019, 780: 917-929.
[17]袁武华, 张传阳. 稀土元素含量对铝合金显微组织和性能的影响[J]. 机械工程材料, 2014, 38(11): 54-59.
Yuan Wuhua, Zhang Chuanyang. Effects of contents of RE element on microstructure and properties of aluminum alloy[J]. Materials for Mechanical Engineering, 2014, 38(11): 54-59.
[18]Liu G, Zhang G J, Ding X D, et al. The influences of multiscale-sized second-phase particles on ductility of aged aluminum alloys[J]. Metallurgical and Materials Transactions A, 2004, 35(6): 1725-1734.
[19]Kim S N, Kim J H, Kobayashi E, et al. Influence of Mg/Si ratio on nanocluster formation in Al-Mg-Si alloys with constant Mg+Si concentration[J]. Materials Transactions, 2014, 55(11): 1647-1655.
[20]Yang W C, Wang M P, Zhang R R, et al. The diffraction patterns from β″ precipitates in 12 orientations in Al-Mg-Si alloy[J]. Scripta Materialia, 2010, 62(9): 705-708.

添加稀土对Al-Mg-Si合金微观组织和性能的影响

Effect of rare earth addition on microstructure and properties of Al-Mg-Si 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]	周蕾, 王莹, 张永健, 赵晓丽, 惠卫军. V+Ti微合金化Mn-Cr系贝氏体型非调质钢的氢脆敏感性[J]. 金属热处理, 2024, 49(7): 106-112.
[2]	董丽丽, 崔成波, 袁晓鸣, 刘泽田. BTP500钢板过冷奥氏体连续冷却转变行为[J]. 金属热处理, 2024, 49(7): 157-160.
[3]	蒋军杰, 王永彪, 肖志玲, 樊江磊, 张正文. 退火温度对激光选区熔化成形TA15钛合金微观组织与力学性能的影响[J]. 金属热处理, 2024, 49(7): 241-248.
[4]	丁屹, 李爱国, 李贤君, 白玉宏, 蒋秋娥, 彭光华, 罗平, 侯俊卿. 热处理工艺对8 mm厚TC4钛合金板微观组织和强度的影响[J]. 金属热处理, 2024, 49(7): 261-266.
[5]	蒙品品, 张晓波. 退火处理对纯铜微观组织及力学性能的影响[J]. 金属热处理, 2024, 49(7): 267-273.
[6]	于娟, 冯朝辉, 陈高红, 伍镭. 阳极氧化对酸性盐雾环境中铝锂合金性能的影响[J]. 金属热处理, 2024, 49(7): 281-286.
[7]	刘阳, 高茗, 马莉, 胡祯, 孙中梅, 张士震. 低成本无钒热轧钢筋HRB400E的生产工艺优化[J]. 金属热处理, 2024, 49(7): 294-300.
[8]	艾根根, 姜凤阳, 思芳, 刘江南, 卫娜, 王俊勃. 退火工艺对高锰TWIP钢组织及耐蚀性能的影响[J]. 金属热处理, 2024, 49(7): 313-321.
[9]	张新宇, 隋欣, 罗旭东, 程素玲, 张义, 陈金生, 张伟. 汽车用6014铝合金冷轧板的热处理工艺[J]. 金属热处理, 2024, 49(7): 331-335.
[10]	刘怡然, 李磊. 退火工艺对SLM AlSi10Mg合金拉伸变形行为的影响[J]. 金属热处理, 2024, 49(6): 23-28.
[11]	薛峰, 耿志宇, 刘旭明, 毕廉, 周天鹏. 高强双相钢DP980成形极限性能及微观组织分析[J]. 金属热处理, 2024, 49(6): 164-168.
[12]	钟振东, 樊金桃, 王付胜, 陈亚军. 电磁场对铝合金组织及性能影响的研究进展[J]. 金属热处理, 2024, 49(6): 261-269.
[13]	郭炜, 管博, 陈威, 吴丹. 多次闭模压缩对不同Si含量AZ31合金显微组织和耐磨性能的影响[J]. 金属热处理, 2024, 49(5): 36-39.
[14]	王泽龙, 冯兆龙, 李伟, 孙思博. 冷塑性变形及退火工艺对Ti45Nb合金组织和性能的影响[J]. 金属热处理, 2024, 49(5): 112-117.
[15]	张增光, 史吉鹏, 王新宇, 刘艳梅, 杨立新, 康冲, 刘刚. 退火温度对Ti60钛合金激光焊接接头组织与力学性能的影响[J]. 金属热处理, 2024, 49(5): 130-134.