Microstructure and mechanical properties of 7075-T6 aluminum alloy joint by welding with reinforcement rolling

WANG Zejie; SONG Gang; LIU Liming

doi:10.12073/j.hjxb.20231212001

TRANSACTIONS OF THE CHINA WELDING INSTITUTION > 2025 > 46(3): 1-8. > DOI: 10.12073/j.hjxb.20231212001

WANG Zejie, SONG Gang, LIU Liming. Microstructure and mechanical properties of 7075-T6 aluminum alloy joint by welding with reinforcement rolling[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2025, 46(3): 1-8. DOI: 10.12073/j.hjxb.20231212001

Citation:

PDF (38644 KB)

Microstructure and mechanical properties of 7075-T6 aluminum alloy joint by welding with reinforcement rolling

Liaoning Province Key Laboratory of Material Welding and Joining Technology, Dalian University of Technology, Dalian, 116024, China

More Information

Received Date: December 11, 2023
Available Online: February 14, 2025

Graphical Abstract

Abstract

Abstract

To improve the mechanical properties of 7075-T6 aluminum alloy fusion welded joints, the welding with reinforcement rolling process was proposed. In-situ rolling of the weld reinforcement was performed during the welding process using a self-designed welding with rolling device. Vickers hardness tester and universal testing machine were used to show the hardness distribution and tensile strength of the joint at different rolling temperatures. The microstructure of the fusion zone (FZ) and heat-affected zone (HAZ) were observed by scanning electron microscope configured with EDS and EBSD. The results show that the hardness of the FZ and the solid solution region in HAZ of the joints can be significantly improved by the WR process, and the highest strength coefficient of the joints reaches about 81.4%, which is 41.9% higher than that of the conventional arc welded joints. Mechanical property is significantly improved due to the increase in low angle grain boundaries and dislocation density, with less correlation to grain size and second phase distribution.
- welding with reinforcement rolling,
- 7075-T6 aluminum alloy,
- joint softening,
- mechanical properties,
- microstructure

FullText(HTML)

References (15)

References

[1]	Zhang L, Li X, Nie Z, et al. Softening behavior of a new Al-Zn-Mg-Cu alloy due to TIG welding[J]. Journal of Materials Engineering and Performance, 2016, 25: 1870 − 1879. doi: 10.1007/s11665-016-2014-7
[2]	Zhong S, Han S, Chen J, et al. Microstructure and properties of 7075 aluminum alloy welding joint using different filler metals[J]. Materials Today Communications, 2022, 31: 103260. doi: 10.1016/j.mtcomm.2022.103260
[3]	吴圣川, 张卫华, 焦汇胜, 等. 激光-电弧复合焊接7075-T6铝合金接头软化行为[J]. 中国科学: 技术科学, 2013, 43(7): 785 − 792. Wu Shengchuan, Zhang Weihua, Jiao Huisheng, et al. Softening behavior of laser-arc hybrid welded 7075-T6 aluminum alloy joint[J]. Scientia Sinica(Technologica), 2013, 43(7): 785 − 792.
[4]	Ma G, Yue K, Liu D, et al. Cracking susceptibility control of 7075 aluminum alloy in pulsed laser welding with filler strip[J]. Optics & Laser Technology, 2022, 152: 108119.
[5]	徐腾, 张春芝, 鲁宽亮, 等. 7075铝合金MIG焊接头金相组织、力学性能和耐蚀性的应力敏感性[J]. 焊接学报, 2021, 42(7): 51 − 59. doi: 10.12073/j.hjxb.20210212001 Xu Teng, Zhang Chunzhi, Lu Kuanliang, et al. Microstructure, mechanical properties and stress dependence of corrosion resistance for MIG welded 7075 aluminum joint[J]. Transactions of the China Welding Institution, 2021, 42(7): 51 − 59. doi: 10.12073/j.hjxb.20210212001
[6]	Li S, Xu W, Xiao G, et al. Effects of Sc on laser hot-wire welding performance of 7075 aluminum alloy[J]. Materials Research Express, 2020, 7(10): 106506. doi: 10.1088/2053-1591/abbd0a
[7]	陈超, 陈芙蓉, 张慧婧. 时效对7A52铝合金激光焊接头组织性能的影响[J]. 焊接学报, 2017, 38(11): 66 − 70. doi: 10.12073/j.hjxb.20160105004 Chen Chao, Chen Furong, Zhang Huijing. Effect of aging treatment on the weld quality during laser welding of 7A52 aluminum alloy[J]. Transactions of the China Welding Institution, 2017, 38(11): 66 − 70. doi: 10.12073/j.hjxb.20160105004
[8]	Zhang C, Gao M, Zeng X. Workpiece vibration augmented wire arc additive manufacturing of high strength aluminum alloy[J]. Journal of Materials Processing Technology, 2019, 271: 85 − 92. doi: 10.1016/j.jmatprotec.2019.03.028
[9]	Zhang H, Chen C. Effect of pulse frequency on weld appearance of Al alloy in pulse power ultrasonic assisted GMAW[J]. Journal of Manufacturing Processes, 2021, 71: 565 − 570. doi: 10.1016/j.jmapro.2021.09.047
[10]	Chen J, Wei Y, Zhan X, et al. Weld profile, microstructure, and mechanical property of laser-welded butt joints of 5A06 Al alloy with static magnetic field support[J]. The International Journal of Advanced Manufacturing Technology, 2017, 92: 1677 − 1686. doi: 10.1007/s00170-017-0268-3
[11]	杨建国, 王佳杰, 董志波, 等. 随焊冲击碾压整形对低匹配等承载接头硬度与残余应力的影响[J]. 焊接学报, 2013, 34(3): 37 − 40. Yang Jianguo, Wang Jiajie, Dong Zhibo, et al. Influence of weld shaping with trailing impact rolling on hardness and residual stress of under-matched equal load-carrying joint[J]. Transactions of the China Welding Institution, 2013, 34(3): 37 − 40.
[12]	Wang Z J, Fan X Y, Zhang Z D, et al. Microstructure and mechanical properties of 7075-T6 aluminum alloy plates by welding with weld reinforcement rolling[J]. Materials Science and Engineering: A, 2024, 889: 145854. doi: 10.1016/j.msea.2023.145854
[13]	Cheng J W, Song G, Zhang Z D, et al. Improving heat-affected zone softening of aluminum alloys by in-situ cooling and post-weld rolling[J]. Journal of Materials Processing Technology, 2022, 306: 117639. doi: 10.1016/j.jmatprotec.2022.117639
[14]	Jin Y H, Chen Y S, Ma Y M, et al. Fatigue crack propagation of 7050 aluminum alloy FSW joints after surface peening[J]. China Welding, 2023, 32(1): 18 − 26.
[15]	Wu S C, Yu X, Zuo R Z, et al. Porosity, element loss, and strength model on softening behavior of hybrid laser arc welded Al-Zn-Mg-Cu alloy with synchrotron radiation analysis[J]. Welding Journal, 2013, 92(3): 64 − 71.

[1]	ZHOU Xin, HUANG Ruisheng, LIANG Xiaomei, TENG Bin. Analysis of in-situ heat treatment on microstructure and mechanical properties by quadruple-electrode gas tungsten arc additive manufacturing of 00Cr13Ni5Mo stainless steel[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION. DOI: 10.12073/j.hjxb.20240202001
[2]	ZHENG Wenjian, LI Zhengyang, WANG Xinghua, GONG Xuhui, YAN Dejun, LAI Shaobo, YANG Jianguo. Effect of heat conduction mode on microstructure and properties of 800 MPa class marine high strength steel fabricated by wire arc additive manufacturing[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2024, 45(5): 38-46. DOI: 10.12073/j.hjxb.20230605004
[3]	REN Xianghui, LIANG Wenqi, WANG Ruichao, HAN Shanguo, WU Wei. Effects of different welding modes on microstructure and mechanical properties of 316 stainless steel by wire arc additive manufacturing[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2024, 45(4): 79-85, 92. DOI: 10.12073/j.hjxb.20230413002
[4]	LI Ke, NIU Ben, PAN Linlin, YI Jianglong, ZOU Xiaodong. Effect of heat input on microstructure and mechanical properties of wire arc additive manufactured super duplex stainless steel[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2023, 44(10): 94-101. DOI: 10.12073/j.hjxb.20221214003
[5]	WANG Qiang, WANG Leilei, GAO Zhuanni, YANG Xingyun, ZHAN Xiaohong. Microstructure and properties of 316L stainless steel fabricated by speed arc wire arc additive manufacturing[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2023, 44(10): 86-93. DOI: 10.12073/j.hjxb.20220524001
[6]	FENG Yuehai, TANG Ronghua, LIU Siyu, CHEN Qi. Microstructures and mechanical properties of stainless steel component deposited with 308L wire by hot wire plasma arc additive manufacturing process[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2021, 42(5): 77-83. DOI: 10.12073/j.hjxb.20200512001
[7]	GUO Shun, WANG Pengxiang, ZHOU Qi, ZHU Jun, GU Jieren. Microstructure and mechanical properties of bimetallic intertexture structure fabricated by plasma arc additive manufacturing[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2021, 42(3): 14-19. DOI: 10.12073/j.hjxb.20201125004
[8]	LIU Liming, HE Yajing, LI Zongyu, ZHANG Zhaodong. Research on microstructure and mechanical properties of 316 stainless steel fabricated by arc additive manufacturing in different paths[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2020, 41(12): 13-19. DOI: 10.12073/j.hjxb.20200806001
[9]	CHEN Xiaohui, ZHANG Shuquan, RAN Xianzhe, HUANG Zheng. Effect of arc power on microstructure and mechanical properties of austenitic stainless steel 316L fabricated by high efficient arc additive manufacturing[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2020, 41(5): 42-49. DOI: 10.12073/j.hjxb.20190818001
[10]	WANG Xiaoguang, LIU Fencheng, FANG Ping, WU Shifeng. Forming accuracy and properties of wire arc additive manufacturing of 316L components using CMT process[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2019, 40(5): 100-106. DOI: 10.12073/j.hjxb.2019400135

Cited By

Cited by

Periodical cited type(1)

魏守征，饶文姬，段庆阳，李志勇，张英乔. 背面焊缝激光重熔处理对Ti/Al高速FA-MIG焊接头组织性能的影响. 航空制造技术. 2024(19): 117-124 .

Other cited types(0)

Get Citation

PDF

XML

Article views (92) PDF downloads (38) Cited by(1)

Turn off MathJax

Article Contents

Abstract

References

Microstructure and mechanical properties of 7075-T6 aluminum alloy joint by welding with reinforcement rolling