Effect of Annealing Temperature on Microstructure and Properties of 5052/AZ31B Explosive Composite Plate
ZHANG Zhen1, DING Xu2,*, TIAN Xiaodong1,*, SHI Haojie1, LUO Hailong3
1 Engineering Research Center of Transportation Materials of Ministry of Education, School of Materials Science and Engineering, Chang'an University, Xi'an 710064, China 2 Research Institute of Advanced Materials, Xi'an Aeronautical University, Xi'an 710077, China 3 Shaanxi Ruisen Metal Composites Co., Ltd., Xi'an 713199, China
Abstract: The microstructure and properties of 5052/AZ31B explosive welded composite plates were studied after annealing at 300 ℃, 350 ℃ and 400 ℃.The results show that magnesium atom is easy to diffuse to the aluminum side during annealing, and the diffusion layer is mainly located at the aluminum side near the interface. With the annealing temperature rising, the diffusion layer becomes thicker. The phase composition at the interface before annealing was Mg matrix, Al matrix, Mg2Al3 and Mg17Al12, and they remained unchanged after annealing at 300 ℃, 350 ℃ and 400 ℃. When the annealing temperature rises from 300 ℃ to 400 ℃, the tensile strength of the composite plate gradually decreases, while the reduction of area and the elongation after fracture increase. The morphology of the tensile fracture shows that the aluminum side of the composite plate presents ductile fracture while the magnesium side presents brittle fracture. The shear strength of the interface bonding zone of the composite plate is respective 50.88 MPa, 33.15 MPa and 19.50 MPa after annealing at 300 ℃, 350 ℃ and 400 ℃,which is significantly lower than that before annealing(98.44 MPa). The hardness of the interface of the composite plate is respectively 158.1HV, 146.3HV and 152.6HV after annealing at 300 ℃, 350 ℃ and 400 ℃, which is significantly higher than that before annealing(129.6HV), and the change of hardness at the magnesium side is great. The high hardness of the interface bonding zone after annealing is due to the formation of the hard and brittle intermetallic compounds Mg2Al3 and Mg17Al12 in the diffusion layer.
1 Priel E, Ungarish Z, Navi N U. Journal of Materials Processing Technology, 2016, 236(236), 103. 2 Yan Y B, Zhang Z W, Shen W, et al. Materials Science and Engineering A, 2009, 527(9), 2241. 3 Li Y J, Liu P, Wang J, et al. Vacuum, 2007, 82(1), 15. 4 Wu K, Chang H, Maawad E, et al. Materials Science and Engineering A, 2010, 527(13), 3073. 5 Jiang Y F. Investigation on hardening mechanism in the TA2/316L explosive welding bonding.Master's Thesis, Shenyang Ligong University, China, 2015(in Chinese). 姜岳峰. TA2/316L爆炸焊接结合区硬化机理研究. 硕士学位论文, 沈阳理工大学, 2015. 6 Fan Y X, Wu Z S, Li Y, et al. Hot Working Technology, 2018, 47(4), 134(in Chinese). 范祎欣, 吴志生, 李岩, 等.热加工工艺, 2018, 47(4), 134. 7 Wu J Q. Study on the interface microstructure and mechanical properties for the Mg/Ti composite plates with explosive welding.Master's Thesis, Taiyuan University of Technology, China, 2015(in Chinese). 武佳琪. 镁/钛异种金属爆炸焊接界面微观组织及性能的研究. 硕士学位论文, 太原理工大学, 2015. 8 Zhai W G. Properties and bonding interface microstructure of titanium-steel and copper-steel composite plates with explosive welding. Master's Thesis, Nanjing University of Aeronautics and Astronautics,China, 2013(in Chinese). 翟伟国. 钛-钢和铜-钢爆炸复合板的性能及界面微观组织结构.硕士学位论文, 南京航空航天大学, 2013. 9 Zhang N, Wang W X, Cao X Q, et al. Materials and Design, 2015, 65, 1100. 10 Wu Q, Yang S Y, Jiang W, et al. Rare Metal Materials and Engineering, 2017, 46(6), 1662(in Chinese). 吴琼, 杨素媛, 蒋雯, 等.稀有金属材料与工程, 2017, 46(6), 1662. 11 Murray J L. Bulletin of Alloy Phase Diagrams, 1982, 3(1), 61. 12 Yan Y B, Wang J H, Shen X P, et al. The Chinese Journal of Nonferrous Metals, 2010, 20(4), 674(in Chinese). 颜银标, 王进华, 申小平,等. 中国有色金属学报, 2010, 20(4), 674. 13 Liu K C. Study on diffusion behavior and mechanical properties of alumi-nium-magnesium and magnesium-scandium. Master's Thesis, Guangxi University, China, 2019(in Chinese). 刘科成. Al-Mg及Mg-Sc扩散行为和力学性能的研究. 硕士学位论文, 广西大学, 2019. 14 Wang H, Liu L M, Liu X J. Transactions of the China Welding Institution, 2005(7),6(in Chinese). 王恒, 刘黎明, 柳绪静.焊接学报, 2005(7), 6. 15 Macwan A, Jiang X Q, Li C, et al. Materials Science and Engineering A, 2013, 587, 344. 16 Cheng K M, Xu H X, Ma B C, et al. Journal of Alloys and Compounds, 2019, 810, 151878. 17 Zhou Y G, Yan Z F, Wang Z N, et al. Hot Working Technology, 2016, 45(8), 93(in Chinese). 周亚国, 闫志峰, 王钟楠,等. 热加工工艺, 2016, 45(8), 93. 18 Jiang H T, Yan X Q, Liu J X, et al. Transactions of Nonferrous Metals Society of China, 2014, 24(3), 697. 19 Durgutlu A, Gülenç B, Findik F. Materials and Design, 2005, 26(6), 497. 20 Li J P, Li Z P, Mao D H, et al. Journal of Central South University (Science and Technology), 2012, 43(10), 3793(in Chinese). 李建平, 李志鹏, 毛大恒, 等.中南大学学报(自然科学版), 2012, 43(10), 3793.
渝公网安备50019002502923号 版权所有：《材料导报》编辑部
2022, Vol. 36 
