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6082-T6铝合金搅拌摩擦焊组织演变与力学性能

王希靖,魏学玲,张亮亮

王希靖,魏学玲,张亮亮. 6082-T6铝合金搅拌摩擦焊组织演变与力学性能[J]. 焊接学报, 2018, 39(3): 1-5. DOI: 10.12073/j.hjxb.2018390057
引用本文: 王希靖,魏学玲,张亮亮. 6082-T6铝合金搅拌摩擦焊组织演变与力学性能[J]. 焊接学报, 2018, 39(3): 1-5. DOI: 10.12073/j.hjxb.2018390057
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WANG Xijing, WEI Xueling, ZHANG Liangliang. Microstructural evolution and mechanical properties of friction stir welded 6082-T6 aluminum alloy[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2018, 39(3): 1-5. DOI: 10.12073/j.hjxb.2018390057
Citation: WANG Xijing, WEI Xueling, ZHANG Liangliang. Microstructural evolution and mechanical properties of friction stir welded 6082-T6 aluminum alloy[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2018, 39(3): 1-5. DOI: 10.12073/j.hjxb.2018390057
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6082-T6铝合金搅拌摩擦焊组织演变与力学性能

Microstructural evolution and mechanical properties of friction stir welded 6082-T6 aluminum alloy

摘要

    摘要
  • 摘要: 通过透射电子显微镜、扫描电子显微镜、拉伸试验机和显微硬度计对6082-T6铝合金搅拌摩擦焊接头焊缝区组织演变和力学性能进行分层研究. 结果表明，在焊核区上层，材料发生塑性变形，晶格畸变能增加，为降低能量，大量的位错集聚成亚结构边界发生动态回复. 同时在焊接热循环的作用下发生动态再结晶，导致焊缝区上层晶粒细小. 在焊核区下层，主要受到搅拌针搅拌作用，轴肩产热通过扩散过程传递到下层的热量减少，发生动态回复和动态再结晶程度低于焊缝上层，晶粒粗大. 前进侧和后退侧热影响区均出现棒状β′沉淀相. 对应焊缝上、下两层硬度都呈“W”形分布，焊缝上层硬度高于焊缝下层硬度，最小值出现在前进侧. 沿着焊缝长度方向上层和下层的抗拉强度分别为205，186 MPa，呈降低趋势，为韧性断裂.
    Abstract: Microstructure evolution and mechanical proprieties of friction stir welded 6082-T6 aluminum alloy were layered-investigated with transmission electron microscope(TEM), scanning electron microscopy(SEM), tensile test machine and Vickers hardness tester. The results showed that plastic deformation occurred in the upper layer of nugget zone which caused the increase of lattice distortion. Hence a large number of dislocations were accumulated into the substructure boundary with dynamic recovery to reduce energy. The grain at the top part of the weld was fine due to dynamic recrystallization by friction heat and shoulder crashing. The bottom of nugget zone which was mainly affected by stirring of the pin was composed of course grain because fewer heat was diffuse to the bottom and dynamic recrystallization and recovery were decreased correspondingly compared to the upper part of the weld. The rodlikeβ′ phase precipitated at both advancing and retreating side of heat affected zone. The microhardness distribution of both the top and bottom side of the joint along the direction perpendicular to the weld had a W shape. The minimum microhardness value appeaed at the advancing side. The tensile strength of the topside weld along welding direction was higher than that of the bottom side. The tensile strength was 205 MPa and 186 MPa respectively. The fracture mode of the weld was ductile fracture.
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  • [1] 盛建辉, 彭家仁, 李 光, 等. 搅拌摩擦焊工艺及其在地铁铝合金车体上的应用[J]. 电力机车与城轨车辆， 2009, 32(3): 28-31.Sheng Jianhui, Peng Jiaren, Li Guang,et al. Friction stir welding technology and its application on metro aluminum alloy car body[J]. Electric Locomotives & Mass Transit Vehicles, 2009, 32(3): 28-31.[2] 赵亚东, 沈长斌, 刘书华, 等. 6082铝合金搅拌摩擦焊焊缝的电化学腐蚀行为[J]. 焊接学报, 2008, 29(10): 68-71.Zhao Yadong, Shen Changbin, Liu Shuhua,et al. Electrochemical corrosion behavior of friction stir welding weld of 6082 aluminum alloy[J]. Transactions of the China Welding Institution, 2008, 29(10): 68-71.[3] Knipstrom K E, Pekkari B. Friction stir welding process goes commerial[J]. Welding Joint, 1997, 76(9): 55-57.[4] 孙乎浩, 薛松柏, 冯晓梅, 等. 舰船用6082铝合金TIG焊组织与力学性能分析[J]. 焊接学报, 2014, 35(2): 91-94.Sun Huhao, Xue Songbai, Feng Xianmei,et al. Microstructure and mechanical properties of weld joint of marine 6082 aluminum alloy by TIG welding[J]. Transactions of the China Welding Institution, 2014, 35(2): 91-94.[5] 潘 锐, 王善林, 李建萍, 等. 工艺参数对搅拌摩擦焊变形铝合金接头性能的影响[J]. 焊接学报, 2016, 37(11): 89-92.Pan Rui, Wang Shanlin, Li Jianping,et al. Effect of processing parameters on mechanical properties of aluminum alloy joints welded by friction stir welding[J]. Transactions of the China Welding Institution, 2016, 37(11): 89-92.[6] 戴启雷, 王秀义, 侯振国, 等. 焊接速度对AA6082搅拌摩擦焊接头根部缺陷及性能的影响[J]. 焊接学报, 2015, 36(8): 27-30.Dai Qilei, Wang Xiuyi, Hou Zhenguo,et al. Effect of travel speed on the root-defects and mechanical properties of friction stir welded A6082 alloy joint[J]. Transactions of the China Welding Institution, 2015, 36(8): 27-30.[7] Mishra R S, Ma Z Y. Friction stir welding and processing[J]. Materials Science and Engineering R, 2005, 50(1-2): 1-78.[8] 宫文彪, 田红娇, 刘 威, 等. 6082-T6铝合金厚板搅拌摩擦焊沿厚度方向性能变化[J]. 稀有金属材料与工程, 2012, 41(2): 854-857.Gong Wenbiao, Tian Hongjiao, Liu Wei,et al. Mechanical properties change along the thickness diction of thick aluminium alloy 6082-T6 plate[J]. Rare Materials and Engineering, 2012, 41(2): 856-857.[9] Zang H W, Eresen S J, Jansen J. Structure determination of Mg9Si5particles in Al by dynamic electron diffraction studies[J]. Science, 1997, 277(5330): 1221-1225.[10] 杨文超, 汪明朴, 盛晓菲，等. 轨道交通车辆用6005A合金板材时效析出及硬化行为研究[J]. 金属学报, 2010, 46(12): 1481-1487.Yang Wenchao, Wang Mingpu, Sheng Xiaofei,et al. Study of the aging precipitation a hardening behavior of 6005 alloy sheet for rall traffic vehicle[J]. Acta Metallurgica Sinica, 2010, 46(12): 1481-1487.[11] Wade M, Reynolds A P. Friction stir weld nugget temperature asymmetry[J]. Science and Technology of Welding and Jointing, 2010, 15(1): 64-69.[12] Frigaard ?, Grong ?, Midling O T. A process model for friction stir welding of age hardening aluminum alloys[J]. Metallurgical & Materials Transactions A, 2001, 32(5): 1189-1200.[13] 王希靖， 孙桂苹， 张 杰. 焊后热处理对高强铝合金搅拌摩擦焊接头的影响[J]. 中国有色金属学报, 2009, 19(3): 484-489.Wang Xijing, Sun Guiping, Zhang Jie. Effects of heat treatment after welding on friction stir welding joints of high-strength aluminum alloy[J]. The Chinese Journal of Nonferrous Metals, 2009, 19(3): 484-489.[14] 许晓娥. 强变形诱导铝合金析出相低温回溶现象及应用基础研究[D]. 长沙： 中南大学， 2008.[15] 陈江华, 刘春辉. AlMgSi(Cu)合金中纳米析出相的结构演变[J]. 中国有色金属学报, 2010, 21(10): 2352-2360.Chen Jianghua, Liu Chunhui. Microstructure evolution of precipitates in AlMgSi(Cu) alloys[J]. The Chinese Journal of Nonferrous Metals, 2010, 21(10): 2352-2360.[16] 董 鹏， 孙大千， 李洪梅， 等. 6005A-T6铝合金搅拌摩擦焊接头组织与力学性能特征[J]. 材料工程, 2012(4): 27-31.Dong Peng, Sun Daqian, Li Hongmei,et al. Microstructural and mechanical characteristics of friction stir welded 6005A-T6 aluminum alloy[J]. Journal of Materials Engineering, 2012(4): 27-31.
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  • 收稿日期:  2017-07-18

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