扫 描 看 全 文
引用
何春华，张标，尹宝福，等.5059铝镁合金TIG焊接接头组织性能研究［J］.电焊机，2023，53（8）：107-114.
HE Chunhua, ZHANG Biao, YIN Baofu, et al.Study on Microftructure and Properties of 5059 Al-Mg Alloy TIG Welded Joint[J].Electric Welding Machine, 2023, 53(8): 107-114.
通过开展5059铝镁合金4 mm自动TIG焊对比试验，当热输入为13.8 kJ/cm时，焊缝组织为尺寸较大的等轴晶组织，晶内呈树支状生长，平均晶粒度约为2.56级，焊缝区域能谱（EDS）发现第二相含有7.78%Mg、9.20%Mn，接头的抗拉强度低于330 MPa。当降低热输入为12.5 kJ/cm时，通过调整焊接压力架工装的工作状态，保证焊接试板有效压紧，提高焊缝冷却速度，焊缝组织为尺寸较小的等轴晶组织，呈条状规则排列，平均晶粒度约为4.91级，焊缝区域能谱（EDS）发现第二相含有11.10%Mg、8.86%Mn，接头中形成含有Mg、Mn的金属化合物强化相，弥散地分布在铝基体中，且Mg、Mn元素含量较高，焊缝区显微硬度可达到基材显微硬度的90%以上，接头的抗拉强度满足规定值（大于330 MPa）。
Through the comparison test of 5059 Al-Mg alloy 4 mm automatic TIG welding, it is concluded that when the heat input is 13.8 kJ/cm, the weld microstructure is a large equiaxed crystal structure with dendritic growth within the crystal, and the average grain size is about 2.56. The second phase contains 7.78%Mg and 9.20%Mn, according to the energy spectrum (EDS) in the weld zone. The tensile strength of the joint is less than 330 MPa. When the heat input is reduced to 12.5 kJ/cm, by adjusting the working state of the welding pressure frame tool, the welding test plate can be effectively pressed and the weld cooling rate can be improved. The weld microstructure is small equiaxed crystal structure, which is arranged in a regular strip, and the average grain size is about 4.91. It was found that the second phase contained 11.10%Mg and 8.86%Mn, and the joint formed a metal compound strengthening phase containing Mg and Mn, dispersed in the aluminum matrix, and the content of Mg and Mn was high. The microhardness of the weld zone could reach more than 90% of the microhardness of the substrate, and the tensile strength of the joint could meet 330 MPa.
铝镁合金TIG焊热输入晶粒度常温拉伸性能
Al-Mg alloyTIG weldingheat inputgrain size numberroom temperature tensile property
龙伟民，路全彬，何鹏，等.钎焊过程原位合成Al-Si-Cu合金及接头性能［J］. 材料工程， 2016， 44（6）： 17-23.
LONG W M， LU Q B， HE P， et al. In situ synthesis of Al-Si-Cu alloy during brazing process and mechanical property of brazing joint［J］. Journal of Materials Engineering， 2016，44（6）：17-23.
徐锴，武鹏博，梁晓梅，等. 铝合金激光-多股绞合焊丝MIG复合焊特性分析［J］. 焊接学报，2021，42（01）：16-23.
XU K， WU P B， LIANG X M， et al. Analysis of characteristics of aluminum alloy laser multi stranded welding wire MIG hybrid welding［J］. Transactions of the China Welding Institution， 2021， 42（01）：16-23.
方乃文，刘鑫宇，黄瑞生，等.6061-T6铝合金MIG焊接接头根部间隙对其化学成分及组织演化的影响［J］.轻合金加工技术，2020，48（12）：53-57.
FANG N W， LIU X Y， HUANG R S， et al. Effect of root clearance on chemical composition and microstructure evolution of MIG welded Joint of 6061-T6 Aluminum alloy［J］.Light Alloy Processing Technology，2020，48（12）： 53-57.
WANG Z J， ZHANG Z D， LANG Q，et.al. Microstructure evolution and deformation behavior of TIG welded 7075-T6 aluminum alloy followed by partial hot rolling［J］. Journal of Manufacturing Processes， 2023， 94： 524-538.
武鹏博. 5A06铝合金激光-多股绞合焊丝GMAW复合焊接工艺研究［D］. 北京：机械科学研究总院，2021.
WU P B. Technology of 5A06 aluminum alloy laser-GMAW hybrid welding with multi-stranded wire［D］. Beijing：China Academy of Machinery Science and Technology， 2021.
YI T， LIU S D， FANG C， et.al. Eliminating hole defects and improving microstructure and mechanical properties of friction stir welded joint of 2519 aluminum alloy via TIG arc［J］. Journal of Materials Processing Technology， 2022， 310： 117773.
徐锴，武鹏博，李琳琳，等. 铝合金激光-多股绞合焊丝MIG复合焊接头组织与性能分析［J］. 焊接学报，2022，43（11）：43-49.
XU K， WU P B， LI L L， et al. Microstructure and performance analysis of laser-MIG hybrid welding joints of aluminum alloy with multi-stranded wire［J］. Transactions of the China Welding Institution，2022，43（11）：43-49.
WAN Z D， ZHAO Y， WANG Q，et al. Microstructure-based modeling of the PMZ mechanical properties in 2219-T8 aluminum alloy TIG welding joint［J］. Materials & Design， 2022， 223： 111133.
张国军，冯立杰，邱凯，等. 5A06/2A14铝合金TIG焊接接头力学性能与微观组织［J］. 电焊机， 2018， 48（12）： 17-21.
ZHANG G J， FENG L J，QIU K， et al. Microstructure and mechanical properties of 5A06/2A14 aluminum alloy welding-joints［J］.Electric Welding Machine，2018，48（12）： 17-21.
MAGESH M， ARUL K， SUBBURAJ M， et al. Studies on mechanical and morphological of TIG welded aluminum alloy［J］. Materials Today：Proceedings， 2022， 59： 1533-1536.
ZHANG D K， ZHAO Y， DONG M Y， et al. Effects of weld penetration on tensile properties of 2219 aluminum alloy TIG-welded joints［J］. Transactions of Nonferrous Metals Society of China， 2019， 29：1161-1168.
SINGH R， CHAUHAN S， GOPE P C. Influence of notch radius and strain rate on the mechanical properties and fracture behavior of TIG-welded 6061 aluminum alloy［J］. Archives of Civil and Mechanical Engineering， 2016， 16： 513-523.
张雷，龙伟民，鲍丽，等. 2219铝合金直流活性焊接技术［J］.电焊机，2018，48（3）：72-75.
ZHANG L， LONG W M， BAO L， et al. Study of DCSP-TIG welding with activating flux for 2219 aluminum alloy［J］. Electric Welding Machine， 2018， 48（03）： 72-75.
相关作者
相关机构
公网安备11010802024621