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). The results indicate that the metallographic structure of welded joint formed by brass welding rod is (α+β) phase brasses. The brass-welded joint was corroded seriously in seawater because.... And the metallographic structure of welded joint formed by cupronickel welding rod is single α-phase, which is Cu-Ni-Zn solid solution alloy. The structure has no change before and after immersing......
Influencing mechanism of pre-existing nanoscale Al5Fe2 phase on Mg-Fe interface in friction stir spot welded Al-free ZK60-Q235 jointR.Z.Xu1,2,Q.Yang3,4,D.R.Ni1,B.L.Xiao1,C.Z.Liu2,Z.Y.Ma11. Institute... FSSW joint of ZK60 Mg alloy and Q235 steel with a hot-dipped aluminum(Al)-containing zinc(Zn) coating was succes s fully realized.The detailed micro structural examinations proved that Al5 Fe2 phase......
On the heterogeneous microstructure development in the welded joint of 12MnNiVR pressure vessel steel subjected to high heat input electrogas weldingYang Shen1,Ju Leng1,Cong Wang1,21. School of Metallurgy,Northeastern University摘 要:Microstructure features of 12 MnNiVR pressure vessel steel welded joint deposited by the high heat input electrogas welding......
; Morphologies of cross(a) and longitudinal section(b) of non-heat-treated welded joint 2.2.2 NTWJ焊缝的成分分布 表3所列为图3中NTWJ焊缝横截面上,中,下部(U,M,L)各区域的Mo,Nb,Al和V含量及对应[Mo]eq.结果表明焊缝上,中,下部成分仅小幅波动,但从焊缝边缘到中部Al和V含量的趋势... of welded seam in non-heat-treatment welded joint 表3 图3所示NTWJ焊缝横截面各区域的成分及[Mo]eq Table 3 Compositions and [Mo]eq of areas shown in Fig. 3 on cross section of welded seam in non-heat-treatment......
Trans. Nonferrous Met. Soc. China 26(2016) 2595-2602 Fatigue behavior of AZ31B magnesium alloy electron beam welded joint based on infrared thermography Hong-wei YANG1, Ze-qin CUI1,2, Wen-xian... magnesium alloy electron beam welded joint undergoing cyclic loading was investigated by infrared thermography. Temperature evolution throughout a fatigue process was presented and the mechanism......
304不锈钢氩弧焊焊剂的研究 余巍1,鲁晓声1,张京海1 (1.洛阳船舶材料研究所 洛阳 471039) 摘要:研制了一种用于奥氏体不锈钢焊接的氩弧焊焊剂,并对该焊剂进行了不锈钢对接板的焊接工艺试验.试验结果表明,采用氩弧焊焊剂可以大幅增加熔深,能够一次焊透8 mm厚304不锈钢对接板,所获得的焊接接头具有良好的力学性能及耐晶间腐蚀性能. 关键词:不锈钢; 氩弧焊焊剂; 焊接接头; 熔深; Stainless steel GTAW flux Welded joint Penetration depth; [全文内容正在添加中] ......
the temperature gradient is great, and defects of the welding are easily produced in this zone. Temperature change at the end of the welded joint is as layer variation, the local serious defects are not easy...SIMULATION ON TEMPERATURE FIELD OF FRICTION STIR WELDED JOINTS OF 2024-T4 Al S.Q. Yang1,J.C. Yan1,S.X. Lü1,W.G. Li1 (1.State Key Laboratory of Advanced Welding Production Technology,Harbin......
Secondary Austenite Morphologies in Fusion Zone of Welded Joint after Postweld Heat Treatment with a Continuous Wave LaserHeping Liu and Xuejun Jin School of Materials Science and Engineering,Shanghai Jiao Tong University,Shanghai 200240,China摘 要:In order to improve the weldability of duplex stainless steels,obtaining more secondary austenite......
Press and Springer-Verlag GmbH Germany, part of Springer Nature 2018 Abstract: The microstructure and mechanical properties of dissimilar pinless friction stir spot welded joint of 2A12 aluminum alloy... of welded joints gradually rises with the increase in dwell time. At the same dwell time, the maximum load of the welded joint increases with the increase of the rotational speed. In addition, optimal......
welded joint(DMWJ) have been calibrated, and a micromechanical analysis of in-plane constraint effects on the local fracture behavior of two cracks, which located in the weakest regions of the DMWJ, has...Micromechanical Analysis of In-Plane Constraint Effect on Local Fracture Behavior of Cracks in the Weakest Locations of Dissimilar Metal Welded JointJie YangSchool of Energy and Power Engineering......
