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Addition of cerium and yttrium to ferritic steel weld metal to improve hydrogen trapping efficiencySung Jin Kim1,Kang Mook Ryu2,Min-suk Oh31. Department of Advanced Materials Engineering,Sunchon...">The applicability of Ce and Y as promising candidate elements to form irreversible traps in weld metal was investigated by thermal desorption spectroscopy(TDS) with gas chromatography(GC). The precise nature......
Microstructure Characterization of the Fusion Zone of an Alloy 600-82 Weld JointCheng Ma1,Jinna Mei2,Qunjia Peng1,Ping Deng1,En-Hou Han1,Wei Ke11. Key Laboratory of Nuclear Materials and Safety... of the fusion zone of an Alloy 600-82 weld joint was conducted,with focus on the weld residual strain distribution and the comparison of the microstructure of heat affected zone(HAZ) with that of cold worked......
Effects of Weaving Laser on Weld Microstructure and Crack for Al 6k21-T4 AlloyB.H.Kim1,W.T.Oh2,C.H.Kim3,J.H.Kim3,Y.S.Kim4,Y.H.Park11. Department of Materials Science and Engineering,Pusan National... Technology Service,KITECH,Jisa-dong,Ganseo-gu,Busan 618-230,Korea摘 要:For Al 6k21-T4 overlap weld joint,the shear-tensile strength by using the weaving......
Analytical Investigation of Prior Austenite Grain Size Dependence of Low Temperature Toughness in Steel Weld MetalH.Terasaki1,M.Sato2,Y.Komizo11. Joining and Welding Research Institute,Osaka...="ChDivSummary">Prior austenite grain size dependence of the low temperature impact toughness has been addressed in the bainitic weld metals by in situ observations.Usually,decreasing the grain size......
Improving weld formability by a novel dual-rotation bobbin tool friction stir weldingF.F.Wang1,2,3,W.Y.Li1,Q.Wen11. State Key Laboratory of Solidification Processing, Shaanxi Key Laboratory... was tried to weld 3.2 mm thick aluminum-lithium alloy sheets. The metallographic analysis and torque measurement were carried out to characterize the weld formability. Experimental results show that compared......
Evolution of γ’ Particles in Ni-Based Superalloy Weld Joint and Its Effect on Impact Toughness During Long-Term Thermal ExposureXian-Kai Fan1,Fu-Quan Li2,Lei Liu3,Hai-Chao Cui1,Feng-Gui Lu1,Xin-Hua... on γ’ particles evolution and impact toughness in the weld joint of Nimonic 263(N263)superalloy were deeply studied at 750℃.Results showed that the precipitates in the weld metal were mainly composed......
Xi-lin, LU Hai, ZHANG Hao, LI Ning (Luoyang Ship Material Research Institute, Luoyang 471039, China) Abstract: The weld joints were treated by four methods of relieving stress, i.e., post annealing, aging treatment vibrantly after welding, ultrasonic impact layer by layer during welding, hammering layer by layer during welding, and they were compared with weld joints in titanium without......
Effect of process parameters of pulsed current tungsten inert gas welding on weld pool geometry of titanium weldsM.Balasubramanian1,V.Jayabalan2,V.Balasubramanian31. Department of Mechanical...,Annamalai University摘 要:The effects of pulsing current parameters on weld pool geometry namely front height, back height, front width and back width of pulse......
Effect of weld line positions on the tensile deformation of two-component metal injection mouldingAnchalee Manonukul1,Sukrit Songkuea1,Pongporn Moonchaleanporn11. National Metal and Materials... for engineering functionally graded components. In this study, mono-and two-component tensile test specimens were metal injection moulded. Three different weld line positions were generated in the two......
Fig. 4 Macro topography parameters of Invar alloy weld with different laser powers 图5 不同焊缝层母材,热影响区及焊缝微观形貌 Fig. 5 Microscopic structure of base metal, HAZ and weld beam at different weld layers 图6所示为Invar合金激光-电弧复合焊2号焊接接头试样各层焊缝的微观形貌.可以看到打底层,填充层及盖面层均可按晶粒形态不同划分为两个区域,即狭长的焊缝中心1区和偏离焊缝中心2区.1区主要为沿竖直方向分布的柱状树枝晶,2区则多以胞状树枝晶为主,方向基本垂直于坡口壁面,与焊缝最快散热方向相一致.如图6(a)~(d)所示,不同焊缝层的焊缝中心区宽度差异明显:打底层的焊缝1区几乎不可......
