典型文献
The comparison of multi-layer narrow-gap laser and arc welding of S32101 duplex stainless steel
文献摘要：
Multi-layer narrow-gap welding of thick S32101 duplex stainless steel was conducted using laser welding with beam wobble process.The phase transition,grain size,phase proportion and crystal texture of welded joint were also studied and compared with gas metal arc welding process.The microhardness and tensile strength were measured and fracture surface was analyzed to evaluate the mechanical properties of welded joints.The results showed that beam wobble technology improved the misalignment of laser beam and filler wire in nar-row groove and helped to avoid incomplete fusion defects.Compared to arc welding process,the groove size and heat input were reduced,while welding efficiency was increased.The faster cooling rate and lower temperature gradient of laser wobble welding favored grain refine-ment,while the austenite content in weld zone decreased.Both the beam wobble and swing arc were conducive to stir weld pool,optimizing the weld microstructure and joint formation.The microstructural variance in various weld passes was caused by the heat input and heat dis-sipation ability.The microhardness of laser welded joint was lower,while the tensile strength and elongation percentage were higher.The fracture surface of arc welded joint was featured with shallower dimples and cleavage steps.
文献关键词：
中图分类号：
作者姓名：
Li Junzhao;Wen Kai;Sun Qingjie;Liu Yibo;Kong Bin;Zeng Xianshan
作者机构：
HuNan Xiangtou Goldsky New Materials Co.,LTD,Yiyang 413000,China;Hunan Xiangtou Goldsky Titanium Metal Co.,LTD.,Changsha 410205,China;Shandong Provincial Key Laboratory of Special Welding Technology,Harbin Institute of Technology at Weihai,Weihai 264209,China
文献出处：
引用格式：
[1]Li Junzhao;Wen Kai;Sun Qingjie;Liu Yibo;Kong Bin;Zeng Xianshan-.The comparison of multi-layer narrow-gap laser and arc welding of S32101 duplex stainless steel)[J].中国焊接（英文版）,2022(04):37-47
A类：
sipation
B类：
comparison,multi,layer,narrow,gap,laser,arc,welding,S32101,duplex,stainless,steel,Multi,thick,was,conducted,using,beam,wobble,process,phase,transition,grain,size,proportion,crystal,texture,welded,were,also,studied,compared,gas,metal,microhardness,tensile,strength,measured,fracture,surface,analyzed,evaluate,mechanical,properties,joints,results,showed,that,technology,improved,misalignment,filler,wire,groove,helped,avoid,incomplete,fusion,defects,Compared,heat,input,reduced,while,efficiency,increased,faster,cooling,rate,temperature,gradient,favored,refine,austenite,content,zone,decreased,Both,swing,conducive,stir,pool,optimizing,microstructure,formation,microstructural,variance,various,passes,caused,by,dis,ability,elongation,percentage,higher,featured,shallower,dimples,cleavage,steps
AB值：
0.516149
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