典型文献
Analysis of local microstructure and strengthening mechanisms in adjustable-gap bobbin tool friction stir welds of Al–Mg
文献摘要：
The bobbin tool friction stir welding process was used to join 6 mm thick 5A06 aluminum alloy plates. Optical microscope was used to characterize the microstructure. The electron backscatter diffraction (EBSD) identified the effect of non-homogeneous microstructure on the tensile properties. It was observed that the grain size in the top of the stir zone (SZ) is smaller than that in the centre region. The lowest ratio of recrystallization and density of the geometrically-necessary dislocations (GNDs) in the SZ was found in the middle near the thermo-mechanic-ally affected zone (TMAZ) being 22％ and 1.15 × 10?13 m?2, respectively. The texture strength of the heat-affected zone (HAZ) is the largest, followed by that in the SZ, with the lowest being in the TMAZ. There were additional interfaces developed which contributed to the strength-ening mechanism, and their effect on tensile strength was analysed. The tensile tests identified the weakest part in the joint at the interfaces, and the specific reduction value is about 93 MPa.
文献关键词：
中图分类号：
作者姓名：
Dong Wu;Wenya Li;Qiang Chu;Yangfan Zou;Xichang Liu;Yanjun Gao
作者机构：
State Key Laboratory of Solidification Processing,Shaanxi Key Laboratory of Friction Welding Technologies,Northwestern Polytechnical University,Xi'an710072,China;Capital Aerospace Machinery Company,Beijing 100076,China
文献出处：
引用格式：
[1]Dong Wu;Wenya Li;Qiang Chu;Yangfan Zou;Xichang Liu;Yanjun Gao-.Analysis of local microstructure and strengthening mechanisms in adjustable-gap bobbin tool friction stir welds of Al–Mg)[J].矿物冶金与材料学报,2022(08):1589-1595
A类：
bobbin,GNDs
B类：
Analysis,local,microstructure,strengthening,mechanisms,adjustable,gap,tool,friction,stir,welds,Mg,welding,process,was,used,thick,5A06,aluminum,alloy,plates,Optical,microscope,characterize,electron,backscatter,diffraction,EBSD,identified,effect,homogeneous,tensile,properties,It,observed,that,grain,size,top,zone,SZ,smaller,than,centre,region,lowest,ratio,recrystallization,density,geometrically,necessary,dislocations,found,middle,near,thermo,mechanic,affected,TMAZ,being,respectively,texture,heat,HAZ,largest,followed,by,There,were,additional,interfaces,developed,which,contributed,their,analysed,tests,weakest,part,joint,specific,reduction,value,about
AB值：
0.552766
相似文献
机标中图分类号，由域田数据科技根据网络公开资料自动分析生成，仅供学习研究参考。
