典型文献
Enhancing work hardening and ductility in additively manufactured Ti:roles played by grain orientation,morphology and substructure
文献摘要:
A metastable β Ti alloy was additively manufactured by laser powder bed fusion(LPBF).Tensile test-ing along the build direction of the as-LPBF material(LPBF-0°)revealed significant work softening im-mediately following yielding with no uniform deformation.By contrast,substantial work hardening and uniform elongation well over 10%were achieved perpendicular to the build direction(LPBF-90°).Similar effects were obtained in the build direction after super transus heat treatment(LPBF-0°+HT)although the strength was slightly lowered.In addition,the yield drop phenomenon observed in both orientations of the as-LPBF materials disappeared after HT.The enhanced work hardening ability,and thus ductility,can be attributed to increased interactions of slip bands/slip bands owing to additional{112}<111>slip systems becoming operative in LPBF-0°+HT and LPBF-90° while LPBF-0° was dominated by{110}<111>only.The other variations after HT may be related to the coarsening of grain structure and removal of specific substructures in the as-LPBF microstructure.
文献关键词:
中图分类号:
作者姓名:
Ahmad Zafari;Edward Wen Chiek Lui;Mogeng Li;Kenong Xia
作者机构:
Department of Mechanical Engineering,The University of Melbourne,Victoria 3010,Australia;Centre for Additive Manufacturing,School of Engineering,RMIT University,Melbourne,VIC 3000,Australia;Physics of Fluids Group,Max Planck Center for Complex Fluid Dynamics,J.M.Burgers Center for Fluid Dynamics and MESA+Research Institute,Department of Science and Technology,University of Twente,7500AE Enschede,the Netherlands
文献出处:
引用格式:
[1]Ahmad Zafari;Edward Wen Chiek Lui;Mogeng Li;Kenong Xia-.Enhancing work hardening and ductility in additively manufactured Ti:roles played by grain orientation,morphology and substructure)[J].材料科学技术(英文版),2022(10):131-141
A类:
mediately,transus,+HT
B类:
Enhancing,work,hardening,ductility,additively,manufactured,Ti,roles,played,by,grain,morphology,metastable,alloy,was,laser,powder,bed,fusion,LPBF,Tensile,test,along,build,direction,revealed,significant,softening,following,yielding,uniform,deformation,By,contrast,substantial,elongation,well,over,achieved,perpendicular,Similar,effects,obtained,after,super,heat,treatment,although,strength,slightly,lowered,In,drop,phenomenon,observed,both,orientations,materials,disappeared,enhanced,ability,thus,attributed,increased,interactions,slip,bands,additional,systems,becoming,operative,while,dominated,only,other,variations,may,related,coarsening,removal,specific,substructures,microstructure
AB值:
0.520959
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