Microstructure and mechanical properties of laser-welded joints of TWIP and TRIP steels
作者： L. Mujica , S. Weber , H. Pinto , C. Thomy , F. Vollertsen
DOI: 10.1016/J.MSEA.2009.11.050
关键词:
摘要: Abstract With the aim of investigating a laser-welded dissimilar joint TWIP and TRIP steel sheets, microstructure was characterized by means OM, SEM, EBSD to differentiate fusion zone, heat-affected base material. OIM used between ferritic, bainitic, martensitic structures. Compositions were measured optical emission spectrometry EDX evaluate effect manganese segregation. Microhardness measurements tensile tests performed mechanical properties joint. Residual stresses XRD phase quantification characterize weld. Grain coarsening areas found in they had significant effects on The zone corresponding material showed considerable differences properties.
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