Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7899370 | Journal of Materials Research and Technology | 2017 | 9 Pages |
Abstract
An experimental as-cast 25Cr-6Mo-5Ni stainless steel has been solution annealed at 1250 °C and subjected to hot and then cold rolling. X-ray diffraction, optical microscopy and electron backscatter diffraction were used to investigate the effect of hot and cold deformation on the phase transformation and texture evolution. The results revealed that dominant {100}//ND and {110}//ND texture components of martensite is originated by shear strain generated between rolls and sheet surface. The Kernel average misorientation augmented significantly with increased strain and decreased deformation temperature. The internal grain structure becomes more heterogeneous with the dislocation piles up preventing dislocations movement. High localized stresses were developed at grain boundaries due to different deformation of individual grains, which enhanced martensitic transformation in these regions.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Mohammad Masoumi, Francisco Evarsito Uchôa Reis, Mirela Oliveira de Castro, Miloslav Béres, Hamilton Ferreira Gomes de Abreu,