ПРИЧИНА ФОРМИРОВАНИЯ РАСЩЕПЛЕНИЙ ПРИ РАЗРУШЕНИИ ТРУБНЫХ СТАЛЕЙ, ИЗГОТОВЛЕННЫХ МЕТОДОМ TMCP ; Cause of fission formation at destruction of pipe steels produced by TMCP
Texture of low carbon microalloyed steel sheets with bainitic microstructure produced by TMCP (thermo-mechanical controlled processing) was investigated using EBSD (electron backscatter dif-fraction) technique. Samples with high and low penchant for fission formation (secondary cracks at the fracture surface) were investigated. Formation of fission relates with the elongated areas of grades which have uniform orientation (001)[110]. Probably the formation of these areas is a result of features of γ → α transformation at different parame ters of TMCP. © 2017, National University of Science and Technology MISIS. All rights reserved. ; Acknowledgements. The work was supported by the Resolution no. 211 of the Russian Government, the contract no. 02.A03.21.0006 and within the public tasks of the Ministry of Education and Science of the Russian Federation, the project no. 11.1465.2014/K.