Refine your search�ソスF     
Report No.

Relation between intergranular stress of austenite and martensitic transformation in TRIP steels revealed by neutron diffraction

Harjo, S.   ; Kawasaki, Takuro   ; Tsuchida, Noriyuki*; Morooka, Satoshi  ; Gong, W.*

${it In situ}$ neutron diffraction measurements of two low-alloy steels and a 304-type stainless steel during tensile and creep tests were performed at room temperature. Changes in the diffraction pattern, the integrated peak intensities of austenite ($$gamma$$), and the peak positions of $$gamma$$ were analyzed and discussed to elucidate the relationship between intergranular stress in $$gamma$$ and the occurrence of martensitic transformation during deformation. Tensile loading experiments revealed that the susceptibility to martensitic transformation depended on the $$gamma$$-(hkl) grains, where $$gamma$$-(111) grains underwent martensitic transformation at the latest. The $$gamma$$-hkl dependence of the susceptibility to martensitic transformation was found to be controlled by the shear stress levels in $$gamma$$-(hkl) grains, which were affected by the intergranular stress partitioning during deformation.



- Accesses




Category:Metallurgy & Metallurgical Engineering



[CLARIVATE ANALYTICS], [WEB OF SCIENCE], [HIGHLY CITED PAPER & CUP LOGO] and [HOT PAPER & FIRE LOGO] are trademarks of Clarivate Analytics, and/or its affiliated company or companies, and used herein by permission and/or license.