Title of article :
Refinement of grain boundary cementite in medium-carbon tempered martensite by thermomechanical processing
Author/Authors :
Yusa، نويسنده , , S and Hara، نويسنده , , T and Tsuzaki، نويسنده , , K and Takahashi، نويسنده , , T، نويسنده ,
Abstract :
Microstructural observations of prior-austenite grain boundary cementite in tempered martensite of an Fe–2%Mn–0.36%C alloy were performed. Grain boundary cementite could be markedly refined by applying ausforming. Unlike the case of the non-ausformed specimen, no coarse cementite films were observed and fine cementite particles with various variants tended to form at a serrated prior-austenite grain boundary in the ausformed specimen.
Keywords :
Serrated boundary , Variant selection , Grain boundary precipitate , High-strength steel , Ausforming
Journal title :
Astroparticle Physics
