Abstract In this study, 45Si2MnCr2Mo steel was fabricated by casting, hot rolling, and normalizing, followed tempering at different temperatures from 180 to 520 °C for 2 h. Special attention paid the effects of on microstructure mechanical properties steel. The results indicate that tempered consists bainite, martensite, retained austenite (RA), it is not sensitive below 320 °C. However, after ...

Deformation-induced martensitic transformation (DIMT) during tensile or compressive deformations of the bainitic steels with various carbon content (0.15 %C, 0.25 0.62 %C) was studied. The initial microstructure before deformation tests prepared by austempering at 400 °C to obtain structure consisting ferrite and retained austenite. volume fraction austenite larger in steel content. In all stee...

The influence of various cations ranging from alkali metals to transition metals according to the periodic table were discussed. The ferrites used were Ni ferrite, Mg ferrite and Zn ferrite having different cation distributions in the spinel lattice. Cations having appropriate ionic radii and valencies are soluble in ferrite. Several additives formed other phase in addition to the spinel phase....

Co-Zn ferrite and BaM ferrite films were deposited on silicon wafer disks with thermally oxidized surface layer without annealing process, and their readlwrite characteristics in contact mode have been investigated by using a MIG and Mn-Zn ferrite head with gap length of 0.2-0.4 pm. The highest linear recording density D50 of Co-Zn ferrite and Ba ferrite films were 105 and 190 WRPI, respectivel...

Abstract This paper describes the development and characterisation of bainitic steel for rail applications based on carbide-free, low-alloy steel. The results show that after rolling subsequently cooling, designed carbide-free exhibits better mechanical performance than standard pearlitic is because its fine, microstructure, which consists ferrite retained austenite laths. Microstructural prope...

The reaction mechanism for conversion of MnO nanoparticles to Mn-ferrite nanoparticles was studied, which involved sequential consumption of MnO and the growth of ferrite. The method could be applied to other ferrite nanoparticles including cobalt ferrite.

The selection of crystallographic variants in bainitic microstructures is a deeply studied topic which can be attributed to several reasons. In the cases where prior austenite textured, stressed or plastically deformed, final ferrite texture and dilatometry signal may change, being anisotropic. Although causality between variant variation dilatometric has been previously assumed, it not thoroug...