The influence of heat treatment parameters on the carbide morphology powder metallurgic high-speed steel HS 6-5-3-8 is examined. To that end, diverse are selected and applied by quenching dilatometry. In particular, different austenitizing temperatures, as well an isothermal holding stage during in temperature regime transformation gap at temperatures between 450 600 °C, produced. Extensive com...

Laser powder-bed fusion (LPBF) enables the production of difficult-to-machine materials with near-net shape and complex geometries. Components made tool steels produced by LPBF, even using high preheating temperature, tend to show residual porosity, cracks, stresses. Hot isostatic pressing (HIP) is able densify components modify their microstructure. Moreover, compared conventional heat treatme...

In this study, the changes in microstructure and mechanical properties during isothermal heat treatment of cast steel before after hot deformation were investigated using medium-carbon with low alloy content. The microstructural characteristics hot-rolled under heat-treatment conditions examined optical microscopy scanning electron conjunction backscatter diffraction. variation was evaluated Ro...

in this research, effect of the number of nodular graphite particles, as an important characteristic of ductile cast irons, on the distribution of martensite in dual-phase ductile iron has been studied. ductile iron samples were produced by step casting and the samples were then annealed in order to achieve a fully ferritic structure. a special heat treatment was conducted to produce dual matri...