3 IMR KINKEN Research Highlights 2012 IMR KINKEN Research Highlights 2012 To reduce the fuel consumption by automobiles, medium carbon steels for forging parts, such as shafts and connecting rods, must be further strengthened. When carbide-forming elements such as Ti, Nb, and V, are alloyed with carbon steels, a fine dispersion of alloy carbides and large precipitation hardening can be achieved...

Nickel-based superalloys are being considered for applications within advanced nuclear power generation systems due to their high temperature strength and corrosion resistance. Alloy 617, a candidate for use in heat exchangers, derives its strength from both solid solution strengthening and the precipitation of carbide particles. However, during creep, carbides that are supposed to retard grain...

This study consists of the experimental and numerical analysis phase transformations 5Cr-0.5Mo.0.1C steel after heat treatment. The microstructure as-received comprised ferrite bainite, which is in agreement with microconstituents predicted by Calphad-calculated TTT diagram. Calphad-based precipitation calculations show that cooling stage normalizing treatment did not cause carbide formation. I...

The microstructural evolution of a Fe-Mn-Al-Ni-C low-density steel was studied. lightweight steels are promising material for the transportation industry, due to their good mechanical properties and low density. base microstructure investigated consists ferrite austenite. Thermo-Calc calculations showed formation an ordered BCC (body-centred cubic) B2 phase below 1181 °C kappa carbides 864 °C. ...