Patent ID: 8557056

Claim:
A process for setting a thermal conductivity of a hot-work steel, which comprises the steps of: providing a hot-work steel, including carbidic constituents and, by weight, 2-10% Mo+W+V; metallurgically creating an internal structure of the steel in a defined manner such that carbidic constituents thereof have at least one of a defined electron and phonon density and a crystal structure thereof having a mean free length of a path for a phonon and electron flow being determined by specifically created lattice defects; selecting: a) a surface fraction and thermal conductivity of the carbidic constituents and a particular surface fraction and thermal conductivity of a matrix material containing the carbidic constituents; or b) a volume fraction and thermal conductivity of the carbidic constituents and thermal conductivity of the matrix material containing the carbidic constituents; and setting the thermal conductivity of the steel at room temperature to more than 42 W/mK.