| 摘要 |
Procedure for adjusting the thermal conductivity of a steel, preferably a hot-work steel comprises metallurgically producing an internal structure of the steel, whose: carbide components exhibit a defined electron and phonon density, and/or crystal structure exhibits a mean free-path length for the phonon and electron flux that is defined by selectively produced lattice defects. Independent claims are included for: (1) a tool steel, preferably hot-work steel comprising carbon (0.26-0.55 wt.%), chromium (less than 2 wt.%), molybdenum (0-10 wt.%) and tungsten (0-15 wt.%), where the total content of tungsten and molybdenum is 1.8-15 wt.%, carbide-forming elements (0-3 wt.%) comprising titanium, zirconium, hafnium, niobium and/or tantalum, vanadium (0-4 wt.%), cobalt (0-6 wt.%), silicon (0-1.6 wt.%), manganese (0-2 wt.%), nickel (0-2.99 wt.%) and sulfur (0-1 wt.%), and the remaining of iron and unavoidable impurities; and (2) a steel object partially comprising a tool steel, preferably a hot-work steel. |
