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Vacuum heat treatment of powder metallurgy steels
Co-authors: Vladimir Prochazka
Fast pace of engineering advancements results in correspondingly increasing demands on mechanical and processing properties of steels. The requirement for a very high wear resistance (hardness) while maintaining sufficient toughness is frequently growing. The powder metallurgy materials deliver such properties. However, heat treatment of these materials brings several new challenges. An optimization of hardening and tempering parameters is very important in order to achieve the desired characteristics. This lecture compares real cases of heat treatment in vacuum with high pressure gas cooling for selected steels and standard procedures shown in the material data sheets.
