Meisterprüfung Metalltechnik Practice Questions - Österreichische Meisterprüfung Metalltechnik Für Metall- Und Maschinenbau Exam

Carburizing (Aufkohlen) in a carbon-rich atmosphere at 880–950°C, followed by quenching (Abschrecken) and low-temperature tempering (Anlassen at 150–200°C) to create a hard, wear-resistant surface layer with a tough, ductile core Austenitizing at 1100°C, rapid water quenching, and high-temperature tempering at 600°C to achieve uniform through-hardness throughout the full cross-section Heating to 550°C in an ammonia gas atmosphere to precipitate chromium nitrides without structural phase transformation Heating to 723°C in an inert argon furnace followed by furnace cooling over 48 hours to eliminate internal stresses