ČSN EN ISO 4885 - Železné materiály – Tepelné zpracování – Slovník

3.136 martempering

heat treatment (3.108) involving austenitizing (3.14) followed by step quenching (3.196), at a rate fast enough to avoid the formation of ferrite (3.85), pearlite (3.155) or bainite (3.17), to a temperature slightly above Ms, and soaking for long enough to ensure that the temperature is uniform but short enough to avoid the formation of bainite Note1 to entry: The final cooling (3.45), during which martensite (3.137) forms practically simultaneously throughout the cross-section, is generally carried out in air.