Optimization of Tensile Properties of AISI S1 Tool Steel

Successful employment of advanced tool steel in engineering applications is related to its ability in terms of meeting service life requirements and fabrication with proper dimensions. Deep cryogenic treatment may be used to produce advanced tool steel by simultaneously increasing toughness, strength, and hardness. Twelve sets of specimens were tested, 9 of which were deep cryogenic treated and then tempered. The best results 12-35% improvement in tensile toughness, 9-16% improvement in hardness, and 28-36% improvement in tensile strength were obtained.

Deep Cryogenic Treatment; Hardness; Strength; Tensile toughness