Saied Elghazaly
Central Metallurgical R&D Institute, Egypt
Title: Innovative free carbon precipitation hardenable tool steel composites
Biography
Biography: Saied Elghazaly
Abstract
Good combinations between strength and toughness are always the aim of all researchers working in the field of material science. Unfortunately strength and toughness of materials are alloys counter acting properties. However; carbon contents in the steel define to a great extent its strength and toughness. In this research an effort is paid to produce steel alloy composites that can give higher strength together with good toughness without alloying with carbon. The mechanism of strengthening in Fe-Mo-W and Fe-Co-W composite systems is studied; however variations in Co and W contents in these alloys are investigated. The fracture toughness, axial fatigue and strength are measured for all alloy composites under investigation. The changes in microstructures after heat treatment are emphasized using SEM and TEM microscopy.
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