• Galler, Matthew
• Alsharif, Abdelhafiz
• Ahmed, Hamdi Ahmed Elsayed
• Vallant, Rudolf
• Sommitsch, Christof

Abstract

Quenching and partitioning is a novel heat treatment that has been proposed to give a good mixture of tensile strength and the total elongation by producing martensitic steel containing a certain amount of retained austenite ( The 2 step Q&P process enhances the stabilization of austenite by carbon enrichment through the segregation of the carbon from martensite to RA The microstructure was investigated using LOM, SEM, EBSD, and XRD The X ray diffraction has been carried out in order to assess the retained austenite (RA volume fraction It showed convergent RA fractions for different heat treatments with different quenching and partitioning temperatures However, for different holding time in quenching and partitioning steps, recognizable differences in RA can be observed The mechanical properties obtained by Q&P reported for 20 CMnSi steel at different Q&P temperatures showed comparable results While, at different Q&P holding time, observable change in the mechanical properties is reported

Topics

• impedance spectroscopy
• microstructure
• Carbon
• scanning electron microscopy
• x-ray diffraction
• strength
• steel
• tensile strength
• electron backscatter diffraction
• quenching