Structural Transformations Influence on Mechanical-and-Physical and Chemical Properties of Fe-Cr-Co Alloys in Heating

Abstract:

Four model alloys of the Fe-Cr-Co system have been tested under elongation at a standart rate and under pure bending with a constant load in air and in a corrosive medium after different treatment. Fractographic studies were performed depending on the cobalt content and duration of thermal aging at 450 °C. The experiment results are that the Fe-Cr-Co-based alloys with 5–10 % of cobalt are an acceptable composition for maraging steels since they have high strength and ductility, as well as corrosion resistance and low sensitivity to stress corrosion cracking.

• Periodical: Materials Science Forum (Volume 946)
• Pages: 63-67
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.946.63
• Online since: February 2019
• Authors: Vera V. Berezovskaya*, Valentina A. Sharapova
• Keywords: Anode Current, Fractography, Hardness, Stress Corrosion Cracking, Structure, Uniaxial Tension

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