CLASSES OF MODAL STRUCTURED STEEL WITH STATIC REFINEMENT AND DYNAMIC STRENGTHENING

摘要

The present disclosure relates to formulations and methods for providing novel steel alloys having relatively high strength and ductility. The alloy may be provided in sheet or pressed form and may be characterized by its particular alloy chemical composition and recognizable crystalline grain size form. The alloy is that they comprise boride grains present as pinning phases. The mechanical properties of the alloy, referred to as class 1 steel, exhibit a yield strength of 300 MPa to 840 MPa, a tensile strength of 630 to 1100 MPa and an elongation of 10% to 40%. In what is referred to as class 2 steel, the alloy exhibits a yield strength of 300 MPa to 1300 MPa, a tensile strength of 720 MPa to 1580 MPa, and an elongation of 5% to 35%.