Recrystallization, Refinement, and Strengthening Mechanisms For Production Of Advanced High Strength Metal Alloys

摘要

This disclosure deals with a class of metal alloys with advanced property combinations applicable to metallic sheet production. More specifically, the present application identifies the formation of metal alloys of relatively high strength and ductility and the use of one or more cycles of elevated temperature treatment and cold deformation to produce metallic sheet at reduced thickness with relatively high strength and ductility.

主权项

1. A method comprising:
a. supplying an Fe-based metal alloy with Fe content greater than 50 atomic percent; b. melting said alloy and solidifying to provide a matrix grain size of 200 nm to 200,000 nm wherein said solidified alloy has a thickness of 1 mm to 500 mm; c. heating said alloy to form a refined matrix grain size of 50 nm to 5000 nm where the alloy has a yield strength of 200 MPa to 1225 MPa and a thickness of 1 mm to 500 mm; d. stressing said alloy that exceeds said yield strength of 200 MPa to 1225 MPa wherein said alloy after stressing has a thickness of 0.1 mm to 25 mm and indicates a tensile strength of 400 MPa to 1825 MPa and an elongation of 1.0% to 59.2%.