Apple Inc.
NITRIDED STAINLESS STEELS WITH HIGH STRENGTH AND HIGH DUCTILITY

Abstract:

The disclosure provides a method of hardening an Fe-based alloy. The method may include cold rolling the Fe-based alloy to form a cold rolled alloy. The method may also include heating the cold rolled alloy to an elevated temperature in a nitrogen-containing gas to form a nitrided hardened Fe-based alloy. The nitrided hardened Fe-based alloy comprises N from 0.035 to 2.0 wt %.