Disclosed herein is a method of forming a multi-layered metallic part. The method comprises forming a plurality of ductile layers made of a metallic material having a first ductility. The method also comprises forming at least one high-strength powder layer made of a powdered metallic material having a second ductility higher than the first ductility. The method further comprises assembling the plurality of ductile layers and the at least one high-strength powder layer in an alternating and stacked formation to form a multi-layered metallic assembly. The method additionally comprises oscillating a crystallographic phase of the powdered metallic material of the at least one high-strength powder layer between a first crystallographic phase and a second crystallographic phase.

Disclosed herein is a method of forming a multi-layered metallic part. The method comprises forming a plurality of ductile layers made of a metallic material having a first ductility. The method also comprises forming at least one high-strength powder layer made of a powdered metallic material having a second ductility higher than the first ductility. The method further comprises assembling the plurality of ductile layers and the at least one high-strength powder layer in an alternating and stacked formation to form a multi-layered metallic assembly. The method additionally comprises oscillating a crystallographic phase of the powdered metallic material of the at least one high-strength powder layer between a first crystallographic phase and a second crystallographic phase.

The present disclosure relates to metal material casting-rolling forming technology, and specifically to a casting-rolling method and apparatus based on a multi-layer heterogeneous composite roll sleeve. By alternately arranging a plurality of metal components on the composite roll sleeve and adjusting distribution of the metal components in the composite roll sleeve according to structural parameters and process parameters of the monometallic metals and layered metal composite materials, a layer thickness of the metal components at different radial positions of the composite roll sleeve is determined based on the solidification range of monometallic metals and the offset of the solidification point position in the heat transfer process of layered metal composite materials. This can significantly improve forming quality of strips.