COMPONENT MADE OF METALLIC COMPOSITE MATERIAL AND METHOD FOR THE MANUFACTURE OF THE COMPONENT BY HOT FORMING

摘要

The invention relates to a component made of metallic composite material having high corrosion resistance and scale resistance. The metallic composite material contains as a core material (1 11 21 32) an uncoated hardenable steel on which surface a corrosion resistance and scaling resistance layer (2 13 22 31) is achieved using heat resistant stainless steel and that the yield strength Rp0 2 is at least 1000 MPa and the tensile strength Rm is at least 1500 MPa for the core material (1 11 21 32) and critical scaling temperature of resistance in air for the layer material (2 13 22 31) is at least 850 C.