MIXED SINTERED METAL MATERIALS BASED ON BORIDES, NITRIDES AND IRON BINDER METALS

摘要

The invention relates to mixed sintered metal materials based on high-melting borides and nitrides and low-melting iron binder metals having the composition: (1) 40-97% by volume of borides, such as titanium diboride and zirconium diboride; (2) 1-48% by volume of nitrides, such as titanium nitride and zirconium nitride; (3) 0-10% by volume of oxides, such as titanium oxide and zirconium oxide, with the proviso that components (2) and (3) may also be present as oxynitrides such as titanium and zirconium oxynitride; and (4) 2-59% by volume of low-carbon binder metals, such as iron and iron alloys and to processes for preparing the same.