| 摘要 |
Coated components, able to withstand high stresses, composed of the intermetallic phase titanium aluminide, in particular for piston engines, gas turbines and exhaust gas turbochargers, are coated, at least on the parts of their surface which are at risk of hot corrosion and/or wear, with a sheet of a solderable nickel-based alloy soldered on under vacuum, a coating thickness of 0.1 to 0.4 mm having proved to be adequate. The nickel-based alloys, of which the soldered-on sheet is composed, have a melting point of below 1180 DEG C and preferably also comprise chromium, boron, silicon, phosphorous and carbon and possibly iron. They may also include hard particles eg tungsten carbide. |
