Metastabile Eisenmanganlegierungen als neue Auftragwerkstoffe für den Armaturenbau

The application of protective claddings by weld surfacing is the only possibility of effectively and economically increasing the reliability and service life of components subject to wear. In the case of exposure to adhesive and abrasive wear under high surface contact force, such as that which occurs in the sealing surface area of valves, newly developed austenitic iron-manganese weld surfacing alloys can be substituted for iron-chromium-nickel materials, as well as copper-, nickel-, and cobalt-based materials hitherto employed. These economical materials, which exhibit good working properties from a welding engineering standpoint, form an optimal load-bearing edge layer under load because of a metastable state; this layer is constantly reproduced during exposure to wear