CHEMICAL ACTIVATION OF SELF-PASSIVATING METALS

A workpiece made from a self-passivating metal and having one or more surface regions defining a Beilby layer as a result of a previous metal shaping operation is activated for subsequent low temperature gas hardening by exposing the workpiece to the vapors produced by heating a non-polymeric N/C/H...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: WILLIAMS, Peter C, SEMKOW, Christina, ILLING, Cyprian A.W
Format: Patent
Sprache:eng ; fre ; ger
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Beschreibung
Zusammenfassung:A workpiece made from a self-passivating metal and having one or more surface regions defining a Beilby layer as a result of a previous metal shaping operation is activated for subsequent low temperature gas hardening by exposing the workpiece to the vapors produced by heating a non-polymeric N/C/H compound.