FREMGANGSMAATE FOR FREMSTILLING AV EN VARMERESISTENT LEGERING ELLER SUPERLEGERING SOM HAR EN STRUKTUR MED GROVE LANGSTRAKTE KORN

A process for making high temperature alloys having a coarse elongated grain structure is described in which the alloy is water atomised so that a controlled amount of oxygen is introduced into the alloy, and is extruded and hot rolled in a direction substantially parallel to the extrusion direction...

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Bibliographische Detailangaben
Hauptverfasser: ROBINSON, MARK LOUIS, WANG, KATHY KUEI-HWA
Format: Patent
Sprache:nor
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Beschreibung
Zusammenfassung:A process for making high temperature alloys having a coarse elongated grain structure is described in which the alloy is water atomised so that a controlled amount of oxygen is introduced into the alloy, and is extruded and hot rolled in a direction substantially parallel to the extrusion direction, optionally cold rolled and then annealed to permit recrystallisation. The alloys produced exhibit good high temperature strength and stress rupture properties.