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US 7,407,903 B2Granted
Material for high temperatures
AssigneeSandvik Intellectual Property AB
InventorsMats Sundberg, Kjell Lindgren, Tamer El-Raghy, Gustav Malmqvist
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AssigneeSandvik Intellectual Property AB
InventorsMats Sundberg, Kjell Lindgren, Tamer El-Raghy, Gustav Malmqvist
Estimating the term…
The present invention relates to a material for use at temperatures exceeding 1200° C. and in oxidizing atmospheres consisting generally of an alloy between a metal, aluminium (Al) and carbon (C) or nitrogen (N). The invention is characterized in that the alloy has a composition MZAlYXW where M essentially consists of titanium (Ti), chromium (Cr) and/or niobium (Nb) and where X is carbon (C) or where X is nitrogen (N) and/or carbon (C) when M is titanium (Ti); and in that z lies in the range of 1.8 to 2.2, y lies in the range of 0.8-1.2 and w lies in the range 0.8-1.2, and wherein a protective oxide layer of Al2O3 is formed after heating to the mentioned temperature.
A material for use at temperatures exceeding 1200° and in an oxidizing atmosphere, the material comprising an alloy having a composition MZAlYXW,
Dependencies are inferred from the claim text.