C - Chemistry – Metallurgy – 22 – C
Patent
C - Chemistry, Metallurgy
22
C
C22C 29/06 (2006.01) B22F 7/00 (2006.01)
Patent
CA 2523593
Cermets are provided in which the ceramic phase is selected from the group consisting of Cr23C6, Cr7C3, Cr3C2 and mixtures thereof. The binder phase is selected from certain specified Ni/Cr alloys and certain Fe/Ni/Cr alloys. These cermets are particularly useful in protecting surfaces from erosion at high temperatures.
L'invention concerne des cermets dont la phase céramique est sélectionnée dans le groupe constitué par Cr<sb>23</sb>C<sb>6</sb>, Cr<sb>7</sb>C<sb>3</sb>, Cr<sb>3</sb>C<sb>2</sb> et des mélanges de ceux-ci. La phase liant est sélectionnée à partir de certains alliages Ni/Cr spécifiés et de certains alliages Fe/Ni/Cr. Ces cermets sont particulièrement utiles pour la protection de surfaces contre l'érosion à des températures élevées.
Antram Robert Lee
Bangaru Narasimha-Rao Venkata
Chun Changmin
Fowler Christopher John
Jin Hyun-Woo
Borden Ladner Gervais Llp
Exxonmobil Research And Engineering Company
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