The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 04, 2024
Filed:
Oct. 29, 2020
Exxonmobil Chemical Patents Inc., Baytown, TX (US);
Changmin Chun, Raritan, NJ (US);
Ning Ma, Whitehouse Station, NJ (US);
Jorge J. Perdomo, Kingwood, TX (US);
John S. Coleman, Houston, TX (US);
Larry L. Iaccino, Seabrook, TX (US);
ExxonMobil Chemical Patents Inc., Baytown, TX (US);
Abstract
Methods and compositions are provided for improving metal dusting corrosion, abrasion resistance and/or erosion resistance for various materials, preferably for applications relating to high-temperature reactors, including dense fluidized bed reactor components. In particular, cermets comprising (a) at least one ceramic phase selected from the group consisting of metal carbides, metal nitrides, metal borides, metal oxides, metal carbonitrides, and mixtures of thereof and (b) at least one metal alloy binder phase are provided. Ceramic phase materials include chromium carbide (CrC). Metal alloy binder phase materials include β-NiAl intermetallic alloys and NiSnintermetallic alloys, as well as alloys that contain α-Cr and/or γ'-NiAl hard phases. Preferably, bimetallic materials are provided when the cermet compositions are applied using a laser, e.g., a laser cladding method such as high power direct diode (HPDD) laser, or by plasma-based methods such as plasma transfer arc (PTA) welding and powder plasma welding (PPW).