Patent ID: 11945030
Assignee: ROLLS-ROYCE PLC
Field: Materials, metallurgy (Chemistry)
Classification: CPC B  C  Y | IPC B

Claim 0:
1. A method of forming an article, the method comprising:
producing a base powder comprising a plurality of base particles, wherein each base particle is made of a low alloy steel and comprises an external surface;
removing one or more oxides from the external surface of each base particle of the base powder to form a cleaned powder comprising a plurality of cleaned particles, wherein each cleaned particle comprises a cleaned external surface;
coating the cleaned external surface of each cleaned particle of the cleaned powder with chromium having a greater oxidation resistance than the low alloy steel to form a coated powder comprising a plurality of coated particles, wherein each coated particle comprises an external layer comprising the chromium that fully covers the cleaned external surface made of the low alloy steel; and
forming the article using the coated powder.