Surface treatment process
AssigneeCommonwealth Steel Company Pty Ltd
InventorsVeena Sahajwalla, Farshid Pahlevani
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Abstract
A method of hardening a surface of a ferro-alloy object, the method comprising at least partially gasifying a carbon-containing polymer to form a hardening material source; and exposing the object to the hardening material source, such that the hardening material source and the surface of the object react, thereby hardening the surface of the object.
Claims20
A method of hardening a surface of a ferro-alloy object, the method comprising:
- at least partially gasifying a carbon-containing polymer to form a hardening material source;
- and
- exposing the object to the hardening material source, such that the hardening material source and the surface of the object react, thereby hardening the surface of the object, wherein the object is grinding media.
A method of forming grinding media having a ferro-alloy substrate and a hardened ceramic surface, the method comprising:
- forming the ceramic surface on the ferro-alloy substrate by reacting a hardening material source with the ferroalloy substrate, the hardening material source being formed at least in part from a source incorporating one or more carbon-containing polymers and one or more of metal or ceramic.
A method of hardening a surface of a ferro-alloy object, the method comprising:
- at least partially gasifying a carbon-containing polymer to form a hardening material source;
- and
- exposing the object to the hardening material source, such that the hardening material source and the surface of the object react, thereby hardening the surface of the object,
- wherein the hardening material source and the surface of the object react by chemically bonding the hardening material source to the surface of the object to form a ceramic surface on the object, wherein the hardening material source includes ceramic forming agents that form the ceramic surface, wherein the ceramic forming agents include one or more ceramic phases that chemically bond with the ferro-alloy object, and wherein the ceramic phases that chemically bond with the ferro-alloy object comprise one or more of TiN, Al2O3, or Si3N4 phases.
Dependencies are inferred from the claim text.