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US 12,214,420 B2Granted
Spheroidal titanium metallic powders with custom microstructures
Assignee6K Inc.
InventorsKamal Hadidi, Gregory M. Wrobel, Makhlouf Redjdal
Life of this patent
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Abstract
Methodologies, systems, and devices are provided for producing metal spheroidal powder products. By utilizing a microwave plasma, control over spheriodization and resulting microstructure can be tailored to meet desired demands.
Claims17
A method of modifying a particle shape and a microstructure of a feedstock, the method comprising:
- melting at least a surface portion of particles of feedstock comprising titanium in a plasma to spheroidize the particles;
- and
- setting and applying cooling processing parameters to create spheroidized particles with a microstructure,
- wherein the cooling process parameters comprise one or more of a cooling gas flow rate, a residence time of the feedstock, and a cooling gas composition, and
- wherein the cooling processing parameters are selected to create at least two regions in the spheroidized particles, each region having a different microstructure or crystal structure, wherein the cooling processing parameters are selected to create an equiaxed microstructure in the spheroidized particles.
2 more elements
A method of modifying a particle shape and a microstructure of a feedstock, the method comprising:
- melting at least a surface portion of particles of the feedstock comprising titanium in a plasma to spheroidize the particles;
- and
- setting and applying cooling processing parameters to create spheroidized particles with a microstructure,
- wherein the cooling process parameters comprise one or more of a cooling gas flow rate, a residence time of the feedstock, and a cooling gas composition, and
- wherein the cooling processing parameters are selected to create a martensitic microstructure, a Widmanstätten microstructure, and/or an equiaxed microstructure in the spheroidized particles.
2 more elements
Dependencies are inferred from the claim text.