ODS alloy powder, method for producing same by means of plasma treatment, and use thereof
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United States of America Patent
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Oct 22, 2024
Grant Date -
Jul 29, 2021
app pub date -
May 3, 2019
filing date -
May 3, 2018
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A method for producing a reinforced alloy powder containing a metal matrix in which crystalline oxide particles are dispersed, including: (i) providing a powder mixture including a parent metal powder including a master alloy for forming the metal matrix and an additional powder including an intermediate; (ii) milling the powder mixture by a mechanical synthesis process to make a precursor powder; and (iii) subjecting the precursor powder to a thermal plasma generated by a plasma torch including a plasma gas. The master alloy is iron-based, nickel-based, or aluminum-based. The intermediate is at least one of YFe3, Y2O3, Fe2O3, Fe2Ti, FeCrWTi, TiH2, TiO2, Al2O3, HfO2, SiO2, ZrO2, ThO2, and MgO. In (iii), the precursor powder is injected into the plasma torch at a flow rate of 10-30 g/min, a power of the plasma torch is 20-40 kW, and a pressure in a reaction chamber of the plasma torch is 25-100 kPa.
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International Classification(s)
- 2019 Application Filing Year
- B22F Class
- 1419 Applications Filed
- 821 Patents Issued To-Date
- 57.86 % Issued To-Date
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- 0 Citation Count
- B22F Class
- 0 % this patent is cited more than
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