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AssigneeSeoul National University R&Db Foundation
InventorsEun Soo PARK, Sang Gun KIM, Ji Young KIM, Hyun Seok OH, Kook Noh YOON
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Disclosed are a BCC dual phase refractory superalloy with high phase stability and a manufacturing method therefor, the alloy comprising one or more of Ti, Zr, and Hf as Group 4 transition metals, one or more of Na and Ta as Group 5 transition metals, and Al, and having a structure of a BCC phase, wherein the BCC phase is composed of a disordered BCC phase and an ordered BCC phase, and wherein the ordered BCC phase is formed by allowing Al, which is a BCC phase forming element, to be soluted in an area of the BCC phase where the contents of the Group 5 transition metals are more than those of the Group 4 transition metals, so that the present disclosure provides a BCC dual phase refractory superalloy with high phase stability, characterized in that when a BCC dual phase with the ordered BCC phase and the disordered BCC phase separated from each other is formed by aging, the aging condition is precisely controlled through the apex temperature (Tc) of the BCC phase miscibility gap, expressed by (Equation 1) below. Tc(K)=881.4+331.7*x+546.7*y+893.0*x*z (Equation 1) (provided that, 0≤x≤1, 0≤y≤0.2, 0≤x+y≤1, and 0≤z≤1)
A method for manufacturing a BCC dual phase refractory superalloy, the method comprising:
A method for manufacturing a BCC dual phase refractory superalloy, the method comprising:
A method for manufacturing a BCC dual phase refractory superalloy, the method comprising:
Dependencies are inferred from the claim text.