Fig. 4: Thermodynamic and process metallurgy calculations of oxide reduction and metal formation during H2-based redox alloying. | npj Advanced Manufacturing

Fig. 4: Thermodynamic and process metallurgy calculations of oxide reduction and metal formation during H2-based redox alloying.

From: Hydrogen-based ore-to-part manufacturing of near-net-shape stainless steel

Fig. 4: Thermodynamic and process metallurgy calculations of oxide reduction and metal formation during H2-based redox alloying.

a Equilibrium phase evolution for a mixture of oxide powders and excess H2. b Process metallurgy calculation indicating amount of oxide and metal formed when considering 10 g of mixed oxides in H2. c Relative mass change and metal conversion rate corresponding to (b). d Evolution in constitents of oxides with reduction temperature. e Evolution of metal composition with reduction temperature.

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