2023
DOI: 10.1002/mawe.202200231
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Effect of thermal ageing on microstructure, mechanical properties, and fracture behaviour of 50 % cold rolled duplex stainless steel (alloy 2507)

Abstract: The paper deals with cold rolling and ageing on microstructure and mechanical properties of 2507 duplex stainless steel. Microstructure depicts acicular/Widmanstätten austenite and δ‐ferrite with dissimilar volume fraction (∼0.55 for ferrite and ∼0.45 for austenite). Cold rolling and ageing at 950 °C, 1000 °C and 1050 °C result in equiaxed austenite for samples solution treated at 1040 °C and elongated at 1300 °C. By lowering ageing temperature from 1050 °C to 950 °C, structure becomes finer from ∼20 μm to <10… Show more

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