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Effect of the strain reversal on austenite-ferrite phase transformation in Nb-microalloyed steel

Effect of the strain reversal on austenite-ferrite phase transformation in Nb-microalloyed steel

Multipass torsion tests were performed on an Nb-microalloyed steel at decreasing temperatures so as to analyze the effect of strain reversal – in the strain accumulation region – on the γ → α transformation kinetics. Strain reversal involved a significant delay in the start of the transformation as well as a microstructural transient compared to monotonic strain conditions. However, after several passes with no reversal performed within the inter-critical temperature region, both types of tests led to similar microstructures.

https://www.ceit.es/es/133-publicaciones-cientificas/3362-effect-of-the-strain-reversal-on-austeniteferrite-phase-transformation-in-a-nb-microalloyed-steel

MAGAZINE/CONFERENCE:

Mat. Sci. and Eng. A 527 (2010) 934–940

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