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Frank Hahnenberger, Marek Smaga and Dietmar Eifler Influence of γ-α′-Phase Transformation in Metastable Austenitic Steels on the Mechanical Behavior During Tensile and Fatigue Loading at Ambient and Lower Temperatures Advanced Engineering Materials 14

Version of Record online: 16 MAY 2012 | DOI: 10.1002/adem.201100341

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The metastable austenitic steels AISI 304, 321 and 348 are examined in the temperature range −60 °C ≤ T ≤ AT. The α′-martensite formation corresponds to the estimated austenite stability. Tensile and fatigue experiments reveal that its influence on the mechanical behavior is strongest for steel AISI 304, which is underlined by an analysis of cyclic deformation curves and a microhardness evaluation.

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