Cyclic Deformation Behavior of Austenitic Steels in the Temperature Range -60°C ≤T ≤550°C
In this investigation specimens of the austenitic steels AISI 304, AISI 321 and AISI 348 were investigated in fatigue tests in the temperature range -60°C ≤ T ≤ 550°C. A detailed microstructure-based characterization of the cyclic deformation behavior of austenitic steels was performed by means of stress-strain hysteresis, electrical resistance and magnetic measurements. Up to ambient temperature the occurring deformation induced martensite formation was measured in-situ with a ferritescope during cyclic loading. The temperature range for dynamic strain aging was reliably identified by means of a temperature increase fatigue test with one single specimen.
M. Smaga et al., "Cyclic Deformation Behavior of Austenitic Steels in the Temperature Range -60°C ≤T ≤550°C", Key Engineering Materials, Vol. 465, pp. 439-442, 2011