Rheology of Semi-Solid Steel Alloys at Temperatures up to 1500°C
The investigation of the flow behavior of semi-solid steel alloys poses a great challenge by reason of high operation temperatures and the need of ceramic components for the measuring system. A high-temperature Couette rheometer has been developed to analyze flow properties of semi-solid alloys up to temperatures of 1500°C. In the present work the alloy under investigation is X210CrW12. Differently performed experiments clearly show its shear-thinning and time-dependent flow properties with a yield stress. This flow behavior is modeled using a Herschel-Bulkley approach where the experimental results achieved serve to identify model parameters.
C.G. Kang, S.K. Kim and S.Y. Lee
M. Modigell et al., "Rheology of Semi-Solid Steel Alloys at Temperatures up to 1500°C", Solid State Phenomena, Vols. 116-117, pp. 606-609, 2006