|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||Solid State Precipitation
||An Experimental and Modelling Study on Precipitation during Tempering of Martensitic Alloys
||Tao Zhou, Joakim Odqvist, Peter Hedström
|On-Site Speaker (Planned)
Precipitation of particles plays a major role in strengthening of metals and there is currently significant interest in the experimental characterization and predictive modelling of precipitation. The present work focuses on the nucleation, growth and coarsening of copper precipitates and carbide precipitates in multicomponent martensitic stainless steel and alloy steel, respectively. Quantitative assessments of precipitates during tempering are performed using advanced electron microscopy and dissolution experiments. Data on mean radius, volume fraction, number density and size distribution are collected and compared with precipitation modelling performed using the software TC-PRISMA. The modelling and experimental results on evolution of precipitates during tempering is further correlated with the evolution of mechanical properties for the alloy under specific tempering conditions. The work gives promise for further opportunities of predictive modelling of precipitation for design of alloys, optimization of heat treatments and life-time assessments of precipitation-strengthened metals.
||Planned: Supplemental Proceedings volume