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Articles

Modelling recovery kinetics in high-strength martensitic steels

, &
Pages 280-286 | Received 06 Jan 2017, Accepted 06 Jun 2017, Published online: 28 Jun 2017

Figures & data

Figure 1. Representation of the dislocation forest hardening contribution () to the yield strength of tempered martensitic steels. The dots on the graph represent the measured dislocation density (x-coordinate) and yield strength (y-coordinate) values of the material, where HS and LS represent high-silicon and low-silicon alloys, respectively, tempered at 250, 350 and 450 C.

Figure 1. Representation of the dislocation forest hardening contribution () to the yield strength of tempered martensitic steels. The dots on the graph represent the measured dislocation density (x-coordinate) and yield strength (y-coordinate) values of the material, where HS and LS represent high-silicon and low-silicon alloys, respectively, tempered at 250, 350 and 450 C.

Figure 2. Modelling recovery considering cross-slip and solute drag mechanisms, and a combination of both processes, for (a) HS and (b) LS.

Figure 2. Modelling recovery considering cross-slip and solute drag mechanisms, and a combination of both processes, for (a) HS and (b) LS.

Figure 3. Representative microstructures for HS and LS tempered at 250, 350 and 450 C.

Figure 3. Representative microstructures for HS and LS tempered at 250, 350 and 450 C.

Figure 4. Schematic representation of intralath precipitation and recovery of low-angle grain boundaries.

Figure 4. Schematic representation of intralath precipitation and recovery of low-angle grain boundaries.