Prediction of the residual state in 304 austenitic steel after laser shock peening – Effects of plastic deformation and martensitic phase transformation

Martensitic transformation induced by single shot peening in a metastable austenitic stainless steel 301LN: Experiments and numerical simulation

“…Fu et al (2013) have studied the evolution of residual stresses both in the austenitic and martensitic phases in the 18CrNiMo7-6 steel and showed that it was higher in the martensitic phase of higher yield strength. In 2016, using a large strain formulation of transformation plasticity, Halilovic et al proposed the very first numerical simulation of the residual stress state in AISI 304 peened steel with a single laser shot (Halilovic et al, 2016). They concluded that at low temperature the residual stress state is mainly caused by phase transformation, and it is mainly due to plastic deformation at high temperature.…”

Prediction of residual stress fields after shot-peening of TRIP780 steel with second-order and artificial neural network models based on multi-impact finite element simulations

“…Experimental studies analysed the residual stresses in the different phases such as austenite, ferrite if present, and created martensite, along with their evolving volume fractions [35] [36] [37] [38] [39]. For the modeling of shot-peening with phase transformation, Halilovič et al [40] developed a finite element model for laser shock peening on AISI 304 steel by using a material model developed by [34] and implemented in ABAQUS. Guiheux et al [38] applied the elastoplastic and phase transformation model developed by Kubler et al [41] to predict the residual stress fields and phase transformation under a single impact on AISI 301 LN fully austenitic steel.…”

Shot peening of TRIP780 steel: Experimental analysis and numerical simulation

“…To the authors knowledge, only Fu et al (2013) have experimentally studied the stress state in both austenitic and martensitic constituents after shot-peening. For the modeling of surface treatment with phase transformation and the prediction of residual stresses, Halilovič et al (2016) have presented a parametric numerical study of laser shock peening (LSP) on an AISI304 steel using the material model developed by Hallberg et al (2007) implemented in an Abaqus UMAT subroutine. They have investigated the temperature effects in LSP, and have shown that, at lower temperatures, the phase transformation was the main cause for residual stresses generation, while plasticity dominates the residual state at higher temperatures.…”