研究目的
Studying the thermal relaxation features of compressive residual stresses generated during laser-shock wave processing in high-alloyed heat-resistant Iron GH2036 alloy.
研究成果
The study demonstrated that laser-shock wave processing significantly improves the mechanical properties and fatigue characteristics of materials by producing strong fields of compressive residual stresses. The thermal relaxation of these stresses is significantly affected by temperature and annealing time, with maximal relaxation occurring in the surface layer. The developed finite element model can be used for numerical analysis of thermal relaxation of compressive residual stresses, which is important for analyzing critical components of machines operating at elevated temperatures.
研究不足
The study is limited to the thermal relaxation of compressive residual stresses in high-alloyed heat-resistant Iron GH2036 alloy under specific conditions (temperature range from 200 to 650°C). The computational costs of modeling LSP processes are high, and the study uses a method to reduce them.
