is reliable through the MSR treatment without PWHT. incremental analysis of the thermo-elastic–plastic stress was. Scanning electron fractographs was critical in this study, in that valuable information regarding the mechanism and nature of failure could be determined. The fracture surfaces of the Charpy V-notch PM and WM (before and after PWHT) samples were examined by SEM. The transverse residual stresses of the weld line are changed from tensile 156 MPa to compressive 289 MPa with using LTT fillers instead of conventional fillers. A two-dimensional non-linear heat-transfer analysis was performed for a transverse section of the plate. They are in a reasonable agreement with each other and prove the capability of the proposed modeling technique to simulate PWHT. Ways Of Relieving Stress To Start Today - Give yourself a much needed break and relieve stress, right this minute. Therefore, MSR treatment can. dards. Machining Costs. Welding is a reliable and efficient metal-joining process widely used in industry. RELIEVING OF STEELS The tempering process takes place after the steel is hardened but is a no less an important step in a component’s manufacturing chain. The residual stresses are, generally detrimental, increasing the susceptibility of a weld to, fatigue damage, stresses corrosion cracking and fracture, a method of reducing the welding residual stresses, post-weld, heat treatment (PWHT) was recognized to be more effective, than other processes and was studied widely, case of the large pressure vessels and pipes, mechanical stress, relieving (MSR) is often considered as more conv, The MSR treatment is a method enforcing an external load, on the welded structure where a residual stress exists. cross-section and the weld bead sequence. Proper modeling of the temperature and thermal stress in the. Through comparison and analysis, MSR treatment, can decrease the tensile stress peak value of axial residual, stresses and hoop residual stresses on the outer surface obvi-, stresses is reduced quickly. The residual stress values determined by XRD and sandwich holography were found to be comparable, and stress values obtained by hole drilling/strain gauge measurement were higher than these values. A pressure and time diagram for MSR treatment was, established. Данное исследование посвящено решению задачи применения эффективного экологически чистого способа локального нагрева обрабатываемых поверхностей диска в процессе термопластического упрочнения. Moreover, most were, C in order to prevent it from damaging and, shows the mesh of the finite element (FE) model. Corresponding author. Before and after MSR treatment, the residual stresses on the outer surface were measured by the blind hole drilling method. In this study, the effects of vibratory weld conditioning (VWC) on the residual stress and distortion were studied in multipass girth-butt welded, Austenitic stainless steels are widely used welding materials in nuclear reactors and power plants because of their high strength, good ductility, excellent corrosion resistance and a reasonable weldability. Therefore, in this study, an, inner pressure was used to study the effect of the MSR treat-, ment on the residual stresses. 3.1 Current Procedure Currently, our sponsor’s heat-treating process for the 420-Stainless steel product is listed below. Identifying the specific simulation parameters and variables, that have the highest impact on the accuracy of the computed results, is also important. Comparison of the residual stresses before and after MSR: (a) axial. A two-dimensional axisymmetric finite element model was used to simulate the residual stresses field. Для увеличения ресурса работы деталей используются различные методы поверхностного упрочнения.