Thermal-Affected Zone Behavior in 13Cr-4Ni Martensitic Stainless Steel: A Simulation Study

Abstract

There are a lot of things that happen when welding. Residual tensions cause the materials to undergo deformation.
The process's significant temperature gradients are to blame for this propensity. Many experts in the field find these
distortions very challenging. The purpose of establishing the behavior rules that will be used to analyze residual
stresses and strains is to forecast these fluctuations. Welding processes in 13Cr-4Ni martensitic stainless steel are the
subject of this investigation into the Thermal Affected Zone (TAZ). There is no change in the TAZ's knowledge of
solid/liquid states. The only information it offers is about the austenite/martensite phase shift in metallurgy. This
investigation makes use of three distinct categories of behavior laws: mechanical, thermal, and metallurgical. In order
to assess the heat field that causes mechanical stresses, the thermal behavior law is used. The mechanical behavior
law is used to assess the residual stress, which is composed of spherical stress (pressure) and deviatoric stress. Taking
the whole strain into account is also useful. In order to assess the metallurgical phase proportions, the metallurgical
behavior law is used. By running the simulations and comparing the outcomes with the analytical and experimental
data, the models established in this work may be considered validated.