Investigation of the effect of alloying elements on martensitic transformation in C-Mn steels by computational materials engineering techniques

Date

2024-4-19

Author

Aksu, Fatih

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

137
views

100
downloads

Cite This

Hadfield steel is used in the production of various products operating under impact loads and friction conditions due to its high toughness and wear resistance properties. What gives this steel its high toughness feature is that it has a metastable austenite phase at room temperature. In addition, the transformation of the metastable austenite phase on the surface to martensite due to deformation under impact provides superior wear resistance. In this study, the effect of certain alloying elements on critical martensitic transformation temperatures and stacking fault energy is examined using computational materials engineering tools. Accordingly, stacking fault energy (SFE), martensitic transformation temperatures (Ms and Md(50/30)), T-Zero temperatures are calculated and examined using JMatPro and Thermo-Calc software. Using the data obtained from the calculations, the linear regression methods are used to model the relationship between the variables and sensitivity analysis is performed. It has been observed that alloying elements are effective on SFE, martensitic transformation temperatures and T-Zero temperature.

Subject Keywords

Hadfield Steels, Martensitic Transformation, Stacking Fault Energy, Sensitivity Analysis, Computational Materials Engineering

URI

https://hdl.handle.net/11511/109836

Collections

Graduate School of Natural and Applied Sciences, Thesis