The effect of shot peening on residual stress distribution of heat treated and ground AISI 9310 alloy steel

Date

2024-1

Author

Emiroğlu, Sena

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The residual stress pattern of components treated by shot peening is determined by many influencing factors regarding to shot peening process parameters and the characteristics of preceding manufacturing stages. The relation between the residual stress distribution and different intensity and coverage values obtained as a consequence of shot peening operation on hard surfaces has not been investigated yet. The main objective of this work is to examine the residual stress states in case carburized and ground specimens made of AISI 9310 steel subjected to shot peening treatment with distinct variables in terms of peening intensity and coverage. In order to hit the target, residual stress profiles of multiple samples subjected to carburizing, hardening, grinding and shot peening operation with varying parameters were attained via X-Ray Diffraction (XRD) and electropolishing method for both surface and sub-surface stresses. Additionally, carbon depth profiles, retained austenite contents, surface roughness values, microhardness results and surface textures of samples were analyzed to make a correlation with resultant residual stress values.

Subject Keywords

Case carburizing, Shot peening, Residual stress, X-ray diffraction

URI

https://hdl.handle.net/11511/108408

Collections

Graduate School of Natural and Applied Sciences, Thesis