The Impact of Induced Shot Peening Residual Stresses on Metallic Components of SAE 1020 Steel with Pre-Existing Compressive Stresses
| Autor: | Tetyana Gurova, Anatoli Leontiev, Tatiana Santos da Cunha, Patrícia dos Santos Matta, Heitor Ferreira Werner, Suzana Bottega Peripolli, Eustáquio de Souza Baêta Júnior |
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| Jazyk: | angličtina |
| Rok vydání: | 2024 |
| Předmět: | |
| Zdroj: | Materials Research, Vol 27 (2024) |
| Druh dokumentu: | article |
| ISSN: | 1516-1439 1980-5373 |
| DOI: | 10.1590/1980-5373-mr-2023-0305 |
| Popis: | An experimental study on the distribution of residual stresses induced by shot peening on samples of SAE 1020 steel with pre-existing compressive stresses is presented. Two samples with similar geometries were subjected to a heat treatment to relieve stress. Then, one of the samples was subjected to a cementation process to introduce compressive residual stresses. Both samples, with and without cementation, were subjected to the same shot peening treatment. Using X-ray diffraction and electrolytic polishing to remove superficial layers, the depth-resolved residual stress distribution was obtained. It was concluded that the effect of pre-existing compressive stresses should be considered as a factor that influences the final distribution of the residual stresses induced by shot peening, namely the maximum of shot peening induced residual stresses moves closer to the surface in a sample with large initial compressive stresses and its value is greater than the maximum value for a specimen with lower initial compressive stresses. |
| Databáze: | Directory of Open Access Journals |
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