Study of the mechanical properties of ST-37 steel by cold forming using severe vibratory peening
DOI:
https://doi.org/10.64943/jkc.2026.040216Keywords:
Severe vibratory peening (SVP), shot peening(SP), Surface severe plastic deformation (SSPD), hardness, vibratory finishing, wear test, Scanning Electron Microscope (SEM), Optical microscope (OM), Fatigue, laser cutting, X-Ray Diffraction (XRD),Abstract
In this research, the mechanical and microstructure properties of ST-37 steel were investigated after treatment with severe vibratory peening (SVP) to highlight the performance and potential of this innovative treatment within the field of surface severe plastic deformation (SSPD). St-37 carbon steel samples were subjected to Severe vibratory peening treatment at three levels, Scanning electron microscopy (SEM) and optical microscopy (OM) images revealed a two-layer gradient structure. X-ray diffraction (XRD) analysis showed the complete disappearance of the oxide layer, as well as surface nanocrystalline crystallization resulting from severe plastic deformation (SPD). Microhardness testing revealed average improvement. Severe vibratory peening resulted in increased hardness from surface to depth. In wear and friction tests, the volume loss after severe vibratory peening was less; in addition, coefficient of friction of the untreated sample was the lowest under all loads. It has been observed that this technique produces a deeper surface formation and removes unwanted oxide layers.
Downloads
Published
Issue
Section
License
Copyright (c) 2026 Taj Al-Ma'rifa Journal
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
Authors who publish with this journal agree to the following terms:
-
Copyright Retention: Authors retain copyright and grant the journal right of first publication.
-
Licensing: The work is simultaneously licensed under a Creative Commons Attribution-NonCommercial 4.0 International License (CC BY-NC 4.0).
-
Third-Party Rights: This license allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal. Commercial use of the work is not permitted without explicit permission.
-
Self-Archiving: Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) subsequent to publication, as it can lead to productive exchanges, as well as earlier and greater citation of published work.
