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Lundberg, M., Peng, R.L., Ahmad, M., Vuoristo, T., Bäckströme, D. and Johansson, S. Influence of Shot Peening Parame-ters on Residual Stresses in Flake and Vermicular Cast Irons. Department of Management and Engineering, Linköping University, Linköping, Sweden.

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• TITLE: Influence of Shot Peening on DIN 1.2714 Hot Work Tool Steel

  AUTHORS: Valmik Bhavar, Sachin V. Patil, Prakash Kattire, P. P. Date, R. K. P. Singh

  KEYWORDS: Shot Peening, Surface Enhancement Techniques, Tool Steel

  JOURNAL NAME: Journal of Materials Science and Chemical Engineering, Vol.5 No.1, January 16, 2017

  ABSTRACT: Shot peening is one of the most popular surface enhancement technique used to improve fatigue performance of different materials. This paper focuses on to study the effect of different shot peening parameters on micro-structural and mechanical properties of DIN 1.2714 tool steel specimens. Shot peening treatments were carried out by varying shot size and peening intensity. X-ray stress analysis, micro-hardness testing and micro-structural analysis were performed to characterize these specimens. In addition, pin on disk wear testing was executed to recognize wear behavior of this shot peened tool steels. It was observed that along with compressive residual stress generation, shot peening also induces work hardening effect and modifies surface structure which are responsible for significant improvement in this tool steel.