Plastic deformations, such as those obtained by shot peening on specimen surface, are an efficient way to improve the mechanical behavior of metals. Generally, scanning electron microscopy (SEM) and electron backscattered diffraction (EBSD) are commonly used to observe the complex microstructural evolutions, such as grain refinement and phase transformation, induced by the surface treatment. In...

In the paper there will be introduced method for relative determination of induced kinetic energy of hardened balls on treated surface, which was invented by J. Alemen. In our experimental work we were focused on measuring Barkhausen noise signals and comparison with microstructure, microhardness, and residual stress analysis of surface roughness. In process of shot peening there is occurrence ...

The present study reveals for the first time dry sliding wear behavior of a powder metallurgical pure titanium alloy (Cp-Ti) modified by shot peening. Cp-Ti samples were manufactured via metallurgy, and then their surface subsurface features using custom-made, fully automated shot-peening system. texture isotropy rate highest orientation angle shot-peened 71.5% 36°, respectively. Abbott curves ...

A numerical modelling approach capable of simulating Shot Peening (SP) processes of industrial interest was developed by combining the Discrete Element Method (DEM) with the Finite Element Method (FEM). In this approach, shot-shot and shot-target interactions as well as the overall shot flow were simulated efficiently using rigid body dynamics. A new algorithm to dynamically adapt the coefficie...

Mechanical properties determined by fatigue strength, ductility, and toughness are important measures for osteosynthesis plates in order to tolerate some load-bearing situations caused by muscle contractions and weight-bearing effects. Previous study indicated that Indonesian-made plates showed lower mechanical strength compared to the European AO standard plate. High stress under load-bearing ...

To upgrade the performance of welded joints the various improvement methods are used. Shot peening is one of the improvement method used to strengthen the properties of welded joints. GMAW process is very well suited for welding of AISI 304 austenitic stainless steels. Regression analysis is the statistical modeling technique, and it is suitable for the majority of predicting problems. It is va...

This paper gives an overview of how to predict the intensity of the shot peening process using currently available technology. Methodology, tools, and software are also discussed. Real life examples are presented in the areas of optimization, troubleshooting, and process modeling.