Affiliation:
1. Department of Production Engineering, Mechanical Engineering Faculty, Lublin University of Technology, Nadbystrzycka 38D, 20-618 Lublin, Poland
Abstract
This article presents an analysis of the impact of vibratory shot peening on the surface roughness and physical properties of the Ti6Al4V titanium alloy surface layer after milling. The elements of machine parts and structures made of titanium alloys are often exposed to variable loads during operation. Therefore, it is advisable to apply methods that enhance functional properties and increase the durability of interacting components. Increasing the operational durability of such elements can be achieved by vibratory shot peening. Variable amplitudes A = 24; 33; 42; 51; 60 mm and times t = 1; 7; 13; 19; 25 min were applied. It has been demonstrated that it is possible to achieve a threefold reduction in the roughness parameter, Sa = 0.344 µm, compared with milling, Sa = 0.95 µm. An increase in Smr(c) areal material ratio was observed after vibratory shot peening compared with milling. It has been shown that amplitude has a greater impact on the increase in hardening of the surface layer gh compared with time. The highest rate of change in surface roughness and thickness of the hardened layer was achieved at a vibratory shot-peening time of t = 13 min. The greatest thickness of the hardened layer, exceeding 200 µm, was obtained after shot peening with an amplitude of A = 60 mm.
Funder
Ministry of Education and Science
Mechanical Engineering Discipline Fund of Lublin University of Technology
Subject
General Materials Science
Reference46 articles.
1. Classification and Applications of Titanium and Its Alloys;Pushp;Mater. Today Proc.,2022
2. An Overview on the Use of Titanium in the Aerospace Industry;Boyer;Mater. Sci. Eng. A,1996
3. A Review on Titanium and Titanium Alloys with Other Metals for Biomedical Applications Prepared by Powder Metallurgy Techniques;Gummadi;Mater. Today Proc.,2023
4. Schwartz, A., Kossenko, A., Zinigrad, M., Danchuk, V., and Sobolev, A. (2023). Cleaning Strategies of Synthesized Bioactive Coatings by PEO on Ti-6Al-4V Alloys of Organic Contaminations. Materials, 16.
5. Structural, and Tribological Properties of Nanostructured α + β Type Titanium Alloys for Total Hip;Hezil;J. Mater. Res. Technol.,2022