THE EFFECT OF THE CONDITIONS OF SHOT PEENING THE INCONEL 718 NICKEL ALLOY ON THE GEOMETRICAL STRUCTURE OF THE SURFACE

• Main Authors: Kazimierz Zaleski, Agnieszka Skoczylas, Małgorzata Brzozowska
• Format: Article
• Language: English
• Published: Society of Polish Mechanical Engineers and Technicians 2017-06-01
• Series: Advances in Science and Technology Research Journal
• Subjects: surface roughness; shot peening; Inconel 718
• Online Access: http://www.journalssystem.com/astrj/The-effect-of-the-conditions-of-shot-peening-the-INCONEL-718-nickel-alloy-on-the-geometrical-structure-of-the-surface,74180,0,2.html

The article presents the research results of roughness and topography of the surface of Inconel 718 nickel alloy after shot peening. Evaluation of stereometric properties of the surface layer of the examined material was performed based on the amplitude, height and Abbott-Firestone curve parametres. The shot peening was carried out on the impulse shot peening stand. The impact energy Ej, distance between the traces xs and the ball diameter dk were changed in the range: Ej = 60 ÷ 240 mJ, xs = 0,15 ÷ 0,5 mm, dk = 3,95 ÷ 12,45 mm. The T8000 RC 120-140 device of the Hommel-Etamic company, along with the software, was used for measuring the surface roughness and for determining the material bearing curve. As a result of the machin-ing, the surface roughness was reduced and the selected functional parameters were improved.