Pengaruh Variasi Ukuran Bola Baja pada Proses Dry Shot Peening terhadap Mikrostruktur dan Kekerasan Material Implan AISI 316L


  • Mirza Pramudia Universitas Trunojoyo
  • Ahmad Sahru Romadhon Universitas Trunojoyo



Steel Ball, Dry Shot Peening, Solution Annealing, Microstructure, Hardness, AISI 316L


AISI 316L is a type of 316 austenitic stainless steel with characteristic very low carbon content. This material contains several elements such as molybdenum-chromium-nickel which are aimed to improve the corrosion and oxidation resistances at high temperature applications.  The low carbon content and the high level of corrosion resistance of AISI 316L allow this material to be applied to the surgical implant applications in the human body as well as on the welding applications. Several methods of surface treatment applied in AISI 316L are aimed to improve the mechanical properties and corrosion resistance. Dry shot peening is one of cold deformation processes which is conducted on the material surface to improve the mechanical strength. The process was performed by firing balls of steel with particular sizes of 0.5 mm, 1 mm, 2 mm, and 3 mm on specimens with a certain speed that comes from the pressure of the air compressor. The results show that parameter of shot angle at the dry shoot peening process has an influence on microstructure and hardness of the AISI 316L austenitic stainless steel. The highest value of hardness was achieved using 3 mm diameter of steel ball with the value of hardness reached 560 VHN on metal surface then gradually decreased as the depth increased.


Manisavagam., G., et all. 2010. “Biomedical Implants: Corrosion and its Prevention - A Review. Recent Patents on Corrosion Science. Volume 2 : 40-54.

Hansen., S.D. 2008. “Metal Corrosion in the Human Body : The Ultimate Bio-Corrosion Scenarioâ€. The Electrochemical Society Interface.

Ferber., c.a.. Greater strength, better biocompatibilityâ€. Sulzer, Techical Menu.

Harada, Y.,Fukaura, K., Haga S. 2007. “Influence of Microshot Peening on Surface Layer Characteristic of Structural Steelâ€. Journal of Material Processing Technology, Vol 32, pp. 3287-3292.

Carvalho, A.L.M., Voorwald, H.J’. 2007. “â€Inluence if Shot Peening and Hard Chromium Electroplating on the fatique strength of 7050-T7451)

Callister, Jr., 2001. “Fundamentals of Materials Science and Engineeringâ€, Interactive e Text, John Wiley & Sons, Fifth Edition, 177 – 231.

Manivasagam G, Mudali UK, Asokamani R, Raj B. 2003. “Corrosion and microstructural aspects of titanium and its alloysâ€. Corrosion Rev 2003; 21: 125-59

Dearnley PA. 2005. “A brief review of test methodologies for surface engineered biomedical implant alloysâ€. Surf Coat Technology 98: 483-90.

G.K. Triantafyllidis, A.V. Kazantzis, K.T. Karageorgiou. 2007. “Premature fracture of a stainless steel 316L orthopaedic plate implant by alternative episodes of fatigue and cleavage decoherence, Enggineering Failure Analysisâ€. Vol. 14. pp. 1346–1350.

S.H. Teoh. 2000. “Fatigue of biomaterials: a review, International Journal of Fatigueâ€, Vol. 22. pp. 825–837