Monotonic and cyclic behavior of the nitrogen ion-implanted commercially pure-titanium

  • N. Ali Department of Mechanical and Industrial Engineering, Faculty of Engineering, Universitas Syiah Kuala, Banda Aceh 23111, Indonesia. Phone: +62 8126906380
  • M.S. Mustapa Faculty of Mechanical and Manufacturing Engineering, Universiti Tun Hussein Onn Malaysia, 86400 Batu Pahat, Johor, Malaysia
  • T. Sujitno National Nuclear Energy Agency of Indonesia, Jalan Babarsari PO Box 6101 Ykbb, Yogyakarta 55281, Indonesia
  • T.E. Putra Department of Mechanical and Industrial Engineering, Faculty of Engineering, Universitas Syiah Kuala, Banda Aceh 23111, Indonesia. Phone: +62 8126906380
  • Husaini . Department of Mechanical and Industrial Engineering, Faculty of Engineering, Universitas Syiah Kuala, Banda Aceh 23111, Indonesia. Phone: +62 8126906380
Keywords: Monotonic-cyclic behavior, Ion implantation, Cp-Ti fatigue, corrosion- fatigue, stress-cycle relationships

Abstract

This research aims to study the behavior of monotonic and cyclic plastic deformation on commercially pure titanium which has undergone surface treatment using the nitrogen ion implantation method. The doses of 2.0×1017 ions/cm2 and the energy of 100 keV were used to implant the nitrogen ions into the CpTi. Monotonic properties tests were performed in a laboratory air and at room temperature using ASTM E8 standard specimens. Fatigue and corrosion fatigue tests were conducted in a laboratory  air and in artificial saline solutions, at room temperature using ASTM 1801-97 specimens. Tensile tests were carried out with constant displacement rate and fatigue tests were carried under fully-reversed with stress-controlled conditions with stress amplitudes 230, 240, 250, 260, 270 and 280 MPa. The results showed the material properties of monotonic behavior for CpTi and Nii-Ti; tensile strength (σu) of 497 and 539 MPa and for 0.2% offset yield strength (σy) of 385 and 440 MPa, respectively and of cyclic behavior; cyclic strength coefficient (k’) of 568.41 and 818.64 and cyclic strain hardening exponent (n’) of 0.176 and 0.215, respectively. This study has succeeded in producing useful new material properties that will contribute to the field of material science and engineering.

Published
2021-03-05
How to Cite
Ali, N., Mustapa, M., Sujitno, T., Putra, T., & ., H. (2021). Monotonic and cyclic behavior of the nitrogen ion-implanted commercially pure-titanium. Journal of Mechanical Engineering and Sciences, 15(1), 7662 - 7670. https://doi.org/10.15282/jmes.15.1.2021.04.0604
Section
Article