Experimental Investigation of Fracture Toughness, Hardness and Load-Indentation Depth Response of Ti-64 using Vickers Indentation Technique

  • Riaz Muhammad CECOS University of IT and Emerging Sciences
  • Naseer Ahmed Department of Mechanical Engineering, CECOS university of IT and Emerging Sciences, Peshawar, KPK, Pakistan
  • Abdul Basit Department of Mechanical Engineering, PIEAS, Islamabad, Pakistan
  • Rizwan Alim Mufti Department of Mechanical Engineering, PIEAS, Islamabad, Pakistan
Keywords: Fracture toughness, Vickers Indentation, Indentation Energy Model, Ti-64

Abstract

Titanium alloys display the matchless blend of physical and mechanical properties which have made them appropriate for aerospace, chemical, and biomedical industries services. Preeminent strength-to-density ratio, reduced density, incomparable corrosion resistance and tremendous properties at elevated temperature are the main attribute of titanium alloys. These alloys also exhibit low modulus of elasticity, making it ideal for spring, body implant, dental fixtures and different sports equipment. Ti-64 accounting for more than 50 percent of titanium usage in today modern world high-tech industries subjected to various nature of cyclic loading.

This study includes the experimental assessment of fracture toughness of Ti-64 using indentation technique which is easy and fast experimental techniques. For this purpose Vickers-indentation technique is employed to report the hardness followed by fracture toughness evaluation of the studied alloy using indentation energy model. The indentation method resulted a fracture toughness of the studied alloy with 14.5% when compared to the results obtained from strain dependent ductile damage model.   

Author Biography

Riaz Muhammad, CECOS University of IT and Emerging Sciences

Mechanical Engineering Department, CECOS University of IT and Emerging Sciences.

References

[1] R. Chen, F. Yang, M. A. Imam, C.R. Feng, P. Pao: Microindentation of titanium: dependence of plastic energy on the indentation depth and time-dependent plastic deformation," pp. 4-7, 2008.
[2] S. Amiri, N. Lecis, A. Manes, M. Giglio: A study of a micro-indentation technique for estimating the fracturetoughness of Al6061-T6," Mechanics Research Communications, 2013.
[3] ASTM E 384 – 99e1 Standard test method for microindentation hardness of materials1".
[4] W.C. Oliver, G.M. Pharr: Measurement of hardness and elastic modulus by instrumented indentation: Advances in understanding and refinements to methodology," 2003.
[5] J. Li, F. Li, X. Ma, Q. Wang, J. Dong, Z. Yuan: A strain-dependent ductile damage model and its application in the derivation of fracture toughness by micro-indentation," Materials and Design, 2014.
[6] M. He, F. Li, J. Cai , B. Chen: An indentation technique for estimating the energy density as fracture toughness with Berkovich indenter for ductile bulk materials," Theoretical and Applied Fracture Mechanics, 2011.
[7] Fischer-cripps, "Nanoindentation Testing," 2011.
[8] N. Poondla, , T.S. Srivatsan, A. Patnaik, M. Petraroli: A study of the microstructure and hardness of two titanium alloys: Commercially pure and Ti–6Al–4V, Journal of Alloys and Compounds, 2009.
[9] J. Dong, F. Li, C. Wang: Micromechanical behavior study of α phase with different morphologies of Ti–6Al–4V alloy by microindentation, Materials Science & Engineering A 580 (2013) 105–113, 2013.
[10] M. He, F. Li, J. Cai, B. Chen: An indentation technique for estimating the energy," Theoret Appl Fract Mech, 2011.
[11] M. I. Khan, A. Shakoor, K. Azam, M. Habib, R. Muhammad, S. A. Shah, A. Khan: Experimental and Numerical Analysis of Nanoindentation of Ti-6246 alloy, Particulate Science and Technology, Accepted, 2017.
Published
2018-12-31
How to Cite
Muhammad, R., Ahmed, N., Basit, A., & Mufti, R. (2018, December 31). Experimental Investigation of Fracture Toughness, Hardness and Load-Indentation Depth Response of Ti-64 using Vickers Indentation Technique. JOURNAL OF ENGINEERING AND APPLIED SCIENCES, 37(2). https://doi.org/https://doi.org/10.25211/jeas.v37i2.2198