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EXPERIMENTAL INVESTIGATION OF FRACTURE TOUGHNESS, HARDNESS AND LOAD-INDENTATION DEPTH RESPONSE OF TI-64 USING VICKERS INDENTATION TECHNIQUE

Riaz Muhammad1*, Naseer Ahmeda, Abdul Basit2, Rizwan Alim Mufti2 

1 Mechanical Engineering Department, CECOS University of IT and Emerging Sciences, Peshawar, Pakistan.
2Department of Mechanical Engineering, PIEAS, Islamabad, Pakistan. 

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. 

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Journal of Engineering and Applied Sciences

December

Vol. 42, pp. 01-48

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