Journal of Materials Engineering and Performance

, Volume 25, Issue 9, pp 3931–3937 | Cite as

Dry Sliding Wear Behavior of Hafnium-Based Bulk Metallic Glass at Room and Elevated Temperatures

  • Anup Kumar Keshri
  • Lovish Behl
  • Debrupa Lahiri
  • George S. Dulikravich
  • Arvind Agarwal


Dry sliding wear behavior of hafnium-based bulk metallic glass was studied at two loads (5 and 15 N) and two temperatures (298 and 673 K) using aluminum oxide (Al2O3) ball as a wear counterpart. At 5 N load, wear reduced by ~71% on increasing the temperature from 298 to 673 K. At a higher load of 15 N, the weight loss reduction was much lower (45%) on increasing the temperature from 298 to 673 K. Decreased wear weight loss on increasing the temperature was attributed to the increased hardness of the Hf-based metallic glass at high temperatures. Micro-hardness of the alloy at 293 K was found to be 636 Hv, which gradually increased to 655 Hv on annealing at 673 K. Improvement in the hardness at elevated temperature is attributed to: (1) free volume annihilation, (2) surface oxide formation and (3) nano-crystallites precipitation. Reduced wear at elevated temperature resulted in smaller volume of debris generation that restricted three-body wear to obtain lower coefficient of friction (COF) (0.25-0.35) compared to COF (0.65-0.75) at room temperature.


elevated temperature hafnium metallic glass sliding wear 



AKK and AA at Florida International University (FIU) acknowledge Professor Todd Hufnagel at Johns Hopkins University (JHU) for the synthesis of samples in his laboratory. GSD and AA also acknowledge the research Grant W911NF-06-1-0328 from US Army Research Office. The support from Advanced Materials Engineering Research Institute (AMERI), FIU for facilitating the characterization facilities is greatly appreciated.

Compliance with Ethical Standards

Conflict of interest

The authors declare that they have no conflicts of interest.


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Copyright information

© ASM International 2016

Authors and Affiliations

  • Anup Kumar Keshri
    • 1
    • 4
  • Lovish Behl
    • 1
  • Debrupa Lahiri
    • 1
    • 2
  • George S. Dulikravich
    • 3
  • Arvind Agarwal
    • 1
  1. 1.Plasma Forming Laboratory, Department of Mechanical and Materials EngineeringFlorida International UniversityMiamiUSA
  2. 2.Department of Metallurgical and Material EngineeringIndian Institute of Technology RoorkeeRoorkeeIndia
  3. 3.MAIDROC, Mechanical and Materials EngineeringFlorida International UniversityMiamiUSA
  4. 4.Department of Material Science and EngineeringIndian Institute of Technology PatnaPatnaIndia

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