Wear behavior of gas tunnel type plasma sprayed Zr-based metallic glass composite coatings

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal

19 Scopus Citations
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Author(s)

  • S. Yugeswaran
  • A. Kobayashi
  • K. Suresh
  • K. P. Rao
  • B. Subramanian

Detail(s)

Original languageEnglish
Pages (from-to)8460-8468
Journal / PublicationApplied Surface Science
Volume258
Issue number22
Publication statusPublished - 1 Sep 2012

Abstract

Gas tunnel type plasma spraying is a prospective method to produce metallic glass composite coatings with high quality due to its noteworthy feature of process controllability. In this study, Zr 55Cu 30Al 10Ni 5 metallic glass composite coatings were produced by gas tunnel type plasma spraying torch under optimum spraying conditions with selected plasma currents. The formation mechanism, sliding, and erosive wear behaviors of the coatings with respect to plasma current was examined. The phase and thermal analyses as well as microstructure of the plasma sprayed coatings produced at different plasma currents were characterized using X-ray diffraction (XRD), differential scanning calorimetry (DSC), scanning electron microscopy (SEM), and energy dispersive X-ray spectroscopy (EDX) techniques. The sliding and erosive wear behaviors of the coatings were studied using a pin-on-disc and a specially designed erosive wear tester, respectively. The results showed that an increase in plasma current increased the crystalline content in the metallic glass composite coatings, which enhanced the hardness and wear resistance of the coatings. © 2012 Elsevier B.V. All rights reserved.

Research Area(s)

  • Bulk metallic glass, Erosive wear, Gas tunnel type plasma torch, Sliding wear, Spray coatings

Citation Format(s)

Wear behavior of gas tunnel type plasma sprayed Zr-based metallic glass composite coatings. / Yugeswaran, S.; Kobayashi, A.; Suresh, K.; Rao, K. P.; Subramanian, B.

In: Applied Surface Science, Vol. 258, No. 22, 01.09.2012, p. 8460-8468.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal