Predicting high temperature mechanical properties of CrN and CrAlN coatings from in-situ synchrotron radiation X-ray diffraction

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

12 Scopus Citations
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Author(s)

  • Ehsan Mohammadpour
  • Zhong-Tao Jiang
  • Mohmmednoor Altarawneh
  • Zonghan Xie
  • Zhi-Feng Zhou
  • And 3 others
  • Nicholas Mondinos
  • Justin Kimpton
  • Bogdan Z. Dlugogorski

Detail(s)

Original languageEnglish
Pages (from-to)98-103
Journal / PublicationThin Solid Films
Volume599
Publication statusPublished - 29 Jan 2016

Abstract

This contribution investigates the phase composition of CrN and CrAlN coatings by in-situ high temperature synchrotron radiation (SR-XRD), with the coatings deposited on steel substrate by closed field unbalance magnetron sputtering. Rietveld refinement on the SR-XRD spectra indicated CrN as the major phase, over the temperature range of 25 °C - 700 °C, for both coatings. At the high temperature of 700 °C, a Cr2N phase was observed in the CrN coating while the CrAlN coating also had a Cr phase. Williamson-Hall plots, from the refined data, afforded estimating variations of the strain and crystallite size of the major phase, up to 700 °C. The crystallite size (10 nm) for the CrAlN coating, at 25 °C, agrees very well with previous GI-XRD and TEM results obtained at room temperature Li et al. (2012).

Research Area(s)

  • GSASII, Hard coatings, High temperature X-ray diffraction, Rietveld refinement, Strain, Synchrotron radiation, Williamson-Hall

Citation Format(s)

Predicting high temperature mechanical properties of CrN and CrAlN coatings from in-situ synchrotron radiation X-ray diffraction. / Mohammadpour, Ehsan; Jiang, Zhong-Tao; Altarawneh, Mohmmednoor; Xie, Zonghan; Zhou, Zhi-Feng; Mondinos, Nicholas; Kimpton, Justin; Dlugogorski, Bogdan Z.

In: Thin Solid Films, Vol. 599, 29.01.2016, p. 98-103.

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