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Toward hard yet tough CrAlSiN coatings via compositional grading

  • Yu Xi Wang
  • , Sam Zhang*
  • , Jyh Wei Lee
  • , Wen Siang Lew
  • , Deen Sun
  • , Bo Li
  • *Corresponding author for this work
  • Nanyang Technological University
  • Ming Chi University of Technology
  • Singapore Epson Industrial Pte. Ltd.
  • China Iron and Steel Research Institute Group

Research output: Contribution to journalArticlepeer-review

Abstract

A set of CrAlSiN coatings was synthesized in homogenous and graded composition via magnetron sputtering in mixed Ar and N2 ambient. The microstructures are investigated using glancing angle X-ray diffractometry, field emission scanning electron microscopy and transmission electron microscopy. With compositional grading, CrAlSiN coatings exhibit much improved scratch adhesion strength and better crack propagation resistance at a little expense of hardness.

Original languageEnglish
Pages (from-to)346-352
Number of pages7
JournalSurface and Coatings Technology
Volume231
DOIs
StatePublished - 25 Sep 2013
Externally publishedYes

Keywords

  • CrAlSiN
  • Gradient structure
  • Magnetron sputtering
  • Toughness

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