| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1657753 | Surface and Coatings Technology | 2013 | 7 Pages |
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.
► CrAlSiN coatings with gradient Si addition (from 0 to 8.5 at.%) are synthesized and characterized. ► Compositional gradient coating was dominant in columnar structure with refined CrAlN nanograins at the top. ► Improved scratch toughness and adhesion force were found in the gradient coatings as compared to the homogeneous coatings.
