Thermal stability of Al–Cr–N hard coatings

Thermal stability of Al–Cr–N hard coatings

Heat treatment of arc-evaporated cubic Al 0.7Cr 0.3N hard coatings in Ar up to 1450 °C causes precipitation of AlN. The Cr-enriched matrix transforms into Cr via Cr 2N under N 2 release. These reactions are investigated by simultaneous thermal analysis, mass spectrometry, X-ray diffraction, and anal...

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Veröffentlicht in:Scripta materialia 2006-06, Vol.54 (11), p.1847-1851
Hauptverfasser: Willmann, H., Mayrhofer, P.H., Persson, P.O.Å., Reiter, A.E., Hultman, L., Mitterer, C.
Format: Artikel
Sprache:eng
Schlagworte:
AlCrN
Aluminum
Analytical electron microscopy
Applied sciences
Chromium
Decomposition
Differential scanning calorimetry
Diffraction
Exact sciences and technology
Hard surfacing
Mathematical analysis
Metals. Metallurgy
NATURAL SCIENCES
NATURVETENSKAP
Precipitation
Thermogravimetric analysis
Transforms
X-rays
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Beschreibung
Zusammenfassung:Heat treatment of arc-evaporated cubic Al 0.7Cr 0.3N hard coatings in Ar up to 1450 °C causes precipitation of AlN. The Cr-enriched matrix transforms into Cr via Cr 2N under N 2 release. These reactions are investigated by simultaneous thermal analysis, mass spectrometry, X-ray diffraction, and analytical transmission electron microscopy.
ISSN:1359-6462
0956-716X
1872-8456
1872-8456
DOI:10.1016/j.scriptamat.2006.02.023