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Tailoring age hardening of Ti1-xAlxN by Ta alloying
(Department Physical Metallurgy and Materials Testing, Montanuniversit€at Leoben, Franz-Josef-Straße 18, 8700 Leoben, Austria)
(Department Physical Metallurgy and Materials Testing, Montanuniversit€at Leoben, Franz-Josef-Straße 18, 8700 Leoben, Austria)
(Department Physical Metallurgy and Materials Testing, Montanuniversit€at Leoben, Franz-Josef-Straße 18, 8700 Leoben, Austria)
(Ceratizit Austria GmbH, Metallwerk-Plansee-Straße 71, 6600 Reutte, Austria)
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2017 (English)In: Journal of Vacuum Science & Technology. A. Vacuum, Surfaces, and Films, ISSN 0734-2101, E-ISSN 1520-8559, Vol. 35, no 060604Article in journal (Refereed) Published
Abstract [en]

The microstructure, mechanical properties, and thermal stability of arc evaporated Ti1-x-yAlxTayN hard coatings were systematically investigated by varying the Ta content in the range of 0<y<0.231. A combination of differential scanning calorimetry and vacuum annealing up to 1500°C with subsequent x-ray diffraction analysis and nanoindentation measurements provided comprehensive insight into the microstructural evolution of the coatings and the resulting impact on their mechanical properties. With the addition of Ta to the metastable Ti1-xAlxN solid solution, spinodal decomposition and wurtzite phase formation are shifted to higher temperatures. Consequently,the temperature range where Ta-alloyed coatings maintain their hardness is extended up to 1000°C.

Place, publisher, year, edition, pages
2017. Vol. 35, no 060604
National Category
Manufacturing, Surface and Joining Technology
Identifiers
URN: urn:nbn:se:liu:diva-151264DOI: 10.1116/1.4995000OAI: oai:DiVA.org:liu-151264DiVA, id: diva2:1248140
Available from: 2018-09-14 Created: 2018-09-14 Last updated: 2018-09-14

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Publisher's full texthttp://dx.doi.org/10.1116/1.4995000
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Journal of Vacuum Science & Technology. A. Vacuum, Surfaces, and Films
Manufacturing, Surface and Joining Technology

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  • apa
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  • ieee
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  • vancouver
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  • de-DE
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  • en-US
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