Friction Behavior of TiAlN, AlTiN and AlCrN Multilayer Coatings at Nanoscale

Year 2018, Volume: 11 Issue: 3, 451 - 458, 30.12.2018

Doğuş Özkan

https://doi.org/10.18185/erzifbed.430628

Cited By: 3

Abstract

Bu çalışmada H13 çeliği
üzerine fiziksel buharlaştırma yöntemi ile 3.5 mikron kalınlığa sahip çok
katmanlı TiAlN, AlTiN ve AlCrN kaplamalar yapılmıştır. Kaplamaların sürtünme
karakteristikleri sürtünme kuvveti mikroskopisi ile nano mertebede literatürde
ilk kez araştırılmıştır. Sürtünme kuvveti ölçümleri değişen yükler altında
atomic kuvvet mikroskopunun yatay kuvvet modunda gerçekleştirilmiştir. Sonuçlar
AlTiN kaplamasının diğer kaplamalara göre düşük yüzey enerjisi nedeni ile üç
kat daha az sürtünme katsayısına sahip olduğunu göstermiştir. Bu çalışmada
Amonton yasasının nano mertebede sürtünme katsayısını bulmada geçerli olduğu
gözlemlenmiştir.

Keywords

Amonton Yasasi, Elastik Modulü, Fiziksel Buharlaştirma ile Biriktirme, Sürtünme Kuvveti Mikroskopisi, Yüzey Enerjisi

Friction Behavior of TiAlN, AlTiN and AlCrN Multilayer Coatings at Nanoscale

Abstract

In this study, 3.5 μm
thick TiAlN, AlTiN, and AlCrN multilayer coatings were deposited on
the H13 steel surface by physical vapor deposition (PVD) method. Friction
behavior of these coatings was
investigated by friction force microscopy for the first time at nanoscale in the literature. Friction force
measurements were performed with the atomic
force microscopy lateral force mode at various loads. Results showed that the AlTiN coating had three times lower COF value
than the TiAlN and AlCrN coatings due to the lower surface energy. It was
observed in this study that Amonton’s law was valid for the COF evolution at
the nanoscale.

Keywords

Amonton’s Law, Elastic Modulus, Friction Force Microscopy, Physical Vapor Deposition (Pvd), Surface Energy

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