Tecnologia em Metalurgia, Materiais e Mineração
Tecnologia em Metalurgia, Materiais e Mineração
Artigo Original


Ronaldo Câmara Cozza, Jorge Thiago de Sousa Lima Wilcken, Cláudio Geraldo Schön

Downloads: 0
Views: 77


The purpose of this work is to study the influence of abrasive wear modes on the coefficient of friction (μ) of thin films. Initially, free rotative-ball micro-abrasive wear testing equipment was designed and constructed to measure the coefficient of friction on the tribological system “thin film – abrasive slurry – test sphere”. Experiments were conducted with thin films of TiN, CrN, TiAlN, ZrN, TiZrN, TiN/TiAlN, TiN/TiAlN (multi-layer), TiHfC and TiHfCN using a ball of AISI 52100 steel and abrasive slurries prepared with black silicon carbide (SiC) particles and glycerine. The aim of this design was to produce “grooving abrasion” and “rolling abrasion” on the surface of thin films. The normal force (N) and the tangential force (T) were monitored throughout the tests, and the coefficient of friction was calculated as μ = T/N. Aside from the thin film type, e.g., for all thin films studied, the results that have been obtained in this work show that the abrasive slurry concentration affected the abrasive wear modes (“grooving abrasion” or “rolling abrasion”) and, consequently, the magnitude of the coefficient of friction: i) a low abrasive slurry concentration was related with grooving abrasion and a relatively high coefficient of friction; ii) a high abrasive slurry concentration was related with rolling abrasion and a relatively low coefficient of friction.


Abrasion; Grooving abrasion; Rolling abrasion; Thin films; Coefficient of friction.


1 Rutherford KL, Hutchings IM. Theory and application of a micro-scale abrasive wear test. Journal of Testing and Evaluation – JTEVA. 1997;25(2):250-260.

2 Cozza RC. A study on friction coefficient and wear coefficient of coated systems submitted to micro-scale abrasion tests. Surface and Coatings Technology. 2013;215:224-233.

3 Cozza RC, Tanaka DK, Souza RM. Friction coefficient and abrasive wear modes in ball-cratering tests conducted at constant normal force and constant pressure – Preliminary results. Wear. 2009;267:61-70.

4 Cozza RC, Rodrigues LC, Schön CG. Analysis of the micro-abrasive wear behavior of an iron aluminide alloy under ambient and high-temperature conditions. Wear. 2015;330-331:250-260.

5 Mergler YJ, Huis in ’t Veld AJ. Micro-abrasive wear of semi-crystalline polymers. Tribology and Interface Engineering Series. 2003;41:165-173.

6 Cozza RC, Tanaka DK, Souza RM. Micro-abrasive wear of DC and pulsed DC titanium nitride thin films with different levels of film residual stresses. Surface and Coatings Technology. 2006;201:4242-4246.

7 Batista JCA, Godoy C, Matthews A. Micro-scale abrasive wear testing of duplex and non-duplex (single-layered) PVD (Ti,Al)N, TiN and Cr-N coatings. Tribology International. 2002;35:363-372.

8 Schiffmann KI, Bethke R, Kristen N. Analysis of perforating and non-perforating micro-scale abrasion tests on coated substrates. Surface and Coatings Technology. 2005;200:2348-2357.

9 Kusano Y, Van Acker K, Hutchings IM. Methods of data analysis for the micro-scale abrasion test on coated substrates. Surface and Coatings Technology. 2004;183:312-327.

10 Rutherford KL, Hutchings IM. A micro-abrasive wear test, with particular application to coated systems. Surface and Coatings Technology. 1996;79:231-239.

11 Cozza RC, Recco AAC, Tschiptschin AP, Souza RM, Tanaka DK. Análise comportamental dos coeficientes de atrito e desgaste de sistemas revestidos submetidos a desgaste micro-abrasivo. Tecnologica em Metalurgia, Materiais e Mineração. 2010;6(4):237-244.

12 Cozza RC. Influence of the normal force, abrasive slurry concentration and abrasive wear modes on the coefficient of friction in ball-cratering wear tests. Tribology International. 2014;70:52-62.

13 Neville A, Kollia-Rafailidi V. A comparison of boundary wear film formation on steel and a thermal sprayed Co/Cr/Mo coating under sliding conditions. Wear. 2002;252:227-239.

14 Dhanasekaran S, Gnanamoorthy R. Abrasive wear behavior of sintered steels prepared with MoS2 addition. Wear. 2007;262:617-623.

15 Ceschini L, Palombarini G, Sambogna G, Firrao D, Scavino G, Ubertalli G. Friction and wear behaviour of sintered steels submitted to sliding and abrasion tests. Tribology International. 2006;39:748-755.

16 Shipway PH. A mechanical model for particle motion in the micro-scale abrasion wear test. Wear. 2004;257:984-991.

17 Kusano Y, Hutchings IM. Sources of variability in the free-ball micro-scale abrasion test. Wear. 2005;258:313-317.

18 Cozza RC. Estudo do desgaste e atrito em ensaios micro-abrasivos por esfera rotativa fixa em condições de “força normal constante” e “pressão constante” [tese]. São Paulo: Escola Politécnica da Universidade de São Paulo; 2011.

19 Cozza RC, Wilcken JTSL, Delijaicov S, Donato GHB. Tribological characterization of thin films based on residual stress, volume of wear, micro-abrasive wear modes and coefficient of friction. In: Proceedings of the “ICMCTF 2017 – 44th International Conference on Metallurgical Coatings and Thin Films”; 2017 Apr 24-28; San Diego – California, USA. San Diego: AVS – American Vacuum Society.

20 Cozza RC, Donato GHB. Study of the influence of the abrasive slurry concentration on the coefficient of friction of thin films submitted to micro-abrasive wear. In: Proceedings of the “PacSurf 2016 – Pacific Rim Symposium on Surfaces, Coatings & Interfaces”; 2016 Dec 11-15; 2016; Kohala Coast – Hawaii, USA. Kohala Coast: AVS – American Vacuum Society.

21 Cozza RC, Wilcken JTSL, Schon CG. Influence of abrasive wear modes on the volume of wear and coefficient of friction of thin films. In: Proceedings of the “CoSI 2015 – 11th Coatings Science International”; 2015 June 22-26; Noordwijk – The Netherlands. Noordwijk: Springer.

22 Trezona RI, Allsopp DN, Hutchings IM. Transitions between two-body and three-body abrasive wear: influence of test conditions in the microscale abrasive wear test. Wear. 1999;225-229:205-214.

5c12a20c0e8825d40afd3a70 tmm Articles
Links & Downloads

Tecnol. Metal. Mater. Min.

Share this page
Page Sections