Micro Scale Abrasive Wear
Mostrando 1-4 de 4 artigos, teses e dissertações.
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1. Micro-Scale Abrasive Wear Testing of CrN Duplex PVD Coating on Pre-Nitrided Tool Steel
Specific wear rates were calculated from a series of micro-scale abrasive tests by means of the calotte-grinding method. The tested material was a CrN coating deposited by arc evaporation on ion-nitrided AISI H13 steel. Characterizations included: phase analysis, chemical composition, metallography, microhardness, micro-scratch resistance and nano-indentatio
Mat. Res.. Publicado em: 22/06/2017
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2. Estudo do desgaste e atrito em ensaios micro-abrasivos por esfera rotativa fixa em condições de força normal constante e pressão constante. / Wear and friction study in micro-abrasive wear testing by rotative fixed ball under conditions of constant normal force and constant pressure.
The micro-scale abrasive wear test by rotative ball has gained large acceptance in universities and research centers, being widely used in studies on the abrasive wear of materials. Two wear modes are usually observed in this type of test: rolling abrasion results when the abrasive particles roll on the surface of the tested specimen, while grooving abrasion
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 01/06/2011
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3. Deposição de revestimentos compositos metal-ceramico WC-Co por fusão a laser : avaliação da resistencia ao desgaste e a corrosão
In the present work the laser c1adding process was used to produce WC-Co composite coatings with varied fractions of WC. The AISI 1045 steel was used as substrate. The coatings were produced afier severa! tests, which have permitted the determination of optimum operational parameters. The characterization ofthe coatings was performed by optic microscopy, sca
Publicado em: 2004
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4. Obtenção de revestimentos dúplex por nitretação a plasma e PVD-TiN em aços ferramenta AISI D2 e AISI H13. / Duplex coatings on AISI H13 and AISI D2 tool steels by using plasma nitriding and TiN-PVD.
In this work, the influence of both the microstructure and the load-bearing capacity of nitrided layers, formed on top of AISI D2 and AISI H13 tool steels, on adhesion and wear resistance of PVD-TiN coatings was studied. The threshold nitriding potential curves for the above mentioned steels and the optimum conditions of the pre-treatments which increased th
Publicado em: 2003