Sliding wear performance of TiAl-based nitride coatings deposited on ADI by cathodic arc deposition and plasma based ion implantation and deposition

IF 1.6 Q4 MATERIALS SCIENCE, COATINGS & FILMS Tribology - Materials, Surfaces & Interfaces Pub Date : 2022-06-17 DOI:10.1080/17515831.2022.2083405

Diego Alejandro Colombo, J. Quintana, A. Mandri, A. Márquez, R. Dommarco

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引用次数: 1

Abstract

ABSTRACT This work studied the sliding wear performance of TiAl-based nitride coatings synthesized on austempered ductile iron (ADI) by cathodic arc deposition (CAD) and plasma-based ion implantation and deposition (PBIID). Monolayer CAD TiAlN films and bilayer CAD and PBIID TiAl/TiAlN films deposited on an experimental device were analyzed and benchmarked against a commercial bilayer CAD film. Sliding wear was evaluated in a pin–on–disc tribometer. Two test conditions were employed, one intended to prevent damage (low load, short distance) and another intended to promote damage (higher load, longer distance). Regarding low load tests, all coated samples showed friction coefficients of 0.40–0.45 and negligible wear. Regarding high load tests, all coated variants exhibited lower or equal disc and pin wear rates with respect to uncoated ADI. In addition, coated samples displayed steady-state friction coefficients between 0.2 and 0.6 while uncoated ADI steady-state coefficients between 0.6 and 0.85. GRAPHICAL ABSTRACT

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阴极电弧沉积和等离子体离子注入沉积在ADI上的TiAl基氮化物涂层的滑动磨损性能

研究了阴极电弧沉积(CAD)和等离子体离子注入沉积(PBIID)在等温球墨铸铁(ADI)上合成的tial基氮化涂层的滑动磨损性能。对实验装置上沉积的单层CAD /TiAlN膜和双层CAD / PBIID TiAl/TiAlN膜进行了分析，并与商业双层CAD膜进行了基准测试。用针盘摩擦计评估滑动磨损。采用了两种试验条件，一种旨在防止损伤(低负荷，短距离)，另一种旨在促进损伤(高负荷，较远距离)。在低负荷测试中，所有涂层样品的摩擦系数为0.40-0.45，磨损可以忽略不计。在高负荷测试中，所有涂覆的变体都表现出与未涂覆的ADI相比更低或相等的盘和销磨损率。此外，涂层样品的稳态摩擦系数在0.2 ~ 0.6之间，而未涂层样品的稳态摩擦系数在0.6 ~ 0.85之间。图形抽象

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Tribology - Materials, Surfaces & Interfaces MATERIALS SCIENCE, COATINGS & FILMS-

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2.80

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