Development of nickel-phosphorus coatings containing micro particles of talc phyllosilicates

被引：21

作者：

Alexis, Joel ^{[1
]}

Gaussens, Clelia ^{[1
]}

Etcheverry, Bernard ^{[2
]}

Bonino, Jean-Pierre ^{[3
]}

机构：

[1] Univ Toulouse, Ecole Natl Ingn Tarbes, Lab Genie Prod, INPT ENIT, F-65016 Tarbes, France

[2] ALSTOM TRANSPORT, F-65601 Semeac, France

[3] Univ Toulouse 3, CIRIMAT CNRS, UMR 5085, F-31062 Toulouse 4, France

来源：

MATERIALS CHEMISTRY AND PHYSICS | 2013年 / 137卷 / 03期

关键词：

Mechanical properties; Coatings; Adhesion; Composite materials; Hardness; FRACTURE-TOUGHNESS TEST; NI-3.6 AT.PERCENT P; INDENTATION FRACTURE; WEAR-RESISTANCE; SHEAR-STRENGTH; HEAT-TREATMENT; PTFE COATINGS; COMPOSITE; NIP; ELECTRODEPOSITION;

D O I：

10.1016/j.matchemphys.2012.09.049

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The present work aims to characterized nickel phosphorus coatings co-deposited with talc particles on steel. The NiP-talc composite deposits were developed to serve as hard coatings with a lubricating effect at 600 degrees C. This process, which is free of hexavalent chromium, could provide a reliable substitute for the electrodeposition of hard chromium coating used in industrial applications. Local responses to static and dynamic mechanical loading have been obtained by nano- and microhardness, microtensile and nano-scratch testing. The hardness and stiffness values slightly decrease when the amount of talc increases for untreated coatings. In contrast, a 420 degrees C heat treatment leads to high hardness and Young's modulus values due to crystallization. Moreover, a 600 degrees C heat treatment lowers these values through overageing. A 420 degrees C heat treatment greatly improves the adherence and the cohesion of the coatings containing talc. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：723 / 733

页数：11

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