Investigation of the adhesion strength and deformation behaviour of in situ fabricated NbC coatings by scratch testing

被引：48

作者：

Cai, Xiaolong ^{[1
]}

Xu, Yunhua ^{[1
,2
]}

Zhao, Nana ^{[1
]}

Zhong, Lisheng ^{[1
]}

Zhao, Ziyuan ^{[1
]}

Wang, Juan ^{[2
]}

机构：

[1] Xian Univ Technol, Sch Mat Sci & Engn, Xian 710048, Peoples R China

[2] Xian Univ Architecture & Technol, Shaanxi Key Lab Nanomat & Nanotechnol, Xian 710055, Peoples R China

来源：

SURFACE & COATINGS TECHNOLOGY | 2016年 / 299卷

基金：

国家高技术研究发展计划(863计划);

关键词：

NbC coating; Scratch; Crack; Adhesion strength; Deformation; NIOBIUM CARBIDE; MECHANICAL-PROPERTIES; STEEL; KINETICS; PRECIPITATION; RESISTANCE; TOUGHNESS; CORROSION; WEAR;

D O I：

10.1016/j.surfcoat.2016.05.004

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Niobium carbide (NbC) coatings on the surfaces of grey cast iron (HT300) substrates were produced by in situ synthesis combining casting with heat treatment. Transmission electron microscopy (TEM) and X-ray diffraction (XRD) analyses reveal that the coating consists of dense NbC grains and small amounts of of alpha-Fe. The grain size of NbC is 350 nm on average. Due to the improvement of the microstructure by ultrafine-grained NbC, the hardness and elastic modulus of the coating are 21.1 GPa and 376.1 GPa, respectively. The critical load in the micro-scratch test is used as a measure of scratch adhesion. The average value of adhesion strength at the coating/substrate interface is 87.8 N, at which the NbC coating (thickness of 21.3 mu m) is delaminated from the substrate. The results indicate that the coating exhibits high adhesion strength on the substrate. The deformation behaviour studied by micro-scratch tests demonstrates that cracks propagate along the grain boundaries and that the failure of the coating is caused by the interaction of radial and lateral cracks. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：135 / 142

页数：8

共 35 条

[1] Vanadium carbide coatings on die steel deposited by the thermo-reactive diffusion technique [J].

Aghaie-Khafri, M. ;

Fazalipour, F. .

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 2008, 69 (10) :2465-2470

[2] Using scratch testing to measure the adhesion strength of calcium phosphate coatings applied to poly(carbonate urethane) substrates [J].

Barnes, Dunstan ;

Johnson, Scott ;

Snell, Robert ;

Best, Serena .

JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS, 2012, 6 :128-138

[3] Structure and composition of Nb and NbC layers on graphite [J].

Barzilai, S ;

Weiss, M ;

Frage, N ;

Raveh, A .

SURFACE & COATINGS TECHNOLOGY, 2005, 197 (2-3) :208-214

[4] An investigation of the nanoindentation and nano/micro-tribological behaviour of monolayer, bilayer and trilayer coatings on cemented carbide [J].

Beake, B. D. ;

Ranganathan, N. .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2006, 423 (1-2) :46-51

[5] Influence of experimental factors and film thickness on the. measured critical load in the nanoscratch test [J].

Beake, B. D. ;

Ogwu, A. A. ;

Wagner, T. .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2006, 423 (1-2) :70-73

[6] Optimized scratch adhesion for TiSiN coatings deposited by a combination of DC and RF sputtering [J].

Bushroa, A. R. ;

Masjuki, H. H. ;

Muhamad, M. R. ;

Beake, B. D. .

SURFACE & COATINGS TECHNOLOGY, 2011, 206 (07) :1837-1844

[7] Kinetics of niobium carbide reinforced composite coating produced in situ [J].

Cai, Xiaolong ;

Xu, Yunhua ;

Zhong, Lisheng ;

Zhao, Nana ;

Yan, Yinglin .

VACUUM, 2015, 119 :239-244

[8] High-temperature reactive spark plasma consolidation of TiB2-NbC ceramic composites [J].

Demirskyi, Dmytro ;

Sakka, Yoshio ;

Vasylkiv, Oleg .

CERAMICS INTERNATIONAL, 2015, 41 (09) :10828-10834

[9] Evaluation of vanadium carbide coatings on AISI H13 obtained by thermo-reactive deposition/diffusion technique [J].

Fan, X. S. ;

Yang, Z. G. ;

Zhang, C. ;

Zhang, Y. D. ;

Che, H. Q. .

SURFACE & COATINGS TECHNOLOGY, 2010, 205 (02) :641-646

[10] Wear and corrosion of niobium carbide coated AISI 52100 bearing steel [J].

Fernandes, F. A. P. ;

Gallego, J. ;

Picon, C. A. ;

Tremiliosi Filho, G. ;

Casteletti, L. C. .

SURFACE & COATINGS TECHNOLOGY, 2015, 279 :112-117

← 1 2 3 4 →