首页|Microstructure and Mechanical Properties of TiN/NbN Multilayered Coating

Microstructure and Mechanical Properties of TiN/NbN Multilayered Coating

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In this study, multilayers of TiN/NbN were deposited by d.c. magnetron sputtering on die steel substrates. The structure, morphology and nano-hardness were assessed using X-ray diffraction, atomic force microscopy (AFM), stylus profiler (XP-2 stylus profiler) and nanoindentation, respectively. Wear tests were performed on pin-on-disk configuration and dry sliding conditions, at 5N load by using hardened steel ball. The result shows TiN with highly (111) preferred orientation. On mechanical properties, Young's modulus and hardness values increase for layers number increase. At 64 layers films had the highest nano-hardness, Young's modulus values. The TiN/NbN multilayer films presented changes in its morphology becoming more granulated and density after heating up to 500℃ A significant decrease in friction coefficient has been achieved for TiN/NbN multilayers against steel ball.

TiN/NbN multilayersDC reactive magnetron sputteringfriction coefficient

Chien-Cheng Liu、Kuang-Yi Liu、Huai-Wei Yan、Chia-Li Ma、Jow-Lay Huang

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Department of Mechanical Engineering, Kun Shan University, Tainan, Taiwan

Department of materials science and engineering, National Cheng Kung University, Taiwan

2010

Key engineering materials

Key engineering materials

ISSN:1013-9826
年,卷(期):2010.434/435
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