Microtextures Induced by Nanosecond Laser on Ni–Co Alloy Coatings

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• 作者：He Haidong ; Yang Haifeng ; Zhou Longpeng ; Chen Tianchi
• 关键词：microtextures ; nanosecond laser for inducing microtextures ; Ni–Co alloy ; electrodeposition
• 刊名：Journal of Russian Laser Research
• 出版年：2015
• 出版时间：May 2015
• 年：2015
• 卷：36
• 期：3
• 页码：292-299
• 全文大小：1,600 KB
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• 作者单位：He Haidong (1)
  Yang Haifeng (2)
  Zhou Longpeng (2)
  Chen Tianchi (2)
  
  1. College of Mechanical & Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, China
  2. College of Mechanical & Electrical Engineering, China University of Mining and Technology, XuZhou, 221116, China
  
• 刊物类别：Physics and Astronomy
• 刊物主题：Physics
  Applied Optics, Optoelectronics and Optical Devices
  Laser Technology and Physics and Photonics
  Microwaves, RF and Optical Engineering
  Russian Library of Science
  
• 出版者：Springer New York
• ISSN：1573-8760

文摘

Ni–Co alloys have a wide range of applications in various fields owning to their excellent physical, chemical, and mechanical properties. In this paper, we prepare Ni–Co alloy coatings on 316L stain steel surfaces by electroplating. We present a novel approach utilizing a nanosecond laser to induce microtextures on Ni–Co alloy coatings. We study experimentally the effects of laser power and scanning rate on the surface morphologies of Ni–Co alloy coatings. The results indicate that the shape and size of induced microtextures can be controlled by the laser power and scanning rate. The size of grains increases with increase in the work current of the laser (WCL) at a certain scanning rate. With the WCL constant, the size of grains decreases with increase in scanning rate while their average height increases. It is a simple and easily-controlled method for the fabrication of microstructures on Ni–Co alloy coatings, which has promising applications in investigations of the properties of microtextured surfaces, such as friction, adhesion, and wetting.