Author:
Chen Shu-Nian,Liao Bin,Chen Lin,Zhang Zhi-Qiang,Shen Yong-Qing,Wang Hao-Qi,Pang Pan,Wu Xian-Ying,Hua Qing-Song,He Guang-Yu, , ,
Abstract
The experiment is based on novel magnetic filtered cathodic vacuum arc (FCVA) technology, the effects of the structure and C contents of TiAlCN/TiAlN/TiAl composite coating on anticorrosion and wear resistance were studied. The macro/micro properties of the coatings were systematically characterized by SEM, XRD, XPS, electrochemical tests and friction equipment. The results show that, with the increase of C content,the form of C element in the coatings transforms from the TiAlCN solid solution to the coexistence of crystallized TiAlCN/amorphous carbon. The TiAlCN/TiAlN/TiAl coating with TiAlCNcrystallized/amorphous carbon nanocomposite structure demonstrated excellent performanceby combining the advantages of each layer, which the hardness reaches an ultrahigh leveland the amorphous carbonwith excellent self-lubricating effect exists in the coating structure. In 3.5% NaCl electrochemical corrosion test, <i>E</i><sub>corr</sub> increased by 5.6 times to 0.271 V, <i>I</i><sub>corr</sub> decreased by 1/52 to 8.092 ×10<sup>–9</sup> A·cm<sup>–2</sup>. During the dry sliding, friction coefficient decreased by 1/3 to 0.43, and wear rate decreased by 1/1.4 to 1.13×10<sup>–5</sup> mm<sup>3</sup>·N<sup>–1</sup>·m<sup>–1</sup>.
Publisher
Acta Physica Sinica, Chinese Physical Society and Institute of Physics, Chinese Academy of Sciences
Subject
General Physics and Astronomy
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