Open AccessCorrosion and tribological properties of TiAlCN/TiAlN/TiAlcomposite system deposited by magneticfliter cathode vacuum arctechnique
Author(s) -
Shunian Chen,
Bin Liao,
Lin Chen,
Zhiqiang Zhang,
Yongqing Shen,
Hao-Qi Wang,
Pan Pang,
Wu Jiong Xia,
Qingsong Hua,
Guangyu He
Publication year - 2020
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.69.20200012
Subject(s) - materials science , amorphous solid , electrochemistry , x ray photoelectron spectroscopy , coating , vacuum arc , tribology , corrosion , metallurgy , cathode , amorphous carbon , nanocomposite , nuclear chemistry , composite material , chemical engineering , crystallography , electrode , chemistry , engineering
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, E corr increased by 5.6 times to 0.271 V, I corr decreased by 1/52 to 8.092 ×10 –9 A·cm –2 . 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 –5 mm 3 ·N –1 ·m –1 .