scholarly journals Effect of substrate bias voltage on the microstructure and tribological properties or CrN coating

2016 ◽  
Vol 40 (1-2) ◽  
pp. 9-15 ◽  
Author(s):  
Khalil Aouadi ◽  
Corinne Nouveau ◽  
Aurélien Besnard ◽  
Brahim Tlili ◽  
Moez Chafra
Keyword(s):  
Bias Voltage ◽  
Tribological Properties ◽  
Substrate Bias ◽  
Substrate Bias Voltage ◽  
Crn Coating

scholarly journals Tribological properties of boron carbonitride coatings sliding against different wood (acerbic, beech, and lauan) balls

2019 ◽  
Vol 28 ◽  
pp. 096369351987573 ◽  
Author(s):  
Zhiwei Wu ◽  
Sihao Li ◽  
Zhaojun Xu ◽  
Qianzhi Wang ◽  
Fei Zhou
Keyword(s):  
Bias Voltage ◽  
Tribological Properties ◽  
Photoelectron Spectroscopy ◽  
Rf Magnetron Sputtering ◽  
Substrate Bias ◽  
Boron Carbonitride ◽  
Friction Behavior ◽  
Substrate Bias Voltage ◽  
Mechanical And Tribological Properties ◽  
C And N

Boron carbonitride (BCN) coatings were prepared using radio frequency (RF) magnetron sputtering via adjusting substrate bias voltage from −50 V to −200 V. The mechanical and tribological properties of the coatings were investigated. The coexistence of B–N, B–C, and N–C bonds was detected in coatings according to X-ray photoelectron spectroscopy analysis, indicating the formation of ternary BCN hybridization. The hardness of BCN coatings increased from 14.4 GPa to 24.3 GPa with an increase of substrate bias voltage, while their adhesion strength on substrate decreased. The friction behavior of BCN coatings sliding against different wood (acerbic, beech, and lauan) balls was examined using a ball-on-disk tribometer. The average friction coefficient fluctuated in a range of 0.74–1.02. The wear track of BCN coating sliding against hardwood (acerbic) presented obvious scratches, which were not noted as sliding against other softwood balls in comparison.

Deposition of CrN Coatings by Filtered Cathodic Vacuum Arc

2008 ◽  
Vol 373-374 ◽  
pp. 130-133 ◽  
Author(s):  
Ji Liang Mo ◽  
Min Hao Zhu ◽  
J. An ◽  
H. Sun ◽  
Yong Xiang Leng ◽  
...  
Keyword(s):  
Partial Pressure ◽  
Bias Voltage ◽  
Vacuum Arc ◽  
Substrate Bias ◽  
Nitrogen Partial Pressure ◽  
Substrate Bias Voltage ◽  
Crn Coating ◽  
Deposition Parameters ◽  
Filtered Cathodic Vacuum Arc ◽  
Crn Coatings

CrN coatings were deposited on cemented carbide substrates by filtered cathodic vacuum arc technique (FCVA). The effect of different deposition parameters: nitrogen partial pressure, substrate-bias voltage and preheating of the substrate, on the structural and mechanical properties of the coating was investigated. X-ray diffraction analysis was used to determine the structure and composition of the coatings. The tribological behaviour and wear properties of the coatings against Si3N4 ball at different normal loads were studied under reciprocating sliding condition. The results showed that a smooth and dense CrN coating with good properties can be obtained provided a pure Cr interlayer was pre-deposited. The optimal deposition parameters were the nitrogen partial pressure of 0.1 Pa, substrate-bias voltage of -100 V. Preheating of the substrate was no good for improving the properties of the coating. The FCVA CrN coating showed high hardness and good wear resistance, which was probably attributed to its smooth surface and dense microstructure. The wear mechanism of the CrN coating was a combination of abrasion and oxidation. However, the coating flaked off at high normal load due to the deficient adhesion strength of the coating to the substrate.

Sign in / Sign up

Export Citation Format

Share Document