Research on Microstructure and Tribological Properties of Cr-Based Hard Coatings

2013 ◽  
Vol 811 ◽  
pp. 126-130
Author(s):  
Bai Jun Shi ◽  
Yuan Ping Peng ◽  
Si Chi Wu ◽  
Hang Li
Keyword(s):  
Tribological Properties ◽  
Steel Substrate ◽  
Optical Microscope ◽  
Hard Coatings ◽  
Closed Field ◽  
Mechanical And Tribological Properties ◽  
Unbalanced Magnetron ◽  
Magnetron Sputter ◽  
Better Than ◽  
Ball On Disc

In this paper, three kinds of Cr-based hard coatings have been studied for its structural, mechanical and tribological properties at room temperature. By the technology of closed field unbalanced magnetron sputter ion plating (CFUMSIP), CrN CrAlN and CrTiAlN hard coatings were deposited onto DC53 cold die steel and silicon (100) substrate. The coatings were characterized by means of field emission scanning electron microscopy (FESEM), X-ray diffractometer (XRD), microhardness tester, optical microscope and ball-on-disc tribometer, in order to check their structural, as well as to determine the mechanical and tribological properties. The experimental results showed that the CrTiAlN coating performed better than the CrN coating and the CrAlN coating in terms of mechanical and tribological properties. The wear resistances of CrN, CrAlN and CrTiAlN coatings have been significantly improved compared with DC53 steel substrate.

Influence of CrB2 target current on the microstructure, mechanical and tribological properties of Cr–B–C–N coatings in water

RSC Advances ◽  
2016 ◽  
Vol 6 (53) ◽  
pp. 47698-47711 ◽  
Author(s):  
Qiang Ma ◽  
Fei Zhou ◽  
Qianzhi Wang ◽  
Zhiwei Wu ◽  
Kangmin Chen ◽  
...  
Keyword(s):  
Magnetron Sputtering ◽  
Tribological Properties ◽  
Stainless Steels ◽  
Closed Field ◽  
Mechanical And Tribological Properties ◽  
Unbalanced Magnetron Sputtering ◽  
Unbalanced Magnetron

Cr–B–C–N coatings with different boron contents (24.6–27.2 at%) were deposited on Si(100) wafers and 316L stainless steels by using closed-field unbalanced magnetron sputtering via adjusting the CrB2 target current.

Study on Microstructure and Tribological Properties of Graphite-Like Carbon Films

2014 ◽  
Vol 852 ◽  
pp. 309-313
Author(s):  
Bai Jun Shi ◽  
Si Chi Wu ◽  
Yuan Ping Peng ◽  
Shu Hui Liao
Keyword(s):  
Tribological Properties ◽  
Steel Substrate ◽  
Energy Dispersive Spectrometer ◽  
Carbon Films ◽  
Low Friction ◽  
Columnar Crystal ◽  
Unbalanced Magnetron Sputtering ◽  
Unbalanced Magnetron ◽  
Low Wear ◽  
Ball On Disc

Graphite-like carbon films were deposited on DC53 steel substrate by unbalanced magnetron sputtering. The microstructures of the resultant films were investigated by Raman spectroscopy, scanning electron microscope (SEM), energy dispersive spectrometer (EDS) and X-ray diffractometer (XRD), respectively. Ball-on-disc tribometer was employed to analyze the tribological properties of the film. The results show that the films were dominated by sp2 sites. The surfaces are uniform and dense, the sectional morphology of the films present dense columnar crystal. The films have superior tribological properties under different loads, including low friction coefficient (0.18-0.33) and low wear rate (2.53×10-17m3/(Nm)- 8.47×10-17m3/(Nm)).

Synthesis and Characterization of CrXN Nano-Multilayer Coatings

2008 ◽  
Vol 373-374 ◽  
pp. 126-129
Author(s):  
H.Q. Li ◽  
X.Y. Li ◽  
Hai Lin Sun ◽  
Dennis Teer ◽  
Han Shan Dong
Keyword(s):  
Synthesis And Characterization ◽  
Multilayer Coatings ◽  
Closed Field ◽  
Wear Properties ◽  
Ion Plating ◽  
Unbalanced Magnetron ◽  
Magnetron Sputter ◽  
Crn Coatings ◽  
Wear Tests

Three types of nano-multilayer coatings, CrSiN, CrAlN and CrMoN, with different Si, Al and Mo contents were deposited on M42 substrates using a closed field unbalanced magnetron sputter ion plating (CFUMSIP) technique. Systematic characterization on the chemical composition, microstructure, hardness and wear properties of these multilayer coatings has been investigated using GDOES, low angle XRD, SEM, TEM, nanoindentation and wear tests. Experimental results revealed that all these three types of Cr, XN ternary coatings (X=Al, Si and Mo) are nano-multilayer structured. The CrAlN multilayer coatings showed the highest hardness and oxidation resistance among these three multilayer coatings. The CrMoN multilayer coatings exhibited the lowest friction coefficient although no appreciable improvements in wear resistance were observed as compared with the optimized CrN coatings.

scholarly journals Surface Free Energy of Alloy Nitride Coatings Deposited Using Closed Field Unbalanced Magnetron Sputter Ion Plating

2006 ◽  
Vol 47 (10) ◽  
pp. 2533-2539 ◽  
Author(s):  
Chen-Cheng Sun ◽  
Shih-Chin Lee ◽  
Wen-Chi Hwang ◽  
Jenn-Shyong Hwang ◽  
I-Tseng Tang ◽  
...  
Keyword(s):  
Free Energy ◽  
Surface Free Energy ◽  
Closed Field ◽  
Ion Plating ◽  
Unbalanced Magnetron ◽  
Nitride Coatings ◽  
Magnetron Sputter

Correlating high temperature mechanical and tribological properties of CrAlN and CrAlSiN hard coatings

2019 ◽  
Vol 372 ◽  
pp. 361-368 ◽  
Author(s):  
Aljaž Drnovšek ◽  
Marisa Rebelo de Figueiredo ◽  
Hi Vo ◽  
Ao Xia ◽  
Shraddha J. Vachhani ◽  
...  
Keyword(s):  
High Temperature ◽  
Tribological Properties ◽  
Hard Coatings ◽  
Mechanical And Tribological Properties
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