Comparative Studies on Microstructure and Mechanical Properties of CrN, Cr-Mo-N and Cr-Si-N Coatings

2008 ◽  
Vol 569 ◽  
pp. 101-104 ◽  
Author(s):  
Ji Hwan Yun ◽  
Sung Kyu Ahn ◽  
Kwang Ho Kim
Keyword(s):  
Mechanical Properties ◽  
Comparative Studies ◽  
Wear Behavior ◽  
Microstructural Change ◽  
Maximum Hardness ◽  
Ion Plating ◽  
Microstructure And Mechanical Properties ◽  
Si Content ◽  
Hardness Values ◽  
Crn Coatings

CrN-based multi-component coatings were deposited by a hybrid coating system combining the arc ion plating (AIP) and sputtering technique. In this work, comparative studies on microstructure and mechanical properties of microhardness and wear behavior among CrN, Cr-Mo- N, Cr-Si-N coatings were systematically conducted. Adding Mo and Si atoms into CrN coatings had important effects on microstructural change and mechanical properties of CrN coatings. The maximum hardness values of Cr-Mo-N and Cr-Si-N coatings were the same value of 34GPa, These values were much enhanced compared with 18GPa of CrN coating. The average friction coefficient of CrN-based coatings decreased to 0.37 and 0.2 with the incorporation of Mo and Si content

Microstructure and Mechanical Properties of Cr-C-N, Cr-Si-N and Cr-Si-C-N Coatings by a Hybrid Coating System

2007 ◽  
Vol 336-338 ◽  
pp. 2224-2227 ◽  
Author(s):  
Chul Sik Jang ◽  
Young Rae Cho ◽  
Myung Chang Kang ◽  
Won Sub Chung ◽  
Kwang Ho Kim
Keyword(s):  
Mechanical Properties ◽  
Friction Coefficient ◽  
Carbon Content ◽  
Comparative Studies ◽  
Microstructural Change ◽  
Hybrid Coating ◽  
Coating System ◽  
Ion Plating ◽  
Microstructure And Mechanical Properties ◽  
Crn Coatings

CrN-based multi-component coatings were deposited by a hybrid coating system combining the arc ion plating (AIP) and sputtering technique. In this work, comparative studies on microstructure and mechanical properties of microhardness and wear behaviors among Cr-C-N, Cr-Si-N, and Cr-Si-C-N coatings were systematically conducted. Adding carbon and silicon atoms into CrN coatings had large effects on microstructural change and mechanical properties of CrN coatings. The hardness value of Cr-Si-C-N coatings showed about 44 GPa, while those of Cr-Si-N and Cr-C-N coatings were 34 and 23 GPa, respectively. The average friction coefficient of CrN-based coatings decreased from 0.65 to 0.4 with the incorporation of silicon and carbon content.

Influence of Si content on the microstructure and mechanical properties of silicon stainless steel

2021 ◽  
pp. 142141
Author(s):  
Prince Setia ◽  
T. Venkateswaran ◽  
K. Thomas Tharian ◽  
Jayant Jain ◽  
Sudhanshu S. Singh ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Stainless Steel ◽  
Microstructure And Mechanical Properties ◽  
Si Content

The effect of substrate bias on the characteristics of CrN coatings deposited by DC-superimposed HiPIMS system

2017 ◽  
Vol 31 (16-19) ◽  
pp. 1744032 ◽  
Author(s):  
X. Zuo ◽  
F. Xia ◽  
D. Zhang ◽  
P. L. Ke ◽  
Q. M. Wang ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Bias Voltage ◽  
Indentation Test ◽  
Grain Structure ◽  
Substrate Bias ◽  
Cross Sectional ◽  
Microstructure And Mechanical Properties ◽  
Columnar Grain ◽  
Influence Of Substrate ◽  
Crn Coatings

Chromium nitride coatings were prepared by reactive DC-superimposed high-power-impulse magnetron sputtering (HiPIMS) system. The influence of substrate bias on the microstructure and mechanical properties of CrN coatings was investigated. XRD and cross-sectional SEM were utilized to characterize the film structures. Mechanical properties were characterized by nanoindentation and Vickers indentation test. The results revealed that the microstructure and mechanical properties of CrN coatings were affected by bias voltage. The CrN coatings exhibited dense and fine columnar grain structure with the hardness of about 18.7 GPa. The fracture toughness of CrN coatings was around 3.16 MPa ⋅ m[Formula: see text]. However, further increase of the bias voltage from −250 V to −300 V led to the degradation of coating properties.

Effect of Si content on the microstructure and mechanical properties of Mo–Al–Si–N coatings

Vacuum ◽  
2012 ◽  
Vol 86 (12) ◽  
pp. 2010-2013 ◽  
Author(s):  
J.F. Yang ◽  
B. Prakash ◽  
Y. Jiang ◽  
X.P. Wang ◽  
Q.F. Fang
Keyword(s):  
Mechanical Properties ◽  
Microstructure And Mechanical Properties ◽  
Si Content

Effect of Heat Treatment on Microstructure and Mechanical Properties in ZK60 Alloy Sheet

2007 ◽  
Vol 567-568 ◽  
pp. 361-364 ◽  
Author(s):  
Suk Bong Kang ◽  
Jae Hyung Cho ◽  
Hyoung Wook Kim ◽  
Y.M Jin
Keyword(s):  
Mechanical Properties ◽  
Heat Treatment ◽  
Solution Treatment ◽  
Aging Treatment ◽  
Growth Direction ◽  
Warm Rolling ◽  
Alloy Sheet ◽  
Microstructure And Mechanical Properties ◽  
Zk60 Alloy ◽  
Hardness Values

The sheet of ZK60 alloy with a thickness of 1mm was prepared from a casting ingot followed by homogenization and warm-rolling. Variations in microstructure and mechanical properties of ZK60 alloy sheets were investigated during T6 treatment. Especially artificial aging after solution heat treatment affected both precipitates distribution and mechanical properties with aging treatment. Variations of mechanical properties were related to precipitates, i.e. rod-shaped ( 1 β ′ ) or disc shaped ( 2 β ′ ) particles. Around the peak of hardness values, regularly distributed rod-shaped ( 1 β ′ ) precipitates were found. The rod-shaped ( 1 β ′ ) precipitates were oriented with a growth direction of [0001]. When over-aged, rod-shaped ( 1 β ′ ) precipitates were expected to decrease and the density of disc-shaped ( 2 β ′ ) precipitates to change. The rod-shaped ( 1 β ′ ) precipitates mainly consist of {Mg, Zn}, while disc-shaped ( 2 β ′ ) precipitates, {Mg, Zn, Zr} or {Mg, Zn}. In this study the optimum T6 treatment was determined as solution treatment at 430 °C for 6 hours and subsequently aging treatment at 175 °C for 18 hours. At this T6 condition the tensile strength, yield strength and elongation are 321MPa, 280MPa and 16%, respectively.

scholarly journals Effect of Pulsing Configuration and Magnetic Balance Degree on Mechanical Properties of CrN Coatings Deposited by Bipolar-HiPIMS onto Floating Substrate

Coatings ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 1526
Author(s):  
Vasile Tiron ◽  
Mihai Alexandru Ciolan ◽  
Georgiana Bulai ◽  
Daniel Cristea ◽  
Ioana-Laura Velicu
Keyword(s):  
Mechanical Properties ◽  
Xrd Analysis ◽  
Type I ◽  
Ion Energy ◽  
Insulating Films ◽  
First Case ◽  
Unbalanced Magnetron ◽  
Hardness Values ◽  
Crn Coatings ◽  
Magnetic Balance

Despite its great potential for thin films deposition and technological applications, the HiPIMS technology has its own limitations including the control of ion energy and flux towards the substrate when coping with the deposition of electrical insulating films and/or the deposition onto insulating/electrically grounded substrates. The bipolar-HiPIMS has been recently developed as a strategy to accelerate the plasma ions towards a growing film maintained at ground potential. In this work, the benefits of bipolar-HiPIMS deposition onto floating or nonconductive substrates are explored. The effect of bipolar-HIPIMS pulsing configuration, magnetic balance-unbalance degree, and substrate’s condition on plasma characteristics, microstructure evolution, and mechanical properties of CrN coatings was investigated. During the deposition with a balanced magnetron configuration, a significant ion bombardment effect was detected when short negative pulses and relative long positive pulses were used. XRD analysis and AFM observations revealed significant microstructural changes by increasing the positive pulse duration, which results in an increase in hardness from 7.3 to 16.2 GPa, during deposition on grounded substrates, and from 4.9 to 9.4 GPa during the deposition on floating substrates. The discrepancies between the hardness values of the films deposited on floating substrates and those of the films deposited on grounded substrates become smaller/larger when a type I/type II unbalanced magnetron configuration is used. Their hardness ratio was found to be 0.887, in the first case, and 0.393, in the second one. Advanced application-tailored coatings can be deposited onto floating substrates by using the bipolar-HiPIMS technology if short negative pulses, relative long positive pulses together with type I unbalanced magnetron are concomitantly used.

Si content dependent microstructure and mechanical properties of CrN/TiSiN nanomultilayered films

2014 ◽  
Vol 610 ◽  
pp. 28-32 ◽  
Author(s):  
Wei Li ◽  
Ping Liu ◽  
Xiaodong Zhu ◽  
Ke Zhang ◽  
Fengcang Ma ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Microstructure And Mechanical Properties ◽  
Si Content
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