Sliding wear and fretting wear of diamondlike carbon-based, functionally graded nanocomposite coatings

Wear ◽  
1999 ◽  
Vol 225-229 ◽  
pp. 65-73 ◽  
Author(s):  
K Miyoshi ◽  
B Pohlchuck ◽  
Kenneth W Street ◽  
J.S Zabinski ◽  
J.H Sanders ◽  
...  
Keyword(s):  
Sliding Wear ◽  
Functionally Graded ◽  
Fretting Wear ◽  
Nanocomposite Coatings ◽  
Diamondlike Carbon ◽  
Carbon Based

scholarly journals Toughening of nanocomposite hard coatings

2020 ◽  
Vol 59 (1) ◽  
pp. 553-585
Author(s):  
Suman Kumari Mishra
Keyword(s):  
Coefficient Of Friction ◽  
Hard Coatings ◽  
Nanocomposite Coatings ◽  
Similar System ◽  
Future Directions ◽  
Research Technology ◽  
High Toughness ◽  
Contact Loads ◽  
Component Phase ◽  
Carbon Based

AbstractFor engineering applications, hardness must be complimented with high toughness for applications where high contact loads are there. A good combination of hardness, toughness and low coefficient of friction can be achieved, by suitable tailoring of microstructures of coating in hard nanocomposite coatings. Tribologocal applications require hard coatings with tailored functionalities for different applications; hard nanocomposite coatings are potential materials for such applications. Ti and amorphous carbon based systems have shown more promising material. The present review discusses the nanocomposite hard coatings, mechanism of enhancement of toughness, multilayer hard nanocomposite coatings. Here, mainly Ti and Si based nanocomposite has been discussed as carbon based reviews are available in plenty in literature and well documented. Ti-B-N, Ti-Si-B-C, Ti-Si-B-C-N, Si-C-N, Ti-Al-N, Ti-Al-Si-N, Al-Si-N, Ti-Cr-Al-N, Zr-Si-N and some other similar system nanocomposite hard coatings are important where the gradual and intelligent additions of different elements in hard single component phase provides the combination of hardness, toughness and low coefficient of friction. Some of these systems are discussed. In the end, the future directions of research, Technology„ which are required to achieve tough nanocomposite hard coatings for actual applications are also highlighted.

Parametric Study of Dry Sliding Wear Behaviour of Functionally Graded Al LM25/Si3N4 Composite by Response Surface Methodology

2015 ◽  
Vol 24 (6) ◽  
pp. 096369351502400 ◽  
Author(s):  
N. Radhika ◽  
R. Raghu
Keyword(s):  
Response Surface Methodology ◽  
Wear Rate ◽  
Response Surface ◽  
Outer Surface ◽  
Sliding Wear ◽  
Centrifugal Casting ◽  
Functionally Graded ◽  
Wear Behaviour ◽  
Inner Surface ◽  
Sliding Distance

Functionally graded aluminium LM25/silicon nitride composite was produced through stir casting followed by centrifugal casting and obtained a hollow cylindrical cast component with dimensions of 150 × 150 × 20 mm. The microstructural examination and the hardness test were carried out on the outer (1 mm) and inner surface (17 mm) as the function of radial distance from the outer periphery. The outer surface was observed with particle enriched region compared to inner surface and exhibited higher hardness. Hence the outer surface of the functionally graded composite was only further subjected to sliding wear test in pin-on-disc tribometer. The Central Composite Design in Response Surface Methodology was used to design the experiments for the selected parameters such as load (15–45 N), velocity (0.5–2.5 m/s) and sliding distance (500–2000 m). Regression test and Analysis of Variance were conducted to check the adequacy of the constructed model. The surface plots for wear rate showed that wear rate increased with increase in load and non-linearly varied with increase in velocity and sliding distance. Scanning Electron Microscopy analysis was conducted on the worn-out surfaces and observed mild to severe wear transition on increase of load.

Unipolar Resistive Switching Properties of Diamondlike Carbon-Based RRAM Devices

2011 ◽  
Vol 32 (6) ◽  
pp. 803-805 ◽  
Author(s):  
Di Fu ◽  
Dan Xie ◽  
Tingting Feng ◽  
Chenhui Zhang ◽  
Jiebin Niu ◽  
...  
Keyword(s):  
Resistive Switching ◽  
Diamondlike Carbon ◽  
Unipolar Resistive Switching ◽  
Carbon Based

Influence of glow plasma Co-based alloying layer on sliding wear and fretting wear resistance of titanium alloy

2018 ◽  
Vol 125 ◽  
pp. 85-94 ◽  
Author(s):  
Amin Ma ◽  
Daoxin Liu ◽  
Changbin Tang ◽  
Xiaohua Zhang ◽  
Chengsong Liu
Keyword(s):  
Wear Resistance ◽  
Titanium Alloy ◽  
Sliding Wear ◽  
Fretting Wear ◽  
Glow Plasma

Fabrication of In Situ TiC Reinforement Ti Matirx Wear-Resistant and its Wearing Performance at 500°C

2011 ◽  
Vol 189-193 ◽  
pp. 3731-3735 ◽  
Author(s):  
Lan Yun Qin ◽  
Wei Wang ◽  
Guang Yang
Keyword(s):  
Sliding Wear ◽  
Functionally Graded ◽  
Dry Sliding Wear ◽  
Titanium Matrix ◽  
Wear Properties ◽  
Graded Materials ◽  
Gradient Distribution ◽  
Deposition Direction ◽  
In Situ Tic

TiC reinforced titanium matrix functionally graded materials （FGM） has been produced by processes of laser metal deposition through changing the powder feed rate of Ti and Cr3C2 powder. The OM, SEM, EDS methods were used to analyze the components and microstructure of the coatings. Microhardness and wearing resistance at 500°Ctemperature of the FGM coating were examined by microhardness tester and wear tester respectively. The results show that FGM coating reinforced by in-situ TiC apparently improved hardness of Ti alloy; the microhardness can reach HV1100, and present gradient distribution along deposition direction. Dry sliding wear properties of these FGM coatings have been compared with substrate materials wearing. The observed wearing mechanisms are summarized and related to detailed microstructural observations. The results show the wear resistance of the coating can be improved by 2.8 times.

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