Friction, Wear and Deformation of Soft Steels Implanted with Ti and N

1983 ◽  
Vol 27 ◽  
Author(s):  
I.L. Singer ◽  
R.A. Jeffries
Keyword(s):  
Friction And Wear ◽  
Hardened Steel ◽  
Steel Ball ◽  
Depth Profiles ◽  
Lubricated Sliding

ABSTRACTFriction and wear measurements were performed with a hardened steel ball sliding against unhardened steels (AISI 10184 304 and M2) implanted with either N+ or Ti+ or both N+ Ti+ ions. Dry and lubricated sliding studies found that: Ti-implantation reduced friction and thereby delayed wear; N-implantation did not reduce friction but delayed wear by increasing the resistance of the surface to shear; and dual implants of N+ + Ti+ showed effects of both implants. Auger sputter depth profiles found the 1018 and M2 surfaces enriched in implanted N and bulk C. No evidence of N migration could be found in heavily deformed surfaces.

Friction and Wear Behaviors of Steel Ball Against Polyimide-PTFE Composite Under Rolling-Sliding Motion

2021 ◽  
Vol 69 (3) ◽  
Author(s):  
Yuanyuan Jiang ◽  
Lei Chen ◽  
Chen Xiao ◽  
Ningning Zhou ◽  
Tao Qing ◽  
...  
Keyword(s):  
Friction And Wear ◽  
Steel Ball ◽  
Ptfe Composite ◽  
Sliding Motion

MeV Self Ion Beam Induced Amorphisation of Silicon Carbide Surfaces and Its Effect on Their Trdbomechanical Propertdzs

1991 ◽  
Vol 235 ◽  
Author(s):  
D. K. Sood ◽  
V. C. Nath ◽  
Yang Xi
Keyword(s):  
Silicon Carbide ◽  
Raman Scattering ◽  
High Precision ◽  
Friction And Wear ◽  
Ion Beam ◽  
Steel Ball ◽  
Carbon Ions ◽  
Ion Energy ◽  
Number Of Cycles ◽  
Tribomechanical Properties

ABSTRACTAmorphisation of sintered SiC by bombardment with self (C, Si) ions has been studied. Ion doses ranged from 1×1015 to 1×1017 ions/cm2; and ion energy was varied from 0.09 to 5 MeV. Amorphisation was detected by micro-focus Raman scattering. Tribomechanical properties-friction and wear were studied with a high precision pin (steel ball) and disc (implanted) machine. Results show substantial improvements in friction and wear, which persist to a large number of cycles. Tribomechanical properties are shown to correlate with surface amorphisation and carburisation. Carbon ions are found to be much more effective than Si ions (with similar damage distributions) in reducing friction and wear.

Materials characterization and effect of purity and ion implantation on the friction and wear of sublimed fullerene films

1994 ◽  
Vol 9 (11) ◽  
pp. 2823-2838 ◽  
Author(s):  
B.K. Gupta ◽  
Bharat Bhushan ◽  
C. Capp ◽  
J.V. Coe
Keyword(s):  
Fourier Transform ◽  
Elastic Modulus ◽  
Ion Implantation ◽  
Coefficient Of Friction ◽  
Friction And Wear ◽  
Steel Ball ◽  
Scanning Tunneling ◽  
High Dose ◽  
Wear Life ◽  
Plastic Deformation Behavior

In previous studies, sublimed C60-rich fullerene films on silicon, when slid against a 52100 steel ball under dry conditions, have exhibited low coefficient of friction (∼0.12). Films with different purities can be produced by sublimation at different substrate temperatures. In this paper, effects of purity of fullerene films and ion implantation of the films with Ar ions on the friction and wear properties of sublimed fullerene films are reported. C60-rich films (called here films with high purity) exhibit low macroscale friction. An increased amount of C70 and impurities in the fullerene film determined using Raman and Fourier transform infrared (FTIR), increases its coefficient of friction. Microscale friction measurements using friction force microscopy also exhibited similar trends. Low coefficient of friction of sublimed C60-rich films on silicon is probably due to the formation of a tenacious transfer film of C60 molecules on the mating 52100 steel ball surface. Based on scanning tunneling microscopy (STM), transmission electron microscopy (TEM), and high resolution TEM (HRTEM), we found that fullerene films primarily consisted of C60 molecules in a fcc lattice structure. Nanoindenter was used to measure hardness and elastic modulus of the as-deposited films. Ion-implantation with 1 × 1016 Ar+ cm−2 reduced macroscale friction down to about 0.10 from 0.12 with an increase in wear life by a factor of 4; however, doses of 5 × 1016 ions cm−2 gave three times higher friction and poorer wear life; higher doses disintegrated the C60 molecules. Based on STM, TEM, Raman, FTIR, and laser desorption Fourier-transform ion cyclotron resonance mass spectrometer (LD/FT/ICR) studies, we found that the ion implantation with a dose of 1 × 1016 Ar+ cm−2 resulted in smoothening of the fullerene film surface probably by compacting clusters, but without disintegrating the C60 molecules. However, a high dose of 5 × 1016 Ar+ cm−2 damaged the C60 molecules, converting it to an amorphous carbon. Nanoindentation studies show that ion implantation with a dose of 1 × 1016 Ar+ cm−2 resulted in an increase in the hardness from about 1.2 to 4.0 GPa and in elastic modulus from about 70 to 75 GPa and modified the elastic-plastic deformation behavior.

Study on the Friction and Wear Behavior of Grind-Hardened Layer

2010 ◽  
Vol 431-432 ◽  
pp. 385-388 ◽  
Author(s):  
Jian Hua Zhang ◽  
Pei Qi Ge ◽  
Lei Zhang ◽  
Yang Yu ◽  
Hui Li
Keyword(s):  
Friction Coefficient ◽  
Wear Rate ◽  
Wear Debris ◽  
Friction And Wear ◽  
Wear Behavior ◽  
Hardened Layer ◽  
Hardened Steel ◽  
Wear Performance ◽  
Friction And Wear Behavior ◽  
Grind Hardening

The grind-hardening technology utilizes the grinding heat to harden the surface of the workpiece. The friction and wear performance of the grind-hardened layer is one of the important parameters. In this paper, the friction and wear performance of the grind-hardened layer was studied by the friction and wear experiment. The wear rate and the friction coefficient of the grind-hardened steel were studied by comparing with conventional hardened steel and non-hardened steel. The surface worn morphology and the collected wear debris of the grind-hardened steel were observed during the experiment. The wear mechanism of the grind-hardened steel was analyzed under different friction conditions.

Friction and Wear of Lubricated Sliding Surfaces of Coated Vane and Flange in Rotary Compressor with Carbon Dioxide as a Refrigerant

2007 ◽  
Vol 353-358 ◽  
pp. 1785-1788
Author(s):  
Hong Gyu Jeon ◽  
Kyu Sun Lee ◽  
Sung Oug Cho ◽  
Young Ze Lee
Keyword(s):  
Carbon Dioxide ◽  
Friction And Wear ◽  
Hard Coatings ◽  
Rotary Compressor ◽  
Sliding Surfaces ◽  
Natural Refrigerant ◽  
Air Conditioning Systems ◽  
Friction And Wear Characteristics ◽  
Rotary Type ◽  
Lubricated Sliding

Due to the environmental concerns, especially the greenhouse effect and GWP (Global Warming Potential), the carbon dioxide was investigated as an alternative natural refrigerant to replace HFCs (HydroFluoroCarbons) in refrigerator or air conditioning systems. To develop new compressor, especially rotary type, the friction and wear characteristics of sliding surfaces between vane and flange in the rotary compressor were evaluated in this paper. Several hard coatings, such as TiN, CrN and WC/C, were applied on vane surfaces in order to improve the tribological characteristics, and their performances were evaluated experimentally. The vane-on-flange type lubricated sliding tests were performed with a high pressure wear tester using HFC (R410A) and carbon dioxide. From the tests, wear volumes of vane surfaces applied with various coatings were compared each other.

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