scholarly journals Application of the voltammetry of microparticles for characterizing wear debris produced in the sliding wear regimes of steels

2018 ◽  
Vol 1119 ◽  
pp. 012018
Author(s):  
Y Cogollo ◽  
E M Saavedra ◽  
M A Flórez-Suárez ◽  
C C Viáfara ◽  
A M Meléndez
Keyword(s):  
Wear Debris ◽  
Sliding Wear ◽  
Voltammetry Of Microparticles

On the physical nature of tribolayers and wear debris after sliding wear in a superalloy/steel tribosystem at 25 and 300°C

Wear ◽  
2014 ◽  
Vol 317 (1-2) ◽  
pp. 26-38 ◽  
Author(s):  
C. Rynio ◽  
H. Hattendorf ◽  
J. Klöwer ◽  
G. Eggeler
Keyword(s):  
Wear Debris ◽  
Sliding Wear ◽  
Physical Nature

The Application of X-Ray Diffraction Techniques to the Study of Wear

1966 ◽  
Vol 10 ◽  
pp. 311-327 ◽  
Author(s):  
T. F. J. Quinn
Keyword(s):  
Carbon Steel ◽  
Wear Debris ◽  
Sliding Wear ◽  
Medium Carbon Steel ◽  
Partial Support ◽  
X Ray Diffraction ◽  
Unlubricated Wear ◽  
Sliding Speed ◽  
Medium Carbon ◽  
X Ray

AbstractThe relevance of X-ray diffraction techniques to the investigation of the chemical, physical, and crystallographic changes occurring during sliding wear is discussed in relation to existing theories of wear. By-way of illustration, the application of the powder X-ray cylindrical film technique to the unlubricated wear of a low-alloy, medium carbon steel is treated in some detail. The variation of the relative proportions of iron and its oxides in the wear debris with changes in sliding speed is described. It is shown that the results lend partial support to the oxidational hypothesis of the unlubricated wear of steel.

The Effect of Boron Nitride on Tribological Behavior of Mg Matrix Composite at Room and Elevated Temperatures

2019 ◽  
Vol 142 (1) ◽  
Author(s):  
Fatih Aydin ◽  
M. Emre Turan
Keyword(s):  
Boron Nitride ◽  
Wear Debris ◽  
Sliding Wear ◽  
Solid Lubricant ◽  
Elevated Temperatures ◽  
Tribological Behavior ◽  
Wear Behavior ◽  
Thermal Softening ◽  
Dry Sliding Wear ◽  
Worn Surface

Abstract The goal of the study is to examine the dry sliding wear behavior of pure Mg and Mg/nano-boron nitride (BN) composite at elevated temperatures. The wear behavior of the samples was evaluated under loads of 5, 10, and 20 N, at sliding speed of 80, 130, and 180 mm s−1 and at temperatures of 25, 100, and 175 °C. The examination of worn surface, counterface, and wear debris was performed. The results showed that nano-BN particles lead to substantial enhancement of wear resistance for both room and elevated temperatures. Mg/0.25 BN has lower coefficient of friction values due to the presence of BN which act as solid lubricant. The wear mechanisms are thermal softening, melting, oxidation, abrasion, and delamination.

Formation of Cylindrical Sliding-Wear Debris on Silicon in Humid Conditions and Elevated Temperatures

1995 ◽  
Vol 38 (3) ◽  
pp. 721-727 ◽  
Author(s):  
Elmer S. Zanoria ◽  
Steven Danyluk ◽  
Michael J. Mcnallan
Keyword(s):  
Wear Debris ◽  
Sliding Wear ◽  
Elevated Temperatures

The Challenges of Sliding Wear

2005 ◽  
Author(s):  
D. A. Rigney
Keyword(s):  
Molecular Dynamics ◽  
Plastic Deformation ◽  
Wear Debris ◽  
Sliding Wear ◽  
Md Simulations ◽  
Mechanical Mixing ◽  
Wear Model ◽  
Two Fluids ◽  
Continuum Analysis

The production of nanocrystalline wear debris containing components from the worn specimen, from the counterface and from the environment does not support any of the better known wear models or wear equations based on adhesion, delamination, fatigue or oxidation. In this presentation, plastic deformation, mechanical mixing and patterns of flow determined from experiments will be compared with molecular dynamics (MD) simulations and a continuum analysis of two ‘fluids’ shearing in opposite directions. Together, these suggest generic behavior that needs to be included in any realistic sliding wear model.

Phase Transformation and its Effect on Dry Sliding Wear of Electro-Pressure Sintered Cobalt and Cobalt-Base Composites

2007 ◽  
Vol 539-543 ◽  
pp. 820-825 ◽  
Author(s):  
Yong Suk Kim ◽  
Suk Ha Kang ◽  
Tai Woong Kim
Keyword(s):  
Surface Layer ◽  
Cross Sections ◽  
Wear Debris ◽  
Sliding Wear ◽  
Wear Behavior ◽  
Thermal Transformation ◽  
Xrd Analysis ◽  
Dry Sliding Wear ◽  
Dry Sliding ◽  
Fcc Phase

Room-temperature dry sliding wear behavior of hot-pressure sintered monolithic Co, Co- 20 wt.% CuSn and Co-20 wt.% WC composites were investigated. Wear tests of the materials were carried out using a pin-on-disk wear tester at various loads of 10N-100N under a constant sliding speed condition of 0.38m/s against glass (83% SiO2) beads. Sliding distances were varied with a range of 100m-600m. A scanning electron microscopy was used to examine worn surfaces, cross sections, and wear debris. X-ray diffraction (XRD) was utilized to identify phases of the specimen and wear debris. All specimens exhibited low friction coefficients ranging from 0.12 to 0.4. The sintered Co exhibited distinctive wear that was characterized by shallow dug canals on worn surface, a very thin detaching surface layer, and fine debris. Thermal transformation of the Co specimen from ε (hcp) phase to α (fcc) phase occurred during the wear of the Co, which was inferred from XRD analysis of the wear debris. The transformation was suggested to cause the thin detaching surface layer and the fine wear debris of the sintered Co. The wear of the Co-CuSn composite proceeded by shear deformation of the CuSn particles, while WC particles of the Co-WC composite sustained most of the applied load, which resulted in the low wear rate with fine wear debris of the Co-WC composite.

Sign in / Sign up

Export Citation Format

Share Document