scholarly journals Pathways of Dissipation of Frictional Energy under Boundary Lubricated Sliding Wear of Martensitic Materials

Lubricants ◽  
2018 ◽  
Vol 6 (2) ◽  
pp. 34 ◽  
Author(s):  
Priska Stemmer ◽  
Alfons Fischer
Author(s):  
Alessandro Augusto Olimpio Ferreira Vittorino ◽  
Túlio Alves Rodrigues ◽  
Marco Aurélio Freitas Santos Júnior ◽  
Washington Martins da Silva Jr.

2000 ◽  
Vol 366 (1-2) ◽  
pp. 155-163 ◽  
Author(s):  
C.N Panagopoulos ◽  
V.D Papachristos ◽  
L.W Christoffersen

2011 ◽  
Vol 31 (5) ◽  
pp. 877-882 ◽  
Author(s):  
Beatriz Núñez-González ◽  
Angel L. Ortiz ◽  
Fernando Guiberteau ◽  
Nitin P. Padture

2014 ◽  
Vol 77 ◽  
pp. 186-195 ◽  
Author(s):  
Paranjayee Mandal ◽  
Arutiun P. Ehiasarian ◽  
Papken Eh. Hovsepian

Friction ◽  
2020 ◽  
Author(s):  
Jinjuan Cheng ◽  
Mincong Mao ◽  
Xueping Gan ◽  
Qian Lei ◽  
Zhou Li ◽  
...  

Abstract Alloys used as bearings in aircraft landing gear are required to reduce friction and wear as well as improve the load-carrying capability due to the increased aircraft weights. Cu-15Ni-8Sn-0.8Nb alloy is well known for possessing good mechanical and wear properties that satisfy such requirements. In this study, the microstructure, mechanical properties, and grease-lubricated sliding wear behavior of Cu-15Ni-8Sn-0.8Nb alloy with 0.8 wt% Nb are investigated. The nanoscale NbNi3 and NbNi2Sn compounds can strengthen the alloy through the Orowan strengthening mechanism. A Stribeck-like curve is plotted to illustrate the relationship among friction coefficient, normal load, and sliding velocity and to analyze the grease-lubricated mechanism. The wear rate increases with normal load and decreases with sliding velocity, except at 2.58 m/s. A wear mechanism map has been developed to exhibit the dominant wear mechanisms under various friction conditions. When the normal load is 700 N and the sliding velocity is 2.58 m/s, a chemical reaction between the lubricating grease and friction pairs occurs, resulting in the failure of lubricating grease and an increase in wear.


Wear ◽  
2005 ◽  
Vol 259 (1-6) ◽  
pp. 577-589 ◽  
Author(s):  
J.C. Walker ◽  
W.M. Rainforth ◽  
H. Jones

Author(s):  
H. L. Costa ◽  
I. M. Hutchings

In this paper, the effects of some geometric characteristics of surfaces textured by photochemical etching on their lubricated sliding behaviour were analysed. Reciprocating tests with sinusoidal velocity variation against cylindrical counterbodies were used. An estimate of the lubricant film thickness was obtained from capacitance measurements. Values of film capacitance, film thickness and coefficient of friction were computed as a function of sliding velocity, averaged over a large number of consecutive strokes after the running-in period. Patterns composed of circles with different fractions of coverage of the surface were tested for different ratios between the width of the individual pockets and the contact width. All the results were compared with those from a standard polished surface.


2010 ◽  
Vol 97-101 ◽  
pp. 789-792 ◽  
Author(s):  
Guo Ming Cui ◽  
Xing Xia Li ◽  
Jian Min Zeng

Al-10Sn matrix composites reinforced by TiB2 particles were fabricated by Mixed Salt Reaction in situ synthesis process. The oil lubricated sliding wear tests of composites and matrix alloy were conducted on a small thrust ring versus disc wear testing machine at room temperature under different applied loads and the wear surfaces were observed using SEM. The results indicate that the coefficient of friction, friction temperature, and wear weight loss increase with the increase of applied loads, but compared with matrix alloy, the composites exhibit better anti-friction property and higher wear resistance. The analysis of wear surface suggests that light ploughing is predominant for composites and matrix alloy at low loads, and ploughing is still predominant for composites at high loads, but adhesion and delamination are predominant for matrix alloy at high loads


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