Results 41 to 50 of about 919,931 (328)

Study on the Biotribological Properties of Ti6Al7Nb and Ultra High Density Molecular Weight Polyethylene at Different Lubricant Temperature

open access: yesMedžiagotyra, 2021
Higher frictional heat will be produced during the service process of artificial hip joint prosthesis in vivo than natural joint, which would cause the rise of the temperature of synovial fluid and the change of the wear resistance of prosthetic ...
Songquan WANG   +5 more
doaj   +1 more source

Abrasive wear behavior of PTFE for seal applications under abrasive-atmosphere sliding condition

open access: yesFriction, 2019
Abrasive wear is a common failure phenomenon that often limits the service life of sealing elements. Evaluation and comparison of the abrasion resistance of polytetrafluoroethylene (PTFE) were conducted using Al2O3 particles with sizes in the range 5 to ...
Mingxue Shen   +4 more
doaj   +1 more source

Microstructure and tribological behaviors of diffusion bonded powder sintered Cu–Sn based alloys

open access: yesMaterials Research Express, 2021
Owing to good self-lubricating performance, tin bronze is widely used in industrial fields. As tin bronze parts manufactured by powder metallurgy, their tribological performances are influenced by raw powder.
Zhenyu Li   +8 more
doaj   +1 more source

Comparison of shot peening and nitriding surface treatments under complex fretting loadings [PDF]

open access: yes, 2006
Considered as a plague for numerous industrial assemblies, fretting associated with small oscillatory displacements is encountered in all quasi-static contacts submitted to vibrations.
Fouvry, S.   +2 more
core   +2 more sources

Investigation of the Tribofilm Formation of HiPIMS Sputtered MoSx Thin Films in Different Environments by Raman Scattering

open access: yesLubricants, 2019
Understanding the generation of third body particles and their contribution to the formation of tribofilms of MoSx thin films is still challenging due to a large number of influencing factors.
Wolfgang Tillmann   +7 more
doaj   +1 more source

Wear Dry Behavior of the Al-6061-Al2O3 Composite Synthesized by Mechanical Alloying

open access: yesMetals, 2021
The present research deals with the comparative wear behavior of a mechanically milled Al-6061 alloy and the same alloy reinforced with 5 wt.% of Al2O3 nanoparticles (Al-6061-Al2O3) under different dry sliding conditions.
Víctor Hugo Mercado-Lemus   +9 more
doaj   +1 more source

Off the record?: Arrestee concerns about the manipulation, modification, and misrepresentation of police body-worn camera footage [PDF]

open access: yes, 2019
Police body-worn cameras (BWC) have become the latest technological device introduced to policing on a wave of panacean promises. Recent research has reported the perspectives of police officers, police management, and the general public, but there have ...
Lee, M., Taylor, E.
core   +1 more source

The dependence of wear rate on wear scar size in fretting; the role of debris (third body) expulsion from the contact

open access: yesWear, 2019
The paper ‘The third-body approach: a mechanical view of wear’ by Maurice Godet (Wear, 100 (1984), pp 437–452) was perhaps the first to articulate clearly the key role of the rate of debris expulsion from a fretting contact in controlling the overall ...
T. Zhu, P. Shipway, Wei Sun
semanticscholar   +1 more source

AAA+ protein unfoldases—the Moirai of the proteome

open access: yesFEBS Letters, EarlyView.
AAA+ unfoldases are essential molecular motors that power protein degradation and disaggregation. This review integrates recent cryo‐electron microscopy (cryo‐EM) structures and single‐molecule biophysical data to reconcile competing models of substrate translocation.
Stavros Azinas, Marta Carroni
wiley   +1 more source

Wear Behavior and Friction Mechanism of Titanium–Cerium Alloys: Influence of CeO2 Precipitate

open access: yesMetals
This work investigated the effect of cerium (Ce) addition on the wear behavior of commercially pure titanium (CP-Ti) by varying the Ce content to 0.8, 1.4, and 2.0 wt.%.
Sohee Yun   +6 more
doaj   +1 more source

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