Results 41 to 50 of about 16,432 (307)
The skip liner is a primary wearing component that is subjected to direct impacts and friction from coal in the mineshaft hoisting system. In this research, a skip tester was designed to investigate the impact wear characteristics of liner such as the ...
Zixin Yin +3 more
doaj +1 more source
This research work studies the characteristics of wear and wear resistance of composite powder coatings, deposited by supersonic flame jet (HVOF), which contain composite mixtures Ni-Cr-B-Si having different chromium concentrations—9.9%, 13.2%, 14%, 16%,
Mara Kandeva +2 more
doaj +1 more source
This study investigates the effects of milling parameters, including rotational speed, milling duration, and ball‐to‐powder ratio, on TiAl particle size and morphology in an XHV‐equivalent atmosphere. The creation of oxide‐free surfaces enhances the mechanical properties of green bodies.
Jytte Möckelmann +4 more
wiley +1 more source
HEAT TREATMENT OF WEAR RESISTANT STEELS FOR DRILLING RIG PUMPS
The influence of heat treatment different options on wear resistance of steels of trademarks Kh12MFL and 150KhNML applied in manufacturing of mud pumps is reviewed. It is shown that the steel Kh12MFL is superior in wear resistance than the steel 150KhNML
S. M. Nikiforova +4 more
doaj +1 more source
Influence of Test Temperature and Test Frequency on Fatigue Life of Aluminum Alloy EN AW‐2618A
The influence of test temperature and test frequency on the fatigue life of EN AW‐2618A is investigated. High‐cycle fatigue tests are performed at different test temperatures and frequencies on the 1000 h/230°C overaged state. Both test parameters reduce fatigue life due to time‐dependent damage mechanisms.
Ying Han +5 more
wiley +1 more source
Cutting capacity and strength of single grinding grains [PDF]
The results received at research of the cutting ability and durability of single grinding grains are presented in article. In particular influence of such parameters as a form and a corner of orientation of grinding grain was ...
Barsuk, A. V. +2 more
core +1 more source
Do not let thermal drift and instrument artifacts deceive high‐temperature nanoindentation results. We compare classical Oliver–Pharr and automatic image recognition analyses across steels and a Ni alloy to quantify these effects. Accounting for artifacts reveals systematic softening with temperature, while Cr and Ni additions boost resistance ...
Velislava Yonkova +2 more
wiley +1 more source
A comparison of bearing life in new and refurbished railway axle boxes [PDF]
A simple linear dynamical model shows that at normal running speeds of freight wagons, forced oscillations due to periodic track compliance are transferred to the overlying unsprung mass and significantly amplified. Due to these oscillations, a small gap
Broadbridge, P., Wake, G.
core
Graphene nanoplatelet (0.1 wt.%) reinforcement significantly enhances the performance of β Ti‐28Nb‐35.4Zr alloy. Grain refinement, reduced water contact angle, and improved surface characteristics promote osteoblast adhesion and complete surface coverage after 7 days.
Khurram Munir +5 more
wiley +1 more source
Scanning-electron-microscope used in real-time study of friction and wear [PDF]
Small friction and wear apparatus built directly into scanning-electron-microscope provides both dynamic observation and microscopic view of wear process.
Brainard, W. A., Buckley, D. H.
core +1 more source

