...) in the samples prepared by reusing the recycled powder is identified. Under the wear tests, abrasive particles stick (adhesion due to softness) between the contact interfaces increase the wear rate. However, the wear mechanism of the fresh powder is controlled by the tribo-film formation, as explained...

... temperatures of the specimen before and after the wear test. The surfaces of the specimen were first polished with sand paper of grit 180, 240, 320, 600, 800, 1000, and 1200 successively, followed by two polishing stages of 3  μ m and 0.05  μ m, respectively. This enables us to access the porosity...

...Girish R. Desale; Bhupendra K. Gandhi; S. C. Jain Material loss due to erosion is a serious problem associated with the flow of solid-liquid mixtures. In the present work, erosion wear tests have been carried out in a slurry pot tester for seven different ductile type materials namely aluminum...

..., the friction coefficient measured by SRV test and wear scar measured by four-ball wear test are confirmed to be 0.27 and 1.03 mm. On the other hand, in case of modified MR fluid, friction coefficient is 0.15, and wear scar is 0.54 mm. Through these test results, it is indicated that modified MR fluid, which...

... 21 07 2011 cooling copper heat exchangers heat transfer lubrication mechanical contact microchannel flow sliding friction steel wear wear testing bearing design and technology friction sliding tribological systems In addition to providing fluid film lubrication...

...R. Aliasgarian; H. M. Ghasemi; M. Abedini Effects of heat treatments and applied loads on the tribological behavior of Ti-56.5 wt. % Ni and Ti-57.5 wt. % Ni alloys were investigated. Wear tests were performed on a pin-on-disk tribometer under normal loads of 20 N and 60 N at a sliding speed of 0.3...

... microscopy steel surface morphology thermal analysis thermal stability wear wear resistance wear testing X-ray photoelectron spectra borate ester synthesis lubricating additive tribological properties Along with increased environmental concern for lubricating oil products...

... Hertzian theory elliptical contact contact testing wear testing substitute contact Hertz’s theory of elastic contact was originally introduced in 1882 ( 1 ). Johnson ( 2 ) noted that the theory met with early appreciation and has “stood the test of time.” Notwithstanding myriad pertinent...

... unidirectional in the Al matrix. In addition, NiTi/Al6061 composite with 5 wt % SiC particulates and monolithic Al6061 and Al6061 with 5 wt % SiC particulates were processed in similar conditions. The wear tests were performed using a reciprocating tribometer in ball-on-flat configuration where the counterbody...

... morphology features revealed that the predominant erosion mechanism was fatigue failure, irrespective of the temperature. 10 12 2009 15 06 2010 10 09 2010 10 09 2010 aluminium fatigue particle size scanning electron microscopy wear wear testing Cavitation is defined...

... chosen, for the pump elements, slurry, and transport conditions, will provide economic transport with minimal wear. Testing is the most reliable method for acquiring valid data. The two issues that need to be solved while planning the testing process are the choice of valid similarity criteria (test...

.... The slurry whirling arm erosion tester seems to be promising for simulating the slurry process in real cases. 18 12 2008 02 03 2010 26 04 2010 26 04 2010 impact (mechanical) wear testing slurry erosion erodent-target dynamics painting erosion patterns particles rebound...

... graphite and short carbon fibers were investigated. Friction and wear tests were conducted using a pin-on-disk machine under dry sliding conditions. The loads (contact pressure) and sliding velocities have been varied from 10 N to 50 N (contact pressure of 0.12–0.60 MPa) and 0.3 m/s to 1.2 m/s...

... 06 2008 06 08 2008 carbon steel elongation emulsions scanning electron microscopy water wear wear testing cavitation erosion erosion particles particle morphology numerical characterization oil-in-water (o∕w) emulsion Cavitation erosion is one of the major...

... nanotechnology turbines wear testing zinc compounds Mn 0.78 Zn 0.22 Fe 2 O 4 magnetic fluid lubrication additive tribology When nanometer-sized particles are mixed with the lubricating oil, the nanometer particles can improve the lubricating oil’s abilities of extreme pressure, antiwear...

... also detected in the wear debris from 800°C samples. Fe 2 O 3 was formed during the wear tests of 875 and 950°C samples. CrB 2 was also found in all debris samples because of the reaction between the chrome steel ball (the counter face partner) and Fe 2 B...

... concentration were also evaluated experimentally. 08 06 2005 15 02 2006 12 09 2005 16 09 2005 lubricating oils vegetable oils wear resistance mechanical engineering computing wear testing coconut oil base oil tribological properties quantum chemical calculations four...

... 24, 2003; revised manuscript received January 15, 2004. Associate Editor: M. Fillon. 24 June 2003 15 January 2004 13 06 2005 antimony alloys lead alloys metallic thin films polymer films machine bearings wear resistant coatings liquid films hydrodynamics wear testing...

...). To better quantify the tribologic mechanisms of this cross-shear wear, the MAX-Shear wear-testing system was developed to evaluate candidate biomaterials under controlled conditions of cross-shear wear. Method of approach: A computer controlled traveling x-y stage under a 3 degree-of-freedom statically...

... lubrication lubricating oils friction wear wear testing scanning electron microscopy X-ray chemical analysis Fourier transform spectra infrared spectra wetting surface morphology protective coatings Lubricated Contact Surface Analysis POM PTFE Friction Wear Understanding...