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Microstructure and wear properties of YT758/CuZnNi hardfacing materials WANG Xin-hong(王新洪)1, ZHANG Min(张 敏)2, ZOU Zeng-da(邹增大)1, QU Shi-yao(曲仕尧)1 (1. School of Materials Science... cemented by Cu-based alloy was deposited on the substrate to produce milling tools by oxy-acetylene flame process. Microstructure and wear properties of the hardfacing layers were analyzed by scanning......
done on graphite particle reinforced metal matrix composites which exhibit low friction, low wear rate, and excellent anti-seizing properties. In this viewpoint, an attempt is made to prepare AZ91... between friction coefficient and load It can be obtained that the wear rate of the specimens shows different wear behaviors, indicating that different wear mechanisms operate within sliding process......
Characterization and wear properties of nanoscaled TiN/TaN multilayer coatings AN Jian(安 健)1, ZHANG Qing-yu(张庆瑜)2 1. Key Laboratory of Automobile Materials, Ministry of Education, Jilin... is high and the wear resistance is improved for TiN/TaN coatings compared with those of TiN coating; the wear mechanism exhibits predominantly ploughing, material transfer and localized spallation......
), respectively. Furthermore, A(x, y) refers to the zone area at the contact patch coordinates (x, y). The relation between wear rate and wear index has been obtained based on laboratory tests [11]. 2.1.4...J. Cent. South Univ. (2017) 24: 988-1001 DOI: 10.1007/s11771-017-3501-1 Parameters studies for rail wear in high-speed railway turnouts by unreplicated saturated factorial design XU Jing-mang(徐井芒)1......
for wear experiment, hardness of which is HRC 62. The wear behavior and the wear rate of the test samples were studied by analyzing the profile of wear tracks. If the profile of a vertical section of a wear track can be measured, then the area of the profile can be calculated. The area multiplied by the mean track length represents the volume loss of the test material. Wear rate, WR, can......
was investigated on a ring-on-block tester in oil lubrication. The results showed that the wear rate increased slowly from 1.7×10-7 to 9.8×10-7 mm3/mm under the load lower than 300 N... for 1 h. These blocks were then weighed to an accuracy of 0.1 mg. Wear rate (mm3/mm) was calculated by dividing the volume wear capacity by sliding distance expressed as W=△m/(ρS) ......
Effect of Cooling Rate after hot Deformation on Structure and Mechanical Properties of Low Alloy Wear Resistance Cast iron刘剑平,李丽霞摘 要:The effect of cooling rate after 40% hot deformation on structure and mechanical properties of low alloy wear resistance cast iron was investigated by metallographic, scanning electron microscopes and detection......
temperature at a rate of 1 mm/min on INSTRON 5 500 compression instrument. The dimension of specimen was d 3 mm×5 mm. The dry sliding wear tests were carried out on a CJS111A ball-disk wear.... The experimental parameters were estimated as follows: dry condition, normal load 2 N, test-disk rate 100 r/min and test-disk wear radius 3.5 mm. Friction coefficients were automatically recorded......
to the tangential frictional forces, which get rise to flying increase of wear loss rate. Consequently, as the thickness of reaction layer is controlled under a critical value, composites reinforced by coarse WC... critically the surface and increases drastically the wear rate. At the same time, it is obvious that adhesion effect and plastic deformation are taken place in fine WC particles reinforced composites......
and Ti2O3 obviously improve the wear resistance of TiAl alloy. The wear rate is -3.27×10-7 g/(N?m). Key words: TiAl alloy; micro-arc oxidation coating; additive; corrosion resistance; wear resistance 1...-on-disc friction and wear tester under dry sliding. During wear test, a 5 N load and a 0.13 m/s sliding speed at ambient temperature were chosen. The sliding distance was 260 m. The wear rate (Dm) per......
