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and the testing conditions. The wear mechanism diagram of MZA is constructed, it contains two typical regions. It suggests that the wear mechanisms of MZA in each of the region change from one... that MZA is dominated by micro-crack and brittle fracture in the severe wear region. Fig.6 SEM images in severe wear region In the whole testing range, the worn surface......
discussed. 2 Experimental The fretting wear tests were carried out using a hydraulic Deltalab-Nene testing system, as described in Ref.[7]. The material used in this study was AZ91D alloy... Fretting wear behavior of AZ91D magnesium alloy CHEN An-hua(陈安华)1, HUANG Wei-jiu(黄伟九)2, LI Zhao-feng(李兆峰)2 1. School of Mechanical Engineering, Hunan University of Science and Technology......
bearing steel ring always contacted with lubricating oil during wear test. Prior to weighing and testing, specimens and rings were cleaned in acetone for 15 min. An analytical balance with accuracy of 0.01... J. Cent. South Univ. (2020) 27: 311-324 DOI: https://doi.org/10.1007/s11771-020-4297-y Wear map for sliding wear behavior of Cu-15Ni-8Sn alloy against bearing steel under oil-lubricated condition......
. The specimens for testing, containing 0 to 3% of CNTs respectively, were 60 mm×10 mm×2 mm in size. 2.2 Friction and wear tests The friction coefficient of the composites was measured using... with loads of 1 N and 3 N at a sliding velocity of 0.16 m?s-1. The stroke length and testing distance were 10 mm and 50 cm, respectively. The wear tests were conducted on a DMT-1 multi-functional......
there is no quantitative formula to calculate the wear of the drum due to the complicated influencing factors [6]. A large number of observations and testing analyses on the wear failure of the drum have shown...J. Cent. South Univ. Technol. (2011) 18: 1808-1812 DOI: 10.1007/s11771-011-0906-0 Establishment of wear model and life prediction of drum of hot rolling coiler ZHANG Jian(章健)1, 2, PENG Yan(彭艳)1, 2......
. The volumetric wear rate W was evaluated as W=V/s(2) where s is the total sliding distance. The test deviation was not more than 6%. After testing, the worn surface of the samples was studied using... wear fragments from the testing sample. Hence, for the medium undercooling region, the predominant wear mechanism can be identified as plastic deformation and fracture. 4 CONCLUSIONS 1......
Effect of graphite content on wear property of graphite/Al2O3/Mg-9Al-1Zn-0.8Ce composites ZHANG Mei-juan(张美娟)1, YANG Xiao-hong(杨晓红)1, LIU Yong-bing(刘勇兵)1, CAO Zhan-yi(曹占义)1, CHENG Li-ren(程丽任)1, PEI Ya-li(裴亚利)2 1. Key Laboratory of Automobile Material of Ministry of Education, Jilin University, Changchun 130025, China; 2. Beijing Institute of Aerospace Testing Technology, Beijing 100074......
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the depth profiles and hence cross-sectional areas of wear tracks. Based on the wear track diameter and depth profiles at several locations, the coating volume removed during the testing was obtained... 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......