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Wear behavior of Al-Si alloy matrix composites reinforced by γ-Al2O3 decomposed from AACH FU Gao-feng(付高峰)1, ZHANG Jing-xin(张景新)2, LIU Ji(刘 吉)1, WANG Zhao-fei(王肇飞)1 1. School of Materials.... It is found that the γ-Al2O3 particles distribute more uniformly in the matrix by adding AACH than by adding γ-Al2O3 directly. The wear tests show that the volume loss of the unreinforced Al-Si alloy......
of 15-500 km. The wear rate increased initially with traversal distance, attained a maximum and decreased thereafter irrespective of the specimen and test environment. However, the wear rate peaks were less prominent in the liquid plus sand environments than the liquid-only medium. Further, the wear rate peak in the liquid-only medium appeared at a shorter traversal distance than the one in the sand......
m/s for distance up to 2000 m. The wear mechanisms of the worn out surface were studied using SEM analysis. The influence of test parameters on wear rate of the pins was established using a linear... of load (L), distance (D), and particle size. It was reported that the wear rate increased with the increase in abrasive size and L, and decreased with the increase in D. The equations developed......
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the relationship between the wear rate of MAO coatings and the increase extent of voltage. It can be seen that the wear rate decreases rapidly when compared with the matrix with the increase extent. The wear rate decreases close to 1 order of magnitude when it is 5 V. The wear rate decreases close to 2 order of magnitude while the increase extent of voltage increases to 10 V; then the wear rate displays......
Dry Sliding Friction and Wear Properties and Wear Mechanism of SiC_P/Al Composites金云学Provincial Key Llaboratory of Advanced Welding Technology,Jiangsu University of Science & Technology摘 要:Dry sliding friction and wear properties of A356/SiC composites against AISI D2 were analyzed by means of SEM,XRD and EDS.Results indicated that the wear rate......
content of RE, the wear rate of cast steel reduced at first and then increased. By adding 0.05%(mass fraction) RE, the cast hot-forging die steel with optimum thermal wear resistance was obtained, which...Research on Thermal Wear of Cast Hot Forging Die Steel Modified by Rare Earths Chen Kangmin1,Wang Shuqi1,Jiang Qichuan2,Cui Xianghong2 (1.School of Materials Science & Engineering, Jiangsu......
°. Sliding wear behaviour was examined using a conventional ball-on-disc apparatus. A sintered ceramic ball (Al2O3) was employed as the counterface. The Ni (Ct)-65 wt.% TiB2 coating had a lower wear rate...Microstructure and Sliding Wear Behaviour of Ni(Cr)-TiB2 Coatings Deposited by HVOF Spraying of SHS Powders Zohreh Sadeghian1,Behnam Lotfi2 (1.Department of MaterialsScience and Engineering......
wider and deeper. Under robbing circumstance, the specific wear rate of specimen can be calculated as follows[13]: K=Vw/(P?s) where K is the specific wear rate, mm3/(N?m); Vw is the worn volume, mm3; P......
resistance of Al3Ti/Al composites produced by electromagnetic induction are higher than that of the Al matrix. The wear rate of the composites varies to 9.58, 8.54, 6.56, 4.33 mg/(cm2·h-1) with electromagnetic induction increase, compared with the wear rates of the pure Al matrix (14.43 mg/ (cm2·h-1). In this study, the wear rate was defined as the rate of material removal per unit sliding distance......
