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coherent structures, with high adhesion (critical scratch load above 120 N), high load bearing capacity up to 5 GPa., low friction (0.02-0.1), high wear resistance (less than 4xl0-17 m3/N m) even......
Study on Friction Reducing and Anti-wear of CaCO3 Nanoparticles as Additives in Lubricating Oils GU Cai-xiang1,WANG Ren-bin1,GU Zhou-ming1 (1.Shanghai Maritime University, Shanghai, China) 摘要... selected and put into lubricating oil with nanometer CaCO3 particles. By testing some parameters, such as the maximum non-seizure load, the shape and diameter of wear scar, the friction factor......
composite coating is obviously fine because of nano particles. Micro hardness at room temperature increases with the increase of nano particles content. The wear resistance and hardness at high......
Towards Long-Life Replacement Joint Prostheses - A Surface Engineering Approach Hanshan Dong1 (1.Department of Metallurgy and Materials, The University of Birmingham, Birmingham B15 2TT, UK) 摘要:How to improve the wear resistance of bearing surfaces, hereby achieving long life of orthopaedic joint prostheses has long been a technical challenge with much fundamental interest and social......
Research on Processes and Adhesion of Electroless Plating Ni-Cu-P Coating LIU Bo1,LIU De-gang1,HUANG Yan-bin1,XU Xiao-li1,ZHANG Ping1 (1.Department of Material Science and Engineering, Academy of Armored Force Engineering, Beijing 100072) 摘要:In order to improve the corrosion and wear resistance of the coatings of electroless plating Ni-Cu-P and broaden its application, an optimizing......
. The influence of boron implantation dose on the microhardness, friction coefficient and wear resistance of HSS were investigated. The experiment results showed that the implantation of boron can improve......
or wear, but little of the scratch failure mechanism of such thin films are reported. This paper presented the results of several scratch tests performed on three resin lenses coated with different......
The Research of Anti-Wear Properties of Organomolybdenum Compounds in the Engine Oils ZHENG Fa-zheng1,YAO Jun-bing2,HU Jian-qiang1,XIE Feng1 (1.Xuzhou Air Force Institute, Xuzhou ,221000, China;2.Beijing aviation oil research institute, Beijing, 100076, China) 摘要:A four-ball tester was used to evaluate the anti-wear performance of three kinds of organomolybdemun compounds in the engine oils, i......
Advanced Surface Engineering of Titanium Alloys H.Dong1 (1.School of Metallurgy and Materials, University of Birmingham, Birmingham B15 2TT, UK) 摘要:Despite their outstanding combination of properties, titanium and its alloys are very susceptible to severe adhesive wear in rubbing with most engineering surfaces and can exhibit poorcorrosion resistance in some aggressive environments. Surface......
半自磨机梯形衬板的磨损预测及其优化张学东1,董为民1,汪滋润2,孙珊珊1,周海燕11. 昆明理工大学机电工程学院机电装备集成开发研究所2. 浙江万里扬股份有限公司摘 要:半自磨机(SAG)是磨矿领域的重要设备之一,针对现有的半自磨机用梯形衬板失效频率高的情况,建立了半工业规模的半自磨机模型;依托现有的磨粒磨损相关理论和Hertz-Mindlin with Archard Wear磨损模型,在EDEM软件中建立了复杂形状下不同粒径的颗粒;利用EDEM软件和ANSYS软件进行了DEM-FEM耦合分析,得到了原有衬板的应力分布和不同区域的磨损量并依托上述模拟结果和国外学者做的工业试验对其进行改进.模拟结果表明,改进后的分体式梯形衬板有效地减少了衬板的应力集中现象;耐磨性有了较大的提高,模拟中新型衬板的最大平......
