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to investigate cutting performance. It is found that the average WC grain size in the gradient zone is larger than that in the bulk. Owing to ultrafine Ti(C0.5,N0.5) introduction, gradient cemented...Adherent coating on gradient cemented carbide with ultrafine Ti(C0.5,N0.5)Tian-En Yang1,Lan Sun1,Ji Xiong1,Zhi-Xing Guo1,Lei Wang2,Ding Cao11. School of Manufacturing Science and Engineering, Sichuan......
globosity and its pellet diameter is about 10 nm. (2) Ultrafine CeO2 and Mn2O3 can be got at 850 ℃ by calcination of Ce-Mn aerogel; however, because of powder sintering, the size of the grain increases...Preparation and Research on Ultrafine Cerium-Manganese Aerogel by Supercritical Fluid Drying Technology欧阳俊波,张光德,余高奇,余秋兰,汪厚植摘 要:Using Ce2(CO3)3·6H2O and Mn......
Low-temperature electrochemical synthesis and characterization of ultrafine Y(OH)3 and Y2O3 nanoparticlesMehdi GHAEMI33. Department of Chemistry, Science Faculty, Golestan University, P.O. Box 49138-15739 Gorgan, Iran摘 要:Ultrafine Y(OH)3 nanoparticles were successfully deposited from an additive-free 0.005 mol/L YCl3 low-temperature bath on the steel......
Low-temperature electrochemical synthesis and characterization of ultrafine Y(OH)3 and Y2O3 nanoparticlesMehdi GHAEMI33. Department of Chemistry, Science Faculty, Golestan University, P.O. Box 49138-15739 Gorgan, Iran摘 要:Ultrafine Y(OH)3 nanoparticles were successfully deposited from an additive-free 0.005 mol/L YCl3 low-temperature bath on the steel......
-Ti phase, and the ultra fine Ti35Nb2.5Sn/10HA composite powders were obtained. And ultra fine grain sized Ti35Nb2.5Sn/10HA sintered composites were obtained by PCAS. The hardness and relative density of the sintered composites both increased with increasing the ball milling time. Key words: Ti35Nb2.5Sn/10HA; ultrafine grain; powder metallurgy; milling time 1 Introduction Recently β titanium alloys......
Effects of Heat-treatment on Microstructure and Magnetic Properties of Ba Ferrite Ultrafine Powders Prepared by Sol-gel ZHENG Jia-sheng1,Zhu Mei-wu2,KONG Xiao-dong2 (1.Materials College, Huazhong... ℃ separately corresponding to BaFe2O4 and BaFe12O19. There were three types of microstructures for Ba ferrite ultrafine powder specimen annealed at 800℃. For the specimens annealed at different temperatures......
Enhanced mechanical stability of ultrafine grained steel through intercritical annealing cold rolled martensiteHuifang LAN,Xianghua LIU and Linxiu DU The State Key Laboratory of Rolling and Automation,Northeastern University,Shenyang 110819,China摘 要:The ultrafine grained ferritic steels possess high strength but low ductility due to the shortage of work......
Brazing behavior of ultrafine cemented carbide with stainless steelYANG Tian-en(杨天恩), YANG Li(杨力), XIONG Ji(熊计), SUN Lan(孙兰), GUO Zhi-xing(郭智兴), ZHENG Xiao-ming(郑晓鸣) (School of Manufacturing Science... saturation and coercivity of the ultrafine cemented carbide, the ultrafine cemented carbide was fabricated according to conventional powder metallurgical procedures, and then brazed to the stainless......
and mechanical properties and their application of micro-nanometer processing technology for biomedical ultrafine grain titanium materials were described. The latest progress in micro-nanometer.... Key words: titanium alloy; biomaterials; micro-nanometer processing; ultrafine grain; biomechanical compability 生物医用钛合金如纯钛,Ti6Al4V和Ti6Al7Nb等已成为目前较理想的外科植入物与矫形器械产品生产的主要材料,大量应用于骨科,齿科等外科植入物及矫形器械.但纳入我国外科植入......
boundaries or in the grain interior with the sizes of (57±29.7) and (27±13.1) nm, respectively. This study exhibits ultrafine microstructure and outperforming mechanical properties of the W-1.0wt.%La2O3 alloy via the liquid-liquid doping route, as compared with conventionally-manufactured tungsten materials. Key words: tungsten alloy; solution combustion synthesis; doping route; ultrafine grain......