共搜索到6430条信息，每页显示10条信息，共643页。用时：0小时0分1秒906毫秒
MICROSTRUCTURE TRANSFORMATION IN THE WELDING HEAT AFFECTED ZONE OF 800MPa GRADE ULTRA FINE STRUCTURED STEEL J.B.Liu1,Z.Q.Liu2,Z.L.Tian3,K.Miao2,L.J.Hu1,Y.T.Wang2 (1.Huazhong University of Science... and microstructure development in the heat affected zone (HAZ) of 800MPa grade ultra fine structured steel was investigated. It was found that the HAZ has intermediate temperature transformation......
Low-cost oriented preparation of ultra fine xonotlite fibersNI Wen, CHEN Shuxiang, and ZHU Lin摘 要:<正> Nanometer-sized xonotlite fibers have great potential application in many fields. The traditional method of preparing ultra fine xonotlite fibers uses the ultra fine and highly active silica as the major raw materials, which is not only expensive......
Low-cost oriented preparation of ultra fine xonotlite fibersWen Ni, Shuxiang Chen, and Lin ZhuCivil and Environmental Engineering School, University of Science and Technology Beijing, Beijing 10083, China摘 要:<正> Nanometer-sized xonotlite fibers have great potential application in many fields. The traditional method of preparing ultra fine......
Control and application of cooling path after rolling for hot strip based on ultra fast coolingYUAN Guo(袁国), LI Zhen-lei(李振垒), LI Hai-jun(李海军), WANG Zhao-dong(王昭东), WANG Guo-dong(王国栋)(State Key... of strengthening mechanisms such as fine grain strengthening, precipitation strengthening, and transformation strengthening, adapting to the development of advanced steel materials and the requirement......
constructed, and the characteristics were assessed by microstructure, grain size, grain boundary misorientation and texture. The results show that ultra fine grains (UFG) are obtained after annealing at 250... and turns into {122}<212> cube twin texture component. Key words: severe deformation; asymmetrical accumulative rolling-bonding; ultra fine grains; copper ......
Microstructures and Hardness of 8CrWMoV Steel with Multiple Types of Ultra Fine Carbides QI Yu-hong1,DAI Yu-mei1,LIU Yan-xia1,ZHANG Zhan-ping1,YU Tao1,MA Yong-qing1 (1.Institute of materials and technology, Dalian Maritime University, Dalian 116026) 摘要:The structure and hardness of 8CrWMoV steel with multiple types of ultra fine carbides are studied after annealing, quenching and tempering......
Repetitive Thermomechanical Processing towards Ultra Fine Grain Structure in 301,304 and 304L Stainless SteelsA.Momeni1,S.M.Abbasi21. Department of Mining and Metallurgical Engineering,Amirkabir... as induced by deformation.However,the intensity of ε-martensite increased as the stability of austenite decreased.Annealing after cold rolling led to the reversion of austenite with an ultra fine......
J. Cent. South Univ. Technol. (2011) 18: 932-939 DOI: 10.1007/s11771-011-0783-6 Flexural response of reinforced concrete beams strengthened with post-poured ultra high toughness cementitious... to failure on eleven reinforced concrete (RC) beams and strengthening beams to study the effectiveness of externally pouring ultra high toughness cementitious composites (UHTCC) on improving......
Synthesis and Luminescent Properties of Ultra Fine Y2O3:Eu Powders with Sheet or Block Morphology李永绣,吴燕利,罗军明,孙伟丽,汪桂花,冯晓平摘 要:Ultrafine Y2O3∶Eu powders with two typical morphologies were prepared via double oxalate route. It is found that the feeding manner and reaction procedure play a key role for the product formation of desired morphology. The SEM......
Synthesis, Characterization and Thermal Stability of CeO2 Stabilized ZrO2 Ultra Fine Nanoparticles Via a Sol-gel Route贾铁昆1,闵志宇1,LONG Fei2,LIU Ming1,FU Fang1,WANG Xiaofeng1,SUN Guang31. School...,Henan Polytechnic University摘 要:CeO2 stabilized ZrO2 ultra fine nanoparticles were successfully synthesized via a simple and effective sol-gel synthetic......
