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: Cu-TiB2 electrodes; electrode materials; resistance spot welding; TiB2 dispersion-reinforced copper-matrix composite; zinc coated steels; degradation mechanism CLC number: TG431  ... Article ID: 1003-6326(2005)06-1219-07 Electrode degradation mechanism during resistance spot welding of zinc coated steel using Cu-TiB2 electrodes DONG Shi-jie(董仕节)1, ZHOU Norman2, CHENG......
: A Fabricating and cell structure refining mechanism of aluminum foam with fine cell structure ZUO Xiao-qing1, A. R. Kennedy2, BI Ye-shun1, LU Jian-sheng1, ZHOU Yun1, SUN Jia-lin1 (1... element 0.5%(mass fraction)Mg, adding 1% nuclear forming agent and pre-heating foaming agent by (400 ℃, 6 h)+( 475 ℃, 1 h), stirring when foaming for 50 s. The cell structure refining mechanism shows......
capability of about 2.5 times. The strengthening mechanism of the composite coatings mainly included fine-crystal grain effect, nanoparticle dispersion effect and dislocation effect. 关键词:nanoparticles...Properties and Strengthening Mechanism of Brush Plated Nanoparticle Reinforced Composite Coatings XU Bin-shi1,TU Wei-yi1,DONG Shi-yun1,Ma Shi-ning1 (1.National Key Laboratory for Remanufacturing......
固溶度的增加及β相的弥散析出也有一定的强化效果. 关键词:AM50A镁合金;激光表面熔凝;细晶强化;固溶强化;弥散强化 中图分类号:TN 249; TG 156.99 文献标识码:A Strengthening effect and mechanism of laser surface melted AM50A magnesium... mechanism of the laser melted layer were analyzed. The results show that the grain of the laser surface melted layer is highly refined and the grain size decreases with increasing scanning speed......
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Dispersion of Micro Diamond Particles in Electroless Nickel Solution朱昌洪,朱永伟College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and Astronautics摘 要:The dispersion behavior of micro-diamond particles ranging from 0 to 0.5 micron was compared between in DI water and in electroless nickel solution. The effects......
composite coatings was developed. Key words: carbon-carbon composite; TaC; SiC; structure; formation mechanism  ... is then to investigate the design methodology, preparation and structural morphology of coatings of TaC (as reference) and TaC/SiC composite. The formation mechanism and optimal preparation......
, the better its dispersion and grinding promotion activity. Keyword: limestone; ultrafine grinding aids; grinding promotion mechanism; Received: 1999-02-11...> 关键词: 石灰石;超细磨助磨剂;助磨机理; 中图分类号: TD921.4 收稿日期:1999-02-11 Ultrafine grinding aids and its mechanism Abstract: Ultrafine grinding aids of limestone and its......
J. Cent. South Univ. Technol. (2007)04-0589-06 DOI: 10.1007/s11771-007-0113-1 Working mechanism of two-direction reinforced composite foundation ZHANG Ling(张 玲), ZHAO Ming-hua(赵明华), HE Wei...:Based on the discussion about working mechanism of horizontal reinforcement and that of vertical reinforcement, respectively, the working mechanism of two-direction reinforced composite foundation......
Preparation of natural brucite nanofibers by the dispersion methodLi Xu1,2), Wen Ni1), Wenping Li3), Xingde Liu1), Hailong Yang1), and Xiaoguang Yang1) 1) State Key Laboratory of the Ministry..., China3) Kerneos Aluminate Technologies Ltd., Beijing 100027, China摘 要:The preparation of natural brucite nanofibers through dispersion by the wet process......