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炭材料的孔隙--调控的重要性 稻垣道夫1 (1.北海道大学,日本) 摘要:简要说明炭材料中的孔隙分类和特征后,就其孔隙调控方法及调控的重要性作了述评,首先评述了新近所知的常规活化工艺,而后展示了非活化处理的孔结构调控技术,诸如:模板法,PTFE脱氟,炭气凝胶,聚合物共混法,特定前躯体及制备条件选择等.提出了五类应用实例:CO2捕集,水蒸气吸/脱附,汽油蒸气吸附,超级电容器炭电极,重油吸附和回收等,进一步强调了炭材料孔隙结构凋控的重要性. 关键词:孔隙; 孔隙演化; 孔隙结构调控; 孔隙的重要性; Pores; Creation of pores; Pore structure control; Importance of pores.; [全文内容正在添加中] ......
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for dissimilar FSW of Al-Cu. Key words: aluminium; copper; friction stir welding; intermetallic compounds; mechanical properties; weld nugget zone 1 Introduction Obtaining an efficient weld... produces a large number of IMCs in different weld zones which are hard, brittle and possess lower strength and higher electrical resistance [3]. Fusion welding processes used to join Al-Cu......
Trans. Nonferrous Met. Soc. China 22(2012) 2118-2123 Microstructure characterization of Ti-6Al-4V titanium laser weld and its deformation XU Pei-quan College of Materials Engineering, Shanghai... experiment, transmission electron microscope (TEM) and high resolution TEM. Subsequently, slip deformation mechanism occurred in fracture and etched weld was discussed. The results indicate that the maximum......
of Al-Mg-Sc alloy weld joints filled with Al-Mg-Zr and Al-Mg-Zr-Sc weld wires CHEN Su-li1, JIANG Feng1, YIN Zhi-min1, LEI Xue-feng1, 2, NIE Bo1, 3 (1. School of Materials Science and Engineering...-Mg-Sc alloy sheets with 2mm thickness were welded by manual labor inert-gas arc welding method, the mechanical properties and microstructures of Al-Mg-Sc alloy weld joints filled with Al-Mg-Zr or Al......
Effect of strong carbide forming elements in hardfacing weld metalZHANG Yuanbin and REN Dengyi摘 要:<正> To achieve high carbon hard-facing weld metals with both high hardness and crack resistance, strong carbide forming elements Ti, Nb and V were alloyed into the weld metals, and their effect on the formation of carbides and the matrix......
Effect of strong carbide forming elements in hardfacing weld metalYuanbin Zhang and Dengyi Ren1) Department of Materials and Engineering, Shandong Institute of Architecture of Engineering, Jinan 250014, China2) Department of Material Science and Engineering, Shandong University, Jinan 250061,China摘 要:<正> To achieve high carbon hard-facing weld......
; 文献标志码:A 文章编号:1672-7207(2013)11-4712-08 Three-dimensional modeling of weld pool dynamics and weld bead formation during pulsed... and their effect on weld pool dynamics and the formation of weld bead in moving gas tungsten arc welding (GTAW) under the pulsed current were studied by using a 3D transient numerical model. The transient......
Effect of weld microstructure on brittle fracture initiation in the thermally-aged boiling water reactor pressure vessel head weld metalNoora Hyt?nen1,Zai-qing Que1,Pentti Arffman1,Jari Lydman1,Pekka...="ChDivSummary" name="ChDivSummary">Effects of the weld microstructure and inclusions on brittle fracture initiation are investigated in a thermally aged ferritic high-nickel weld of a reactor pressure......
