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, presenting microstructure of composite (b); formed interfacial transition layer (c); EDS pattern of alloy particles with different distances from bonding interface inside AN30 after infiltration (d): (d1.... Moreover, the metallurgical bonding and interfacial reactive bonding also play a key role on the stability of the bonding interface. Key words: pressureless infiltration; steel/alumina composites......
on metallographic microstructure and composition besides the bonding interfaces were investigated by means of optical microscope, scan electron microscope and energy spectrum. The results show that molten region in swirl and molten fracture layers comprised of Ti-Ta-Nb mixtures occur along the interface of Nb/Ti35 exploding joint. This is disadvantageous for joint to using in corrosive conditions......
方式Mo(111)/MoSi2(110)的界面结构示意图 Fig. 1 Scheme of interface structures of Mo(111)/MoSi2(110) with different coordination types 表1列出了Mo(111)/MoSi2(110)的几何参数,包括Mo晶格的初始位置,弛豫后位置,以及配位方式.从表1中可以看出,只有三个配位位置...;Geometric parameters and interface energies of Mo(111)/MoSi2(110) 为了研究Mo(111)/MoSi2(110)界面的稳定性,需要计算体系的界面能.根据表/界面能的定义[27-28],Mo(111)/MoSi2(110)界面能的计算公式如下 ......
Microstructure of reactive sintered Al bonded Si3N4-SiC ceramics CUI Chong(崔 崇), WANG Yuan-ting(王媛婷), JIANG Jin-guo(江金国), CHEN Guang(陈 光), SUN Qiang-jin(孙强金) Department of Materials Science... ℃, using Al as sintering additive. The phase composing of ceramics was identified with an X-ray diffractometer and the microstructure of the materials was studied by scanning electron microscopy......
the effect of SiC particles addition on the microstructure of alloy matrix, it is necessary to determine the microstructures of the SiC matrix interface. Fig.2(a) shows the morphology of the SiC-matrix... Microstructure and mechanical properties of Al-Fe-V-Si/SiCp composites CHEN Zhen-hua(陈振华), HE Yi-qiang(贺毅强), YAN Hong-ge(严红革), HAO Liang(郝亮), CHEN Zhi-gang(陈志钢), CHEN Gang(陈刚) College......
; 文献标志码:A Surface-interface structures and characteristics of anodic oxidation film on 7475 aluminium alloy KONG De-jun, WANG Jin-chun, LIU Hao (College of Mechanical Engineering, Changzhou University, Changzhou 213016, China) Abstract: The layer of oxide film was prepared on the surface of 7475 aluminum alloy by anodic oxidation method. The surface-interface morphologies, chemical......
types for γ-Ni/α-Al2O3 interface with different orientations and coherent strains (Ni, Al and O atoms are represented by dark blue, green and red spheres, respectively) 1.1.1 界面原子化学配比的影响 BC/TGO界... (c) and calculated interfacial phase diagram for T=1300 K (d) (Approximate variation range of near-interface Al activity is represented as orange bar) 图4所示为计算预测的元素Zr对界面的偏析能力,并与之前杂质S偏析的计算结果[12, 14]对比.结果......
) 图7 各区域连接界面 Fig. 7 Joining interfaces of each zone 图8 不同预成形直径时区域界面波参数 Fig. 8 Interface wave parameters at different preform diameters 对比波形参数变化和连接件抗拉力可知,当工艺参数一定下,连接界面外侧区域波形特征对连接...速度时各区域界面波形参数 Fig. 9 Interface wave parameters at different velocities 3.3 界面微观组织分析 图10所示为预成形直径16 mm时不同放电能量下的接头连接界面的微观形貌.由图10可见,除放电能量为4.4 kJ的界面外,其他试样均呈现出明显但不规则的波状界面,两侧金属未出现明显的熔融状态.放电能量为5.9......
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