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process, Mg is preferentially dissolved and noble Cu is enriched in the remnants. This makes S become cathodic to α(Al) and leads to anodic dissolution and corrosion on the alloy base at its periphery at a later stage. Key words: localized corrosion mechanism; Mg-containing precipitate; Al alloy ......
Al4C3相的生成遵循如下反应式 [11] : 图4 半固态挤压 (挤压比10∶1) 后SiCp (7 μm) /2024铝合金复合材料的显微组织 Fig.4 Microstructures of SiCp (7 μm) /2024 Al alloy composites after extruded at ratio of 10∶1 (a) -10%SiCp (7 μm) /2024 Al alloy, transverse; (b) -10%SiCp (7 μm) /2024 Al alloy, longitudinal; (c) -20%SiCp (7 μm) /2024 Al alloy, transverse; (d) -20%SiCp (7 μm) /2024 Al alloy, longitudinal 4Al (l......
. The mechanical and wear properties of hybrid aluminium metal matrix composites were investigated. Mica and SiC ceramic particles were incorporated into Al 356 alloy by stir-casting route. Microstructures... alloy-based composites (mainly Al alloy/SiC composites). The metal matrix composites (MMCs) are slowly replacing the general light metal alloys such as aluminium alloy in different industrial......
Fracture strength of centre surface cracked tensile specimens made of 2219-T87 Al alloy welding S. RAJAKUMAR1, T. CHRISTOPHER2 1. Thanthai Periyar Government Institute of Technology, Vellore-632002... surface cracked tensile plates made of 2219-T87 Al alloy at cryogenic temperatures were correlated using a modified inherent flaw model. Fracture parameters to generate the failure assessment diagram......
J. Cent. South Univ. (2018) 25: 961-975 DOI: https://doi.org/10.1007/s11771-018-3797-5 Effect of annealing treatment on microstructure and fatigue crack growth behavior of Al–Zn–Mg–Sc–Zr alloy CHEN... in the rupture region was inversely proportional to yield strength. Key words: Al–Zn–Mg–Sc–Zr alloy; annealing treatment; microstructures; fatigue crack growth rate; fatigue crack path Cite this article......
均匀化工艺对2024高强度铝合金组织及性能的影响孙巍1,冯艳飞1,2,祝哮1,郑建1,赵怀鹏11. 营口忠旺铝业有限公司2. 内蒙古科技大学材料与冶金学院摘 要:通过采用金相显微镜,扫描电镜,力学拉伸试验机等检测手段,研究了2024高强度铝合金铸锭分别在均匀化温度480℃,495℃和510℃保温8h后经空冷和...132.5%.关键词:2024合金;均匀化工艺;组织;电导率;力学性能;......
含量略高于1号和2号铸锭的Al含量,这是由两方面的原因造成的:1) 3号铸锭实验原料配比中单质铝的比例(Al-V合金中Al质量分数为46%)低于另外两个实验；2) 3号铸锭熔炼过程中精炼区及凝固区电子束电流相应有所降低. 表3 TC4铸锭化学成分对比 Table 3 Chemical composition comparison of TC4 alloy ingot 图...司的ICP-7300V电感耦合等离子发射光谱仪分析Al,V,Fe含量. 表1 TC4合金EB熔炼工艺参数 Table 1 EB melting process parameters of TC4 alloy 2 结果与讨论 2.1 熔炼工艺对化学成分的影响 实验1获得的TC4合金锭规格为1327 mm×255 mm×623 mm,BMO-1电子束冷......
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J. Cent. South Univ. Technol. (2010) 17: 881-887 DOI: 10.1007/s11771-010-0571-8 Deformation simulation of low-temperature high-speed extrusion for 6063 Al alloy WANG Meng-jun(王孟君)1, 2, HE Zhao... Heidelberg 2010 Abstract: The hot compression test of 6063 Al alloy was performed on a Gleeble-1500 thermo-simulation machine, and the forming of 6063 rod extrudate in low-temperature high-speed extrusion......
; 文献标志码:A Effect of Al content on non-dendritic microstructure of Mg-7Zn magnesium alloy FENG Kai, HUANG Xiao-feng, MA Ying, Zheng, LI Xing-peng, HAO Yuan... alloy was investigated by isothermal heat-treatment. The results indicate that the solid fractions of alloys are declined by elevated temperature when adding Al into Mg-7Zn alloy. With Al content......
