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; 文献标志码:A Microstructures and properties of 2099 Al-Li alloy LIN Yi, ZHENG Zi-qiao, LI Shi-chen, KONG Xiang, HAN Ye (School of Materials Science and Engineering, Central South University, Changsha 410083, China) Abstract: Tensile properties, stress corrosion properties and microstructures of 2099 Al-Li alloy under different aging conditions......
; 文献标志码:A Microstructure and mechanical properties of 2099 Al-Li alloy extrusion materials ZHANG Zhen-qiang, XU Xiao-jing, SONG Tao, ZHANG Yun... and mechanical properties of 2099 Al-Li alloy extrusion materials were investigated by optical microscopy (OM), scanning electron microscopy (SEM), ambient temperature tensile testing and fracture......
(School of Materials Science and Engineering, Central South University, Changsha 410083, China) Abstract: The homogenization process of 2099 Al-Li alloy was investigated by OM, SEM and TEM. And the corresponding mechanical properties at room temperature were obtained by micro-hardness tester and MTS testing machine. The results show that the suitable homogenization process of 2099 Al-Li alloy is 530......
and properties of 2099 Al-Li alloy during thermal mechanical process were investigated. The results show that coarsen dendrites and severe grain boundaries segregation of as-cast alloy are eliminated...%, respectively. The stress corrosion cracking (SCC) susceptibility of alloy decrease with aging time, and the strength loss rate of over-aged alloy is 5.5%. Key words: 2099 Al-Li alloy; homogenization......
, TIRASCHI R, PARRISH C, BABEL H W, OGREN J R, ES-SAID O S. Design of multistep aging treatments of 2099 (C458) Al-Li alloy[J]. Journal of Materials Engineering and Performance, 2005, 14(5): 641-646. [5... additions in 2099 Al-Li alloy[J]. Rare Metal Materials and Engineering, 2010, 39(9): 1583-1587. [7] 许晓静, 王 彬, 吴桂潮, 张福豹, 宋 涛, 罗 勇, 程晓农. 锶微合金化高锌2099型铝合金抗晶间腐蚀及剥蚀性能[J]. 稀有金属材料与工程, 2011, 40(S2): s248-s251......
by 3.0% and increased the elastic modulus by approximately 5.0% [2]. A representative 3rd generation Al-Li alloy is the AF/C 458 alloy, which was developed in 1997 and designated as AA 2099... shortcomings, especially mechanical anisotropy, of previous Al-Li alloys [4]. The 2099 alloy was selected because it was a candidate for several production applications. Among current Al-Li alloys, 2099 Al......
of trace Sc on the microstructure and mechanical properties of 2099 Al-Li alloy were investigated by metallographic optical microscope (OM), scanning electron microscope (SEM), tensile, and transmission... of 2099 alloy. Key words: Sc; Al-Li alloy; mechanical properties; microstructure 自1942年美国Alcoa公司申报专利的第一个工业用铝锂合金即2020合金起,锂铝合金的发展已有70多年的历史.尤其是近20年来,随着航空航天工业的发展,锂铝合金的开发应用可谓突飞猛进,先后开发了......
of solution treatment on microstructures and mechanical properties of 2099 Al-Li alloy [J]. Archives of Civil and Mechanical Engineering, 2014, 14(4): 61-71. (in Chinese) [17] LI Hong-ping, YE Ling-ying, ZHANG...Trans. Nonferrous Met. Soc. China 29(2019) 263-269 Effect of large strain cross rolling on microstructure and properties of Al-Li alloy plates with high magnesium content Cai-he FAN1, Dong-sheng......
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