共搜索到21579条信息，每页显示10条信息，共2158页。用时：0小时0分0秒567毫秒
J. Cent. South Univ. (2021) 28: 2269-2284 DOI: https://doi.org/10.1007/s11771-021-4768-9 Effect of hot extrusion on microstructure and tribological behavior of Al2O3p reinforced 7075 aluminum..., the transition layer becomes stable, which determines the reinforced wear resistance of the as-extruded composites. Key words: 7075 alloy; Al2O3p; composites; hot extrusion; microstructure; tribological behavior......
7075铝合金搅拌摩擦焊接头组织及性能 王希靖1,孙桂苹1 (1.兰州理工大学甘肃省有色金属新材料国家重点实验室,兰州,730050) 摘要:对航空用5 mm厚的7075铝合金搅拌摩擦焊试样热处理前后的焊缝微观组织及性能进行了研究.结果表明:当搅拌头旋转速度400 r/min,焊接速度40 nun/min时,接头拉伸强度达到353 MPa,是母材强度的78.5%;焊核区为等轴晶;经热处理后接头拉伸强度值达到母材强度的83.0%;硬度的最低处在前进侧热机影响区;断口的微观形貌表现为具有强化相的韧窝特征,且断裂几乎发生在前进侧的热机影响区.由此认为,7075铝合金搅拌摩擦焊接头的薄弱点在热机影响区. 关键词:搅拌摩擦焊; 微观组织; 7075铝合金; [全文内容正在添加中] ......
Microstructure and RRA Treatment of LFEC 7075 Aluminum Alloy Extruded Bars王高松,ZHAO Zhihao,CUI Jianzhong,GUO QiangKey Laboratory of Electromagnetic Processing of Materials, Ministry of Education... of conventional DC casting and low frequency electromagnetic casting (LFEC) 7075 aluminum alloy were investigated. The results showed that finer grains which distributed more homogeneously was obtained in LFEC......
. Improvements in strength and stress corrosion cracking properties in aluminum alloy 7075 via low-temperature retrogression and re-ageing heat treatments [J]. Corros Sci, 2003, 59(6): 520-528. [15] ZHU... Microstructural evolution of aluminum alloy 7B04 thick plate by various thermal treatments LI Zhi-hui(李志辉), XIONG Bai-qing(熊柏青), ZHANG Yong-an(张永安), ZHU Bao-hong(朱宝宏), WANG Feng(王 锋), LIU Hong......
Trans. Nonferrous Met. Soc. China 22(2012) s656-s660 Microforming of superplastic 5083 aluminum alloy Md. Abu Mowazzem HOSSAIN1, Sung-Tae HONG1, Kyu-Yeol PARK1, Young-Sang NA2 1. School of Mechanical...: The mechanical behavior of superplastic 5083 aluminum alloy during microforming process was investigated by finite element analysis. A micro V-groove die was modeled to analyze the effects of forming......
Microstructural evolution during semisolid state strain induced melt activation process of aluminum 7075 alloy A. BOLOURI1, M. SHAHMIRI2, E. N. H. CHESHMEH2 1. Department of Mechanical... rate, as well as holding time and temperature at semisolid state on the microstructural characteristics of 7075 aluminum alloy specimens were investigated. 2 Experimental The commercially pure......
Fatigue behaviour of pre-strain 7B04-T7451 aluminum alloy JIANG Feng(姜锋)1, JIAN Hai-gen(蹇海根)1, YIN Zhi-min(尹志民)1, HE Zhen-bo(何振波)2 1. School of Materials Science and Engineering, Central South... area. Key words: 7B04-T7451 aluminum alloy; high cycle fatigue; fatigue crack growth rate; endurance limit ......
> Microstructure and mechanical properties of enhanced solution treated 7075 and 2024 aluminum alloys Abstract: The effects of enhanced solution of second phases... the multi phase eutectic temperature without the formation of overheated microstructure, and improve the second phase solution. In contrast to alloy 2024, the second phases in alloy 7075 can dissolve more......
......
Effects of Aging Temperature on Microstructure and High Cycle Fatigue Performance of 7075 Aluminum Alloy杨大炼1,2,刘义伦2,3,LI Songbai2,MA Liyong4,LIU Chi2,YI Jiuhuo21. Hunan Provincial Key Laboratory...) performances of 7075 aluminum alloy were investigated under temper T651, solution treated at 380 ℃ for 0.5 h and aged at different temperatures(150, 170, 190 ℃) for 10 hours. The optimal microstructures......
