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; Superplastic deformation behavior and mechanism of 1420 Al-Li alloy sheets with elongated grains ZHANG Xin...; Abstract: True stress-true strain curve, microstructure and texture information were obtained to investigate the superplastic deformation......
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; Microstructural evolution during superplastic deformation of Ti-6Al-4V alloy ZHAO Wen-juan1, DING Hua1, CAO Fu-rong1, HOU Hong-liang 2, LI Zhi-qiang2 (1. School of Materials and Metallurgy, Northeastern... evolution and superplastic deformation mechanisms, the microstructures of deformed alloy were investigated by using an optical microscope and transmission electron microscope. The results indicate......
and cracks at triple junctions or interfaces between matrix and second phase particle have not been detected,which is different from superplastic tensile deformation.关键词:...Superplastic behavior of a powder metallurgy superalloy during isothermal compressionLiming Tan1,2,3,Yunping Li1,2,3,Feng Liu1,2,3,Liang Jiang1,2,31. State Key Laboratory of Powder Metallurgy,Central......
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Superplastic behavior of Al-Cu-Li based alloy DU Yu-xuan(杜予晅), ZHANG Xin-ming(张新明), YE Ling-ying(叶凌英), LUO Zhi-hui(罗智辉) School of Materials Science and Engineering, Central South University, Changsha 410083, China Received 28 July 2006; accepted 15 September 2006 Abstract: The superplastic behavior was studied in an Al-4Cu-1Li-0.4Mg-0.4Ag-0.1Zr alloy. The alloys were manufactured both......
. In general, superplastic deformation of metals is achieved with a very small grain size less than 10-15 μm [3]. 5xxx aluminum alloys, especially 5083 aluminum alloy, tend to exhibit good... engineering parts can benefit from the superplasticity of 5xxx aluminum alloys [6,7]. In this regard, various studies were conducted on the superplastic deformation of 5083 aluminum alloy, wherein......
Superplastic Behaviour of a Rapidly Solidified Al-17Si Alloy陈桂云,吴越,王国志,张永昌摘 要:<正> A rapidly solidified Al-17Si alloy was pre-pared by the ultrasonic... to 6.17×10-2 s-1.The superplastic behaviour of theas-extruded and the thermomechanically treatedsamples was compared.It was found that thethermomechanical treatment was essential toachieving......
are the dynamic recovery, dynamic recrystallization or superplastic deformation. Further analysis will discuss the microstructural characteristics of the process in this region later. 3.3 Processing maps... stress corresponding to the peak efficiency is about 0.32, which is close to that expected for superplastic deformation (0.5). The domain appears to extend to lower strain rate and may reach even higher......
1/T)) Fig.9 Apparent activation energy curve of ln(σ) vs 1/T in superplastic deformation of rolled Mg-Gd-Y-Zr sheet 4 结论 1) 在温度为435 ℃,应变速率为5×10?4 s?1的条件下,获得材料的最大伸长率为380%,相应的m值为0.56. 2..., TAKIGAWA Y, HIGASHI K. Dislocation creep behavior in Mg-Al-Zn alloys[J]. Mater Sci Eng A, 2005, 407(1/2): 53?61. [12] FUJII H, IWASAKI H, ARAKI J K. Press forming technology using superplastic deformation......
