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 Wysłany: Nie 13:08, 02 Sty 2011 Temat postu: ugg milano 5A05 aluminum alloy high temperature th |
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5A05 aluminum alloy high temperature thermoplastic deformation microstructure observation
Out in the hot deformation of aluminum alloy is also dynamic recrystallization. \thousand atoms thick, slip is not a continuous process, only when the stress reaches the critical stress before suddenly began to slip. In the sliding process, the grain boundaries and sub grain boundary movement are obstacles to the dislocation caused by accumulation of lattice contorted, the last place in the grain boundary movement. 5A05 aluminum alloy at high tension to occur within the crystal lattice rotation and grain sliding cyberspace phenomenon. Neck neck in the deformation process, because the grain movement at different speeds, movement speed and movement of grain between the grains of slow, not by the open grain filling and form a hollow,ugg milano, as shown in Figure 4, continued deformation increase in the number of grains produced a slip line, slip occurs within the crystal, so the cross-slip deformation occurred, and some slip surface through the grain boundary,air jordan shoes cheap, grain boundary sliding occurred. Continued deformation, the occurrence of movement between the grains, as shown in Figure 5, l #, 2 small longitudinal movement between the grains. Larger lateral movement, two had a hole between the grains; 2,stivali ugg,3 grains, intragranular slip in a different direction, the direction of slip along the 4, and greater movement and Figure 6 is 5A05 aluminum alloy during hot deformation occurred Photo Figure 45A05 crystal rotation during hot deformation of aluminum box sets generated empty box Figure 55A05 aluminum units produced during hot deformation of aluminum sliding Figure 65A05 sets box during hot deformation of the crystal rotation Light Alloy Fabrication Technology 2000, Vo1.28 afraid 6 When the deformation is small, the grains and grain phase is almost asking, when the deformation increased,ugg italia, the grain and grain, there have been rotation. These phenomena in ordinary optical microscope is very difficult to observe, and in the high temperature optical microscope can be clearly observed. Superplastic deformation mechanism is grain boundary sliding and grain rotation, and is accompanied by atomic diffusion caused by the mass transfer. ... Alloy produces thermoplastic deformation space Si, the occurrence of dynamic recrystallization, grain and intergranular slip in and direct observation of lattice rotation, etc., for the superplastic mechanism of depression and provides powerful evidence of effective parties. 3 Conclusions (1) 5A05 high temperature tensile aluminum Taijin when dynamic recrystallization occurred. (2) the use of high-temperature optical microscopy can be directly observed in high temperature deformation of 5A05 aluminum Taijin generated when empty, the occurrence of the phenomenon of grain sliding and lattice rotation. (3) high temperature optical microscope to study the mechanism of superplasticity has cracked tools. References: ��1] 1 G Xiang Hu, Qian rhizosphere. Kui is a science [M]. Shanghai: Shanghai Science and Technology Press ,1980.340-348 (Continued from page 43) ... ... ... ... ... ... ... ... a ... i ... ... 'a one �� ... ... .... !. - A. *. ... - But do not develop a large corrosion pits. Therefore, in most cases do not need to use anti-corrosion treatment. Its not sensitive to stress corrosion. 4 Conclusion In summary, 6005A alloy has good processing properties and moderate mechanical strength. Currently, 6005A Taijin less used in China, reference: But as China's high-speed, lightweight aluminum trains and subway trains and light goods vehicle research and development, for supporting the production of large vehicles, Southwest Aluminum profile extrusion plant 8OMN pressure transformation of the production line, extrusion lines Liaoyuan ALUMINUM 75MN and Shandong jungle Group 100MN completed the construction of extrusion lines, as the vehicle timber 6005A alloy panels in China will be more widely used. L�� ��1 [Act�� Maxi Fu D, Fei Fulei P. 6OO0 department of the strong extruded aluminum stack [A��. Zhang Junyao translation, Hongyong first. Zhang Junyao, WANG Zhu-tang, deformation of aluminum alloy and other compilation album of modern foreign ��c]. Beijing: Metallurgical Industry Press ,1987,97-108. ��2�� ��Switzerland] L | In8 by J. Heat treatment method can be extruded alloy profiles of AIMi performance and other properties of ��A]. LIU Jing. Fu Kai drink compilation. The latest technology the world of contemporary aluminum ��1�� [q. Changsha: Central South University Press. 1,991,166 for a l73. ��Law] Maxi Fu D. 6000 high performance alloy extrusion ��A��. Translated to the gram. Hongyong first, Zhang Junyao,ed hardy clothing, WANG Zhu-tang, so compiled. Deformation of aluminum alloy modern foreign project c�� ��Beijing: Metallurgical Industry Press, 1987,8 O ~ a 96 ... ... ... ... ... ... ... ... ... - a. ��. -. 1. ��. Extrusion pressure is greater than the United States and Germany extruder 80MN Aluminum Association, according to a survey in Japan, the United States extrusion pressure: ~-y-80MN extrusion machine with 7, Germany 1 set, and their brief technical parameters are as follows (Wang Tong Zhu ) a
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