论文部分内容阅读
用光学金相、透射电镜和Ｘ射线衍射技术对３００４铝合金铸轧板均匀化后的组织和织构进行了分析。发现随均匀化温度的升高，ＭｎＡ１＿６析出相尺寸变大，颗粒尺寸在１～３μｍ之间；用ＯＤＦ（ＳｐａｃｅｏｒｉｅｎｔａｔｆｏｎＤｉｓｔｒｉｂｕｔｉｏｎＦｕｎＣｔｉｏｎ）分析技术测算了该板材的织构。可明显看出５８０℃均匀化处理后，保持原有织构，且有向再结晶织构（即｛１００｝＜００１＞织构）转变的趋势；６２０℃均匀化处理后，部分原有织构得以保留，存在有｛１００｝＜００１＞织构，同时有｛ｌ１２｝＜１１１＞向｛１００｝＜００１＞的织构转变。还发现析出相颗粒的形成对织构的转变有一定的抑制作用。
The microstructure and texture of 3004 aluminum alloy cast strip were analyzed by optical metallography, transmission electron microscopy and X-ray diffraction. It is found that with the increase of homogenization temperature, the precipitated phase of MnAl_6 becomes larger and the particle size is between 1 ~ 3μm. The texture of the plate is measured by ODF (Spacerientaton Distribution Distribution Analysis) technique. It can be clearly seen that after 580 ° C homogenization treatment, the original texture is maintained and the orientation of the recrystallized texture (ie, {100} <001> texture) is changed. After the homogenization treatment at 620 ° C, The structure is preserved, there is {100} <001> texture, and {l12} <111> to {100} <001> texture changes. It was also found that the formation of precipitated phase particles on the texture of a certain degree of inhibition.