本文關(guān)鍵詞： 鋁合金 組織 織構(gòu) X射線衍射 CC AA CC AA　出處：《光譜學(xué)與光譜分析》2015年03期 　論文類型：期刊論文

【摘要】：連續(xù)冷卻鑄造5083鋁合金板較大塑性變形量冷軋后的組織、織構(gòu)及性能與再結(jié)晶處理工藝關(guān)系的研究有限。對(duì)冷軋壓下量約為91.5%的CC5083與CC5182鋁合金板分別進(jìn)行室溫入箱式電爐、隨爐不限速升溫到不同溫度退火2 h和分別進(jìn)行直接入不同溫度鹽爐退火30 min、出爐水冷至室溫后,采用偏光金相顯微鏡觀察組織、采用X射線衍射檢測(cè)織構(gòu),進(jìn)一步對(duì)比研究較大壓下量冷軋后退火工藝與再結(jié)晶組織和織構(gòu)關(guān)系。結(jié)果顯示:(1)電爐退火CC5083鋁合金板的再結(jié)晶開(kāi)始及晶粒長(zhǎng)大溫度為343℃,晶粒長(zhǎng)大后形狀為長(zhǎng)條狀(創(chuàng)新點(diǎn));鹽爐退火CC5083鋁合金板的再結(jié)晶開(kāi)始溫度為343℃;二者再結(jié)晶完成溫度都為371℃。(2)CC5182鋁合金板分別在電爐與鹽爐454℃以上退火,晶粒開(kāi)始顯著長(zhǎng)大;電爐退火與鹽爐退火CC5083鋁合金板再結(jié)晶開(kāi)始溫度分別高于電爐與鹽爐退火的CC5182鋁合金板,鹽爐退火CC5083鋁合金板再結(jié)晶晶粒長(zhǎng)大溫度高于另外三種方式退火;CC5182鋁合金板鹽爐退火再結(jié)晶晶粒長(zhǎng)大溫度高于電爐退火的。CC5083和CC5182鋁合金冷軋板表層再結(jié)晶及再結(jié)晶晶粒長(zhǎng)大溫度明顯高于內(nèi)層的(創(chuàng)新點(diǎn))。(3)四種方式退火再結(jié)晶晶粒長(zhǎng)大溫度及相同溫度退火時(shí)織構(gòu)轉(zhuǎn)變程度有差異(創(chuàng)新點(diǎn));退火過(guò)程中織構(gòu)檢測(cè)結(jié)果與金相組織觀察結(jié)果反映的再結(jié)晶進(jìn)程不很一致。
[Abstract]:The relationship between microstructure, texture, properties and recrystallization treatment process of 5083 aluminum alloy sheet after cold rolling with large plastic deformation of continuous cooling casting is limited. The CC5083 and CC5182 aluminum alloy plates with a reduction of about 91.5% in cold rolling are carried out in a box furnace at room temperature, respectively. After annealing at different temperature for 2 h and directly in salt furnace at different temperature for 30 min, the microstructure was observed by polarizing metallography microscope, and the texture was examined by X-ray diffraction. The recrystallization structure and texture of CC5083 aluminum alloy sheet annealed in a large reduction volume after cold rolling are compared. The results show that the recrystallization start and grain growth temperature of CC5083 aluminum alloy sheet annealed in the electric furnace is 343 鈩，

本文編號(hào)：1513270