(南方冶金學(xué)院材料工程系, 贛州 341000;2.東北大學(xué)金屬壓力加工系, 沈陽 10006)
摘 要: 對一種含鈧0.246%的工業(yè)純鋁冷軋70%后進行了再結(jié)晶研究，測定了材料在各種溫度下保溫1h，水淬后的硬度及電導(dǎo)率值，參照X射線衍射的結(jié)果，發(fā)現(xiàn)材料的再結(jié)晶起始溫度為380℃, 終了溫度為450 ℃。 TEM研究表明, 彌散分布的ScAl3相對位錯的釘扎作用是材料再結(jié)晶溫度高的原因；再結(jié)晶過程為亞晶聚合形核機制.
關(guān)鍵字: Sc 工業(yè)純鋁 再結(jié)晶 亞晶聚合
（1.Department of Material Engineering,Southern Institute of Metallurgy, Ganzhou 341000;
2.Department of Metal Working, Northeastern University, Shenyang 110006）
Abstract:Recrystallization of a Sc-bearing industrial pure aluminum has been studied, and the samples have been rolled to 70 percent reduction after hot rolling. Hardness and conductivity were measured after annealing at various temperatures for 1h and quenching. Referring to the result of X-ray diffraction, it was found that in recrystallization the starting point is 380℃ while the finishing point 450 ℃. The increase in recrystallization temperature is caused by the nail-up effect of highly dispersed ScAl3 precipitates on dislocation, and there crystallization process presents itself a nucleation mechanism with subgrain coalescence by means of TEM.
Key words: Sc industrial pure aluminum recrystallization subgrain coalescence
