摘要
对一种含钪０．２４６％的工业纯铝冷轧７０％后进行了再结晶研究，测定了材料在各种温度下保温１ｈ，水淬后的硬度及电导率值，参照Ｘ射线衍射的结果，发现材料的再结晶起始温度为３８０℃，终了温度为４５０℃。ＴＥＭ研究表明，弥散分布的ＳｃＡｌ３相对位错的钉扎作用是材料再结晶温度高的原因；再结晶过程为亚晶聚合形核机制。
Recrystallization of a Scbearing 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 1 h and quenching. Referring to the result of Xray 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 nailup effect of highly dispersed ScAl3 precipitates on dislocation, and the recrystallization process presents itself a nucleation mechanism with subgrain coalescence by means of TEM.
出处
《中国有色金属学报》
EI
CAS
CSCD
北大核心
1998年第1期85-88,共4页
The Chinese Journal of Nonferrous Metals
关键词
工业纯铝
再结晶
亚晶聚合
钪
Sc industrial pure aluminum recrystallization subgrain coalescence
