Ce含量和再结晶退火温度对稀土铝箔再结晶组织与硬度的影响

Effect of Ce content and recrystallization annealing temperature on structure、texture and hardness of the rare earth aluminum foil

利用Axiovert 25型金相显微镜和德国Leica显微硬度仪对稀土铝箔的再结晶组织和硬度进行了观察和分析,并利用EBSD微取向分析术对稀土铝箔的再结晶织构进行了研究。结果表明,随着Ce含量的增加,再结晶退火后的组织变得更细小,硬度增加。稀土铝箔的再结晶经历了回复、再结晶和晶粒长大三个过程。加入Ce可以增加立方织构的取向密度,但不是越多越好,w(Ce)=0.0074%时立方织构的取向密度最大,且立方织构的取向密度随着再结晶退火温度的增加而增大。

Using Axiovert 25 metallography microscope and German leica microhardness instrument to study the recrystallization structure and hardness of the rare earth aluminum foil. And using the EBSD micro orientation analysis technique to study the recrystallization texture of the rare earth aluminum foil. The result indicated that, along with the rate earth Ce content increase, the structure of the recrystallization annealing becomes tinier, and the hardness increases. The rare earth aluminum foil recrystallization has experienced three processes：recovery, recrystallization, and the crystal growth. It＇s possible to increase the orientation density of the cube texture when Joins Ce, but is not more the better, cube texture orientation density is the biggest when Ce content is 0.0074%. Also the cubic texture orientation density increases along with the recrystallization annealing temperature increase.