Correlating oriented grain number density of recrystallisation in particle-containing aluminium alloys  

含颗粒铝合金再结晶的择优取向晶粒数量密度的关联性（英文）

作　　者：赵庆龙 张辉迪 Ke HUANG Knut MARTHINSEN 

机构地区：[1]吉林大学材料科学与工程学院汽车材料教育部重点实验室,长春130025 [2]Laboratory of Thermomechanical Metallurgy-PX Group Chair,Ecole Polytechnique Fédérale de Lausanne [3]Department of Materials Science and Engineering,Norwegian University of Science and Technology

出　　处：《Transactions of Nonferrous Metals Society of China》2018年第2期220-225,共6页中国有色金属学报（英文版）

基　　金：Project(20160520116JH)support by the Science and Technology Development Program of Jilin Province,China;Project supported by Key Laboratory of Automobile Materials(Ministry of Education),Jilin University,China;Project supported by PX group EPFL,Switzerland;Project(193179/I40)supported by the Research Council of Norway

摘　　要：The recrystallized grain structure of Al-（Mn）-Fe-Si alloys after isothermal annealing was studied by electron backscatter diffraction（EBSD） technique. Statistical correlation suggests that the frequency of forming P-oriented（{011}？566？） grains at a particle larger than the critical diameter（about 1.1 μm） is about 2% when the effect of fine dispersoids and concurrent precipitation is negligible. The overall grain number density is correlated linearly with the number densities of P and Cube（{001}？100？） grains. The grain number densities of typical orientations（P, ND-rotated cube {001}？310？ and Cube） and the overall recrystallized grains increase as rolling strain increases, following a similar exponential law.采用EBSD技术研究Al-(Mn)-Fe-Si合金等温退火后的再结晶晶粒结构。统计研究表明,在无沉淀反应条件下,在大于临界直径(约1.1μm)的颗粒相周围形成P取向({011}?566?)晶粒的频率约为2%。晶粒总数量密度与P、立方取向({001}?100?)晶粒的数量成线性关系。再结晶晶粒的总数量密度及典型取向(P、ND旋转立方{001}?310?、立方)晶粒的数量密度随轧制应变量增加而增加,并服从指数规律。

关 键 词：recrystallisation texture aluminium alloys particle-stimulated nucleation EBSD 

分 类 号：TG146.21[一般工业技术—材料科学与工程]