摘要
采用逐层分析的方法研究了强磁场下MnBi和Al3Ni析出相的形态。发现Bi-6wt%Mn合金的铸态相中,MnBi析出相为薄片状,不呈树枝晶形貌。施加10 T磁场后,在平行磁场方向呈取向的棒状组织,在垂直磁场方向呈六方状。Al3Ni析出相在铸态组织中有初步聚合,施加10 T磁场后,沿磁场方向平行分布且层间距基本不变。
The morphology of MnBi and Al3Ni in samples which solidified under 10 T high magnetic fields was studied through layer-by-layer analysis method.In the casting sample of Bi-6wt% Mn alloy,the MnBi phase was slice type but not dendrite morphology.After treated under 10 T high magnetic fields,the MnBi phase changed to a short bar shape paralleling to the field direction,and was observed as hexagon in the direction perpendicular to the field.The Al3Ni phase primary aggregated in casting sample.After treated under high magnetic fields,the parallel structure was visible in the surface which was along the field direction and its parallel distance was almost the same.
出处
《上海金属》
CAS
2011年第5期27-31,36,共6页
Shanghai Metals
基金
国家科技部973项目2007CB616904
上海市科委项目
教委项目
长江学者和创新团队发展计划资助IRT0739
国家自然科学基金50701031资助
关键词
强磁场
MnBi
Al3Ni
凝固
形态
High Magnetic Field
MnBi
Al3Ni
Solidification
Morphology
