摘要
本文在利用单向凝固技术制备出组织规则的Bi/MnBi共晶自生复合材料的基础上,分析了共晶MnBi相的微观形貌。通过计算MnBi相晶体结构中各晶面原子密度,确定(1120)面和(1010)_(Mn(MnBi))面分别是晶体的原子最密排面和次密排面。由此分析了共晶MnBi纤维V形截面及有关金相形貌的成因.
Bi/MnBi eutectic in situ composite was produced by unidirectional solidification technique. The eutectic has a quasi-regular structure, in which the cross section of MnBi fibre is V-shaped and rod-like in longitudinal section, the aspect radio being about 300. The formation of this V-shaped MnBi phase was studied by crystallographic analysis. The conclusion is that the (1120) face is the closest packed one while the (1010) face is the next.
出处
《东南大学学报（自然科学版）》
EI
CAS
CSCD
1992年第2期59-63,共5页
Journal of Southeast University：Natural Science Edition
关键词
铋基合金
复合材料
形貌分析
bismuth-base alloys, composite materials, morphological analysis, Bi/MnBi euteetie
