一填空1 1,具有明显的枝晶偏析组织特征2 组成物的明暗度、形态特征、分布3 树枝状,它是以金属为溶剂的固溶体,多面体,它是金属化合物4 共析,共析体,两个相或更多的相的混合物共晶,共晶体,两个相或更多相的混合物5 包晶,包晶反应生成相ε分布于反应相γ周围6 次生晶,优先分布于母相晶界,同时还可能分布于晶粒内7 组织组成物有几种、组织组成物的形态、组织组成物的分布 A fill-in space 1 1, with obvious characteristics of dendritic segregation 2 The composition of the brightness, morphology, distribution 3 dendritic, it is a solid solution of metal as a solvent, polyhedron, which is a metal compound 4 eutectoid, eutectoid , A mixture of two or more phases eutectic, co-crystal, a mixture of two phases or more 5 peritectic, peritectic reaction phase ε distributed around the reaction phase γ 6 secondary crystals, preferentially distributed in the The grain boundary of the parent phase, possibly also distributed in the crystal grain 7. There are several kinds of the tissue composition, the morphology of the tissue composition, the distribution of the tissue composition