在日常生活中,人们接触的各种材料的微观结构可以按其组成原子在三维空间的排列状态分为两种,即有序结构和无序结构。根据这种结构特征,我们可以把材料分为晶体和非晶体。其中金属一般为晶体结构,其原子排列整齐规律。金属是非常重要的材料。伴随着青铜、铁、钢材、铝、钛等金属材料的发现和使用,人类的文明也飞速进步。相反 In daily life, the microstructure of various materials that people contact can be divided into two kinds according to the arrangement state of their constituent atoms in three-dimensional space, that is, ordered structure and disorder structure. Based on this structural feature, we can classify the material into crystalline and amorphous. The metal is generally crystal structure, the atomic arrangement of neat rules. Metal is a very important material. Accompanied by the discovery and use of bronze, iron, steel, aluminum, titanium and other metal materials, human civilization is also rapidly progressing. in contrast