介绍了彩色金相技术的基本要领及适合于铸造合金的着色剂。应用该技术对铸铁,铸钢和非铁合金进行了着色。结果表明:利用化染法制取的彩色金相明显优于普通的黑白金相。它能很容易地区分回火马氏体与淬火马氏体和马氏体与下贝氏体等,并能显示出马氏体中的精细结构,球铁铁素体环中的亚晶界,板条状马氏体的晶体学位向及镍基合金中。固溶体内的成分偏析等。 The basic essentials of color metallography and the colorants suitable for casting alloys are introduced. Cast iron, cast steel and non-ferrous alloys were colored using this technology. The results show that the color metallography obtained by the chemical dyeing method is obviously superior to the ordinary black and white metallurgy. It can easily distinguish tempered martensite and quenched martensite and martensite and lower bainite, etc., and can show the fine structure of martensite, ductile ferrite ferrite ring boundaries, Lattice-like martensite crystal orientation and nickel-based alloys. Component segregation in solid solution.