在高碳铬轴承钢中也可能出现个别的粗大碳化物沿热变形方向排列,称为碳化物液析。铸锭凝固时,在树枝状偏析严重的情况下,局部地区钢液中的碳和铬含量很高,具备了形成共晶的条件。当共晶液体的数量很少时,共晶中的奥氏体相附加在原来的奥氏体枝晶上生成,而将其中的碳化物剩留在两个相邻的树枝晶体之间,热变形后液析碳化物沿着钢的延伸方向拉 In high-carbon chromium bearing steel may also appear along the direction of thermal deformation of individual coarse carbide, called carbide fluid analysis. In ingot solidification, in the case of severe dendritic segregation, the content of carbon and chromium in the molten steel in local areas is very high, which provides the conditions for eutectic formation. When the amount of eutectic liquid is small, the austenite phase in the eutectic is added to the original austenite dendrite and the carbide therein remains between two adjacent dendrite crystals, and the heat Deformation after the analysis of carbide along the extension of the steel pull