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一、三种不同类型的粗晶 生产实践表明,在高温合金锻件的各个部位都可能出现粗晶,但是,如果按照它形成的原因来区分,则主要有以下三种: 1.高温加热形成的粗晶
First, the production of three different types of coarse grain shows that coarse grains may appear in all parts of the forgings of high temperature alloys. However, if they are distinguished according to the reasons for their formation, there are mainly three kinds of the following. 1. High-temperature forming Crude crystal