abstract:A macrograph, or a photomacrograph, is an image taken at a scale that is visible to the naked eye, as opposed to a micrographic image. It is sometimes defined more precisely as an image at a scale of less than ten times magnification.
The research contents are included as follows: metallurgicaleffectofelectromagneticstirring; inclusion, macrograph, segregation of composition; propertiesof final rolled steel products.