Abstract
The structure of a multilayer metal material (MMM) produced from the U8 and 08Kh18N10 steels by the pack-rolling method has been studied using metallography and transmission electron microscopy. It has been found that two process cycles end in the formation of a laminated structure, which is characterized by structural and chemical inhomogeneity due to diffusion and relaxation processes. It is shown that, during pack rolling, an ultradispersed structure is formed in the layers; this structure is a mixture of ferrite, martensite, and austenite that consist of elements of submicrocrystalline, nanocrystalline, and microtwinned structures.
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