Electron Microscopy of High-Speed Steel/30HGSA Steel Interface
Russian Physics Journal(2024)
摘要
The paper presents results of transmission electron microscopy of the plasma coating/substrate interface. Its elemental and phase compositions and defect substructure are investigated. The high-speed steel R18-Yu coating is deposited in argon medium onto the type 30HGSA steel substrate high-tempered for several times. It is shown that both the coating and substrate are mutually alloyed. Primarily the substrate demonstrates a multi-phase, multi-element sub-nanoclystalline structure with the lamellar morphology. It is shown that multiple high-temperature tempering leads to the formation of carbide nanoparticles both in the volume and at the boundaries of the martensite lath structure.
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关键词
coating/substrate interface,plasma coating,high-speed steel,electron microscopy,defect substructure,elemental and phase composition
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