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.

本文介绍了等离子涂层/基材界面的透射电子显微镜结果。研究了其元素和相组成以及缺陷子结构。将高速钢R18-Yu涂层在氩气介质中沉积到30HGSA型钢基体上，并经过多次高温回火。结果表明，涂​​层和基体均相互合金化。基底主要表现出具有层状形态的多相、多元素亚纳米晶结构。结果表明，多次高温回火导致在马氏体板条结构的体积和边界处形成碳化物纳米颗粒。