Structure and Mechanical Properties of Electrolytic Chromium Coatings Deposited on the Inner Surface of Fuel Cladding Made of EP823-Sh Steel

IF 0.3 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY

Inorganic Materials: Applied Research Pub Date : 2025-09-24 DOI:10.1134/S2075113325701394

G. N. Elmanov, R. Sh. Isaev, P. S. Dzhumaev, A. D. Yakovleva, B. A. Loginov, I. A. Naumenko

引用次数: 0

Abstract

The structure and some mechanical properties of electrolytic chromium coatings deposited on the inner surface of the fuel cladding made of EP823-Sh ferritic-martensitic steel were studied. It was shown that the optimal temperature of the electrolytic bath for deposition of hard dense coatings without cracks is 30–35°C at a current density of 0.15–0.18 A/cm². At higher temperatures, finely dispersed columnar chromium crystals are deposited, texture appears, and microcracks are formed, which reduces the protective properties of the coating. Nanohardness, elastic modulus, elastic limit, ultimate relative deformation, tensile fracture limit, and abrasive wear resistance of the coatings are determined.

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EP823-Sh钢燃料包壳内表面电解镀铬层的组织与力学性能

研究了EP823-Sh铁素体-马氏体钢燃料包壳内表面沉积的电解铬涂层的组织和部分力学性能。结果表明，在0.15 ~ 0.18 a /cm2电流密度下，电解液的最佳温度为30 ~ 35℃。在较高的温度下，铬柱状晶体分散，出现织构，形成微裂纹，降低了涂层的防护性能。测定了涂层的纳米硬度、弹性模量、弹性极限、最终相对变形、拉伸断裂极限和磨料耐磨性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Inorganic Materials: Applied Research Engineering-Engineering (all)

CiteScore

0.90

自引率

0.00%

发文量

199

期刊介绍： Inorganic Materials: Applied Research contains translations of research articles devoted to applied aspects of inorganic materials. Best articles are selected from four Russian periodicals: Materialovedenie, Perspektivnye Materialy, Fizika i Khimiya Obrabotki Materialov, and Voprosy Materialovedeniya and translated into English. The journal reports recent achievements in materials science: physical and chemical bases of materials science; effects of synergism in composite materials; computer simulations; creation of new materials (including carbon-based materials and ceramics, semiconductors, superconductors, composite materials, polymers, materials for nuclear engineering, materials for aircraft and space engineering, materials for quantum electronics, materials for electronics and optoelectronics, materials for nuclear and thermonuclear power engineering, radiation-hardened materials, materials for use in medicine, etc.); analytical techniques; structure–property relationships; nanostructures and nanotechnologies; advanced technologies; use of hydrogen in structural materials; and economic and environmental issues. The journal also considers engineering issues of materials processing with plasma, high-gradient crystallization, laser technology, and ultrasonic technology. Currently the journal does not accept direct submissions, but submissions to one of the source journals is possible.