Study of Structural Phase Transformations in the Metal of Welded Joints of Reactor Plants for Nuclear Icebreakers

IF 0.5 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY Inorganic Materials: Applied Research Pub Date : 2022-12-01 DOI:10.1134/S2075113322060260

M. N. Timofeev, R. I. Samoylenko, S. N. Galyatkin, Yu. M. Markova, D. M. Anisimov, S. A. Korolev, S. V. Gurkin

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Abstract—The method of mathematical modeling was used to determine the rate of cooling of the heat-affected zone upon assembling the weld joints of reactor plants for nuclear icebreakers by preweld depositions. The effect of thermal cycles in various sections of deposited metal welded using three types of welding consumables, namely, carbon steel, silicon-manganese steel, and steel alloyed with nickel, was simulated using a quenching deformation dilatometer. The structure and hardness of the samples after simulated exposure to thermal welding cycles were studied. The deposited metal in using a Sv-06AA carbon wire was found to have a ferrite-pearlite structure throughout the range of cooling rates. An Sv-08GS manganese silicon wire forms an acicular ferrite structure in a wide range of cooling rates, while an Sv-10GN steel wire alloyed with nickel forms an acicular and quasi-polygonal ferrite structure.

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核破冰船反应堆装置焊接接头金属结构相变研究

摘要采用数学建模的方法，确定了核破冰船反应堆装置预焊焊接接头时热影响区的冷却速度。采用淬火变形膨胀仪模拟了碳钢、硅锰钢和镍合金钢三种焊材焊接沉积金属各断面的热循环效应。研究了模拟热焊接循环后试样的组织和硬度。使用Sv-06AA碳丝沉积的金属在整个冷却速率范围内都具有铁素体-珠光体结构。Sv-08GS锰硅丝在较宽的冷却速率范围内形成针状铁素体组织，而Sv-10GN镍合金钢丝形成针状和准多边形铁素体组织。

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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.