Characteristics of Grade R4 Steel Manufactured by Ingot Casting and Used in the Production of Offshore Mooring Chains

IF 0.8 Q3 ENGINEERING, MARINE

Transactions on Maritime Science-ToMS Pub Date : 2023-04-20 DOI:10.7225/toms.v12.n01.w02

F. Mainier, M. Canto, M. Meiriño, J. Delesposte, André Alencar-Junior

引用次数: 0

Abstract

The objective of this study is to characterise grade R4 steel manufactured by ingot casting that is used as the raw material for the production of offshore mooring chains. Rolled bars of grade R4 steel have been selected and metallographic analyses and micro hardness, tensile and Charpy V-notch impact tests performed. Tensile and Charpy V-notch impact tests have also been carried out on mooring links manufactured from the same grade R4 steel. Based on the results presented, the influence of the rolling reduction ratio of the bars and the influence of the ingot casting cooling and reheating process have been observed. Both factors have been found to increase product quality, particularly with respect to the central segregation and homogeneity of the rolled bars.

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用铸锭铸造R4级钢在近海系泊链条生产中的特性

本研究的目的是表征由铸锭制造的R4级钢，这种钢被用作生产海上系泊链的原材料。选择了R4级钢的轧制棒材，并进行了金相分析和显微硬度、拉伸和夏比v形缺口冲击试验。用相同等级的R4钢制造的系泊杆也进行了拉伸和夏比v形缺口冲击试验。在此基础上，观察了棒材轧制压下率的影响以及铸锭冷却和再加热工艺的影响。这两个因素都可以提高产品质量，特别是在轧制棒材的中心偏析和均匀性方面。

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

Transactions on Maritime Science-ToMS ENGINEERING, MARINE-

CiteScore

1.50

自引率

12.50%

发文量

期刊介绍： ToMS is a scientific journal with international peer review which publishes papers in the following areas: ~ Marine Engineering, ~ Navigation, ~ Safety Systems, ~ Marine Ecology, ~ Marine Fisheries, ~ Hydrography, ~ Marine Automation and Electronics, ~ Transportation and Modes of Transport, ~ Marine Information Systems, ~ Maritime Law, ~ Management of Marine Systems, ~ Marine Finance, ~ Bleeding-Edge Technologies, ~ Multimodal Transport, ~ Psycho-social and Legal Aspects of Long-term Working Aboard. The journal is published in English as an open access journal, and as a classic paper journal (in limited editions). ToMS aims to present best maritime research from South East Europe, particularly the Mediterranean area. Articles will be double-blind reviewed by three reviewers. With the intention of providing an international perspective at least one of the reviewers will be from abroad. ToMS also promotes scientific collaboration with students and has a section titled Students’ ToMS. These papers also undergo strict peer reviews. Furthermore, the Journal publishes short reviews on significant papers, books and workshops in the fields of maritime science.