Influence of Stress-corrosion Fractures on Potential of Ship-building Metals in the Sea Water

Kramar, Vadim; Dushko, Veronika; Rodkina, Anna; Zaiets, Anastasiia

doi:10.1016/j.proeng.2015.01.468

Cited by 8 publications

(8 citation statements)

References 1 publication

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“…According to GOST 26501.85 [8], the protective potential of the ship hull can vary from -0.75 to -0.95 V. Taking into account the negative effect of local defects, cracks on the rate of failure of the objects, it is also necessary to take into account the value of the metal potential at the apex of such defects, that is, without an oxide film. In the course of the study, the authors have experimentally obtained the values of such potentials, but without cathodic polarization [9], [10]. To select a method for studying the metal surface under cathodic polarization, the method of analyzing hierarchies is applied prior to the beginning of its conduct [11], [12].…”

Section: Choice Of the Methods For Investigation The Metal Surface Under Cathodic Polarizationmentioning

confidence: 99%

“…Laboratory base for creating a silver chloride reference electrode According to the patent [15], a laboratory base was developed for realization of all stages of manufacturing of CRE (Figure 4). Necessary equipment and equipment: laboratory table (1); work desk (2); working chair (3); computer (4); muffle furnace SNOL 73/600 (5); manual press PR-2 (6); shelf with technical documentation (7); Luminescent lamp 60 W (8); the fire safety sensor (9); refrigerator Indesit ST 145 (10); a cabinet for storage of inventory and chemical utensils (11); safe deposit box (12); table lamp (13); fire extinguisher (14); general ventilation system (15); the sink (16).…”

Section: Methods Of Conducting Polarization Investigations Of Metalsmentioning

confidence: 99%

“…It is necessary to determine the electrochemical characteristics on the juvenile surface of the metal. Carrying out of the given researches is possible with application of the device for creation of a freshly formed metal surface [9], [16].…”

Section: Methods Of Conducting Polarization Investigations Of Metalsmentioning

confidence: 99%

See 2 more Smart Citations

Development of the Metals Electrochemical Characteristics Determining Method at Cathode Polarization

Ivanova¹,

Rodkina²,

Kramar³

et al. 2018

Proceedings of the 29th International DAAAM Symposium 2018

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During the research, the authors, using the hierarchy analysis method, made a choice of the method for studying the metal surface under cathodic polarization. A technique for studying metals without surface oxide films has been developed, which corresponds to the state of the metal surface at the tip of a crack or other local defect. The substantiation of a choice of the reference electrode necessary for carrying out of researches is presented. Deficiencies of the existing production technology of porous silver chloride reference electrodes are determined, a laboratory base for their production is developed. The obtained reference electrodes are necessary while investigating the potentials of steels under cathodic polarization, which is especially important for determining the parameters of protection against corrosion-mechanical to sea vessels and structures with a long service life of about 50 years. The main task of the further research is to ensure the protection of steel in sea water from general corrosion, as well as from local corrosion-mechanical destruction. Necessary results can be achieved by applying the obtained values of the potential as protective in the systems of cathodic protection of sea vessels and structures by impressed current, providing the potential of an uncharged steel surface.

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Section: Choice Of the Methods For Investigation The Metal Surface Under Cathodic Polarizationmentioning

confidence: 99%

Section: Methods Of Conducting Polarization Investigations Of Metalsmentioning

confidence: 99%

See 1 more Smart Citation

Development of the Metals Electrochemical Characteristics Determining Method at Cathode Polarization

Ivanova¹,

Rodkina²,

Kramar³

et al. 2018

Proceedings of the 29th International DAAAM Symposium 2018

Self Cite

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“…The greatest tendency to corrosion-mechanical fracture of high-strength low-alloy steels is observed in conditions of long-term static loading at temperatures close to room temperature and is determined by the following main factors [5][6][7][8][9][10][11]: the structural state and chemical composition of steel, the level of residual local micro-stresses, the aggressiveness of the corrosive medium, etc. Taking into account these factors is an actual scientific problem related to the variety of approaches to the study of the process of corrosion-mechanical fracture and a small number of standardized methods of corrosion-mechanical tests.…”

Section: Introductionmentioning

confidence: 99%

On the Influence of Internal and External Factors on the Processes of Corrosion-Mechanical Fracture of High-Strength Low-Alloy Steels

et al. 2021

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The article studies the influence of internal and external factors on the process of corrosion-mechanical fracture. It is shown that depending on the conditions of hydrogen charging (temperature and chemical composition of the corrosive medium, type of polarization), the mechanical properties of low-alloy steels change dramatically during the initial period of the experiment. With further increase in the holding time in a corrosive medium without polarization, there is no significant change in mechanical properties. It was found that an increase in the level of applied tensile stresses leads to a reduction in the incubation period of microcracks during hydrogen cracking. It was found that the sensitivity of low alloy steels to cracking is largely determined by the relaxation ability of the structure-the relaxation of residual peak micro-stresses localized at the grain boundaries and substructure boundaries reduces the sensitivity to corrosion-mechanical fracture.

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“…Florianovich, A.V. Khoroshilov, M. Fontan, R. Staley, V. Kramar, V. Dushko, A. Rodkina, A. Zaiets, M. Barhalescu, C. Dumitrache, E. Oanta, A. Sabau, R. Kralikova, M. Andrejiova, E. Wessely which are aimed at study the mentioned effects [1][2][3][4][5].…”

Section: Introductionmentioning

confidence: 99%

Alternative Sources of Supply for Stand-Alone Automation Devices on Supports High-Voltage Lines

Breido¹,

Voytkevich²,

Em³

et al. 2016

DAAAM Proceedings

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Currently, Kazakhstan and CIS countries no system diagnostics and protection elements of high-voltage power lines on the basis of local automation systems. At the same time a great need for cathodic protection systems of support elements, the system control leakage suspension insulators, sleet and snow build-up of deposits. The main obstacle to the establishment of such systems is the lack of energy sources. This paper is designed layout receivers electrostatic converters. Based on the developed equivalent circuits created a simulation model for the magnetic component of a resonant circuit.

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Influence of Stress-corrosion Fractures on Potential of Ship-building Metals in the Sea Water

Cited by 8 publications

References 1 publication

Development of the Metals Electrochemical Characteristics Determining Method at Cathode Polarization

Development of the Metals Electrochemical Characteristics Determining Method at Cathode Polarization

On the Influence of Internal and External Factors on the Processes of Corrosion-Mechanical Fracture of High-Strength Low-Alloy Steels

Alternative Sources of Supply for Stand-Alone Automation Devices on Supports High-Voltage Lines

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