Cavitation erosion behavior of SA 106B carbon steel after treatment of the melt with nano-sized TiC particles

Hong, Sung-Mo; Park, Jin Ju; Park, Eun-Kwang; Lee, Min Ku; Rhee, Chang Kyu; Lee, Jin Kyu; Lee, Jung Gu; Kim, Kyeong Ho

doi:10.1016/j.triboint.2015.07.016

Cited by 12 publications

(6 citation statements)

References 31 publications

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“…Additionally, plastic deformation was detected on the surface. According to Hong et al (2015), the increase in heat treatment temperature decreases the erosion resistance because of the increase in the steel grain size.…”

Section: Surface Characterizationmentioning

confidence: 99%

Heat treatment analysis of ASTM A106 steel spheroidization and erosive wear at high temperatures

et al. 2020

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The microstructures of steels are altered when exposed to high working temperatures for long periods, which results in varied physical and chemical proprieties. This study evaluates the erosive wear behavior of ASTM A106 steel after it is exposed to high temperatures for long durations. Samples of normalized ASTM A106GrB steel were placed in a muffle furnace at 530 and 630 °C for 50, 100, and 200 h. The erosive wear test was conducted at a speed of 20 m/s for 30 min at 450 °C with an incidence angle of 30°. Irregular alumina was used as the erodent material. The surface characterization was performed using scanning electron microscopy to determine the distribution homogeneity, morphological conditions, quantity, and spheroidization degree of the carbides. The erosive wear test results indicated that there was no volume loss after 50 h of heat treatment at 530 °C. The maximum spheroidization degree was 0.71 after 200 h at 630 °C, which decreased the hardness from 220 to 140 HV. Additionally, the volume loss reached 2.52 cm³. Therefore, the use of the ASTM A106GrB steel at working temperatures higher than 530 °C for more than 50 h decreased the mechanical behavior and the wear resistance, thereby decreasing the lifetime of the system.

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Section: Surface Characterizationmentioning

confidence: 99%

Heat treatment analysis of ASTM A106 steel spheroidization and erosive wear at high temperatures

et al. 2020

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“…Different material combinations reflect different properties, and the interesting aspect of the study of cavitation is the resistances of materials towards it. Hong et al [15] from Korea investigated the cavitation erosion behavior of Alloy SA 106B carbon steel after treatment with nano TiC particles. Ultrasonic cavitation tests conducted concluded the incubation time for the TiC-modified steel was 1.64 times more than the untreated steel.…”

Section: Cavitation Erosion In Various Materials and Their Behaviormentioning

confidence: 99%

Framework for Structural Online Health Monitoring of Aging and Degradation of Secondary Systems due to some Aspects of Erosion

Gribok¹,

Patnaik²,

Williams³

et al. 2016

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This report describes the current state of research related to critical aspects of erosion and selected aspects of degradation of secondary components in nuclear power plants (NPPs). The report also proposes a framework for online health monitoring of aging and degradation of secondary components. The framework consists of an integrated multi-sensor modality system, which can be used to monitor different piping configurations under different degradation conditions. The report analyses the currently known degradation mechanisms and available predictive models. Based on this analysis, the structural health monitoring framework is proposed. The Light Water Reactor Sustainability Program began to evaluate technologies that could be used to perform online monitoring of piping and other secondary system structural components in commercial NPPs. These online monitoring systems have the potential to identify when a more-detailed inspection is needed using real-time measurements, rather than at a predetermined inspection interval. This transition to condition-based, risk-informed automated maintenance will contribute to a significant reduction of operations and maintenance costs that account for the majority of nuclear power generation costs. There is unanimous agreement between industry experts and academic researchers that identifying and prioritizing inspection locations in secondary piping systems (for example, in raw water piping or diesel piping) would eliminate many excessive in-service inspections. The proposed structural health monitoring framework takes aim at answering this challenge by combining long-range guided wave technologies with other monitoring techniques, which can significantly increase the inspection length and pinpoint the locations that degraded the most. More widely, the report suggests research efforts aimed at developing, validating, and deploying online corrosion monitoring techniques for complex geometries, which are pervasive in NPPs.

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“…Lazarova et al reported enhanced mechanical properties of P265GH steel through the dispersion of TiCN particles, and a strengthened aluminum alloy material was also obtained by this method [12,14]. Park et al conducted a series of studies on SA-106B carbon steel reinforced with TiC nanoparticles [15][16][17][18][19]. The results showed that TiC can be evenly dispersed in steel and can obtain improved steel including an increase in the cavitation erosion resistance.…”

Section: Introductionmentioning

confidence: 99%

Study on the Dissolution and Precipitation Behavior of Self-Designed (NbTi)C Nanoparticles Addition in 1045 Steel

Zhu

Xiao

et al. 2021

Metals

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Self-designed (NbTi)C nanoparticles were obtained by mechanical alloying, predispersed in Fe powder, and then added to 1045 steel to obtain modified cast steels. The microstructure of cast steels was investigated by an optical microscope, scanning electron microscope, X-ray diffraction, and a transmission electron microscope. The results showed that (NbTi)C particles can be added to steels and occur in the following forms: original ellipsoidal morphology nanoparticles with uniform dispersion in the matrix, cuboidal nanoparticles in the grain, and microparticles in the grain boundary. Calculations by Thermo-Calc software and solubility formula show that cuboidal (NbTi)C nanoparticles were precipitated in the grain, while the (NbTi)C microparticles were formed by eutectic transformation. The results of the tensile strength of steels show that the strength of modified steels increased and then declined with the increase in the addition amount. When the addition amount was 0.16 wt.%, the modified steel obtained the maximum tensile strength of 759.0 MPa, which is an increase of 52% compared with to that with no addition. The hardness of the modified steel increased with the addition of (NbTi)C nanoparticles. The performance increase was mainly related to grain refinement and the particle strengthening of (NbTi)C nanoparticles, and the performance degradation was related to the increase in eutectic (NbTi)C.

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Cavitation erosion behavior of SA 106B carbon steel after treatment of the melt with nano-sized TiC particles

Cited by 12 publications

References 31 publications

Heat treatment analysis of ASTM A106 steel spheroidization and erosive wear at high temperatures

Heat treatment analysis of ASTM A106 steel spheroidization and erosive wear at high temperatures

Framework for Structural Online Health Monitoring of Aging and Degradation of Secondary Systems due to some Aspects of Erosion

Study on the Dissolution and Precipitation Behavior of Self-Designed (NbTi)C Nanoparticles Addition in 1045 Steel

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