Erosion–Corrosion Resistance of Laser Surface Alloying of NbC Thermal Spray Coatings on AISI 304L Steel

Fals, Hipólito Carvajal; Roca, Ángel Sánchez; Fogagnolo, João Batista; Fanton, Leonardo; Belém, Maria Júlia Xavier; Lima, Carlos Roberto Camello

doi:10.1007/s11666-019-00973-y

Cited by 13 publications

(5 citation statements)

References 25 publications

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“…In Equation (3), ε is a constant related to the shape of the indenter, which is 0.75 in this work. The contact area was calculated by Equation (4).…”

Section: Materials Characterizationmentioning

confidence: 99%

“…Therefore, it is necessary to enhance the antiwear properties of the contact surfaces to prevent them from experiencing dry frictional wear. Many solutions have been proposed to address this issue, such as surface alloying [4], surface coating [5,6], surface texturing [7,8], and surface nanocrystallization [9,10]. Surface texturing has emerged as a promising solution in recent decades [11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

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Micromorphology, Microstructure, and Wear Behavior of AISI 1045 Steels Irregular Texture Fabricated by Ultrasonic Strengthening Grinding Process

Xiao

Zhao

Xie

et al. 2022

Metals

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In this study, the tribological properties of three AISI 1045 steel samples were investigated. Two samples were treated with ultrasonic shot peening (USP) and ultrasonic strengthening grinding process (USGP), respectively, while the other one was only treated with a polishing process. Sample properties, such as surface morphology, roughness, microhardness, elastic modulus, frictional coefficient, and phase structures were analyzed. Results show that the sample treated with USGP had the best tribological properties. It realized the highest surface roughness, microhardness, and elastic modulus. Compared with a polished sample, the roughness of the sample treated with USGP increased by 157%, and the microhardness and elastic modulus improved by 32.8% and 21.3%, respectively. Additionally, USGP provided an average frictional coefficient of 0.4, decreasing approximately 45% compared to polishing. The possible mechanisms of USGP surface texturing were discussed. The findings denote that USGP could be an efficient approach to improve the fatigue life of some mechanical components.

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“…In Equation (3), ε is a constant related to the shape of the indenter, which is 0.75 in this work. The contact area was calculated by Equation (4).…”

Section: Materials Characterizationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Micromorphology, Microstructure, and Wear Behavior of AISI 1045 Steels Irregular Texture Fabricated by Ultrasonic Strengthening Grinding Process

Xiao

Zhao

Xie

et al. 2022

Metals

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show abstract

“…Nevertheless, the significant expansion of the technology did not occur until after the World War II, when powder spraying and plasma spray were developed and introduced. Many improvements in these processes have been made since then [100], but the basic operating principles remain unchanged [101][102][103][104][105]. Figure 9 shows the global thermal spray coating (TSP) equipment.…”

Section: Thermal Spray Processmentioning

confidence: 99%

Functionally graded materials (FGMs): A review of classifications, fabrication methods and their applications

Mohammadi

Rajabi

Ghadiri

2021

PAC

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Functionally graded materials (FGMs) are new materials whose properties change gradually in respect to their dimensions. This group of materials shows a tremendous improvement of previously used composite materials. FGM consists of two or more materials whose combination enables the achievement of specified properties in accordance with the desired application. The article gives an overview of different classifications, various fabrication methods and applications of the FGMs. It could also provide insight and perspective for researchers, university students and research and development teams since it has brought together diverse aspects of FGMs. As mentioned in section two, we took all FGMs fabrication methods under consideration, giving the reader an insight into how to make a product while satisfying the conditions of financial and mechanical efficiency. The classification section specifically goes over structures, types of gradients, sizes/scales, state of matter and finishes with the manufacturing processes. Section two deep dives into the fabrication methods used in the FGMs, which are divided into three sub-sections, including gas-based, liquid-based and solid-based. Lastly, various applications of the FGMs in different fields and industries, namely aerospace, energy, medicine, military, manufacturing and eventually other applications, are demonstrated.

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“…Esta influência da combinação dos elementos de liga na resistência à corrosão em revestimentos aspergidos termicamente já foi reportado por alguns trabalhos [19,[31][32][33][34][35]. Esses autores verificaram também, que a presença dos defeitos (trincas, poros e redes de óxidos) comprometeram a resistência à corrosão dos revestimentos, mostrando a importância dos ajustes dos parâmetros operacionais de aspersão e a combinação de elementos de liga, quando se deseja associar resistência mecânica e resistência à corrosão.…”

Section: Média Desvio Padrãounclassified

Aspectos microestruturais e de resistência a corrosão de ligas Fe-Cr e Fe-Co aspergidas termicamente por arco elétrico

et al. 2021

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RESUMO Este trabalho teve como objetivo quantificar e avaliar através de técnicas de análise e processamento digital de imagens (PDI) defeitos formados em revestimentos metálicos à base de ligas ferro-cromo e ferro-cobalto, obtidas por aspersão térmica à arco elétrico (AT). Imagens obtidas por microscopia óptica (MO) foram processadas e analisadas utilizando-se o software FIJI (Image J) para quantificação de poros, redes de óxidos e trincas. Também foram feitas medidas de microdureza Vickers (HV) e testes de corrosão segundo a norma ASTM-G48. Foram realizados dois testes de corrosão em meio de cloreto férrico: um expondo-se apenas o revestimento, onde a resistência a corrosão foi avaliada qualitativamente através de imagens de MO e a possível presença de pites de corrosão e outro expondo-se o conjunto revestimento e substrato, neste caso, a resistência a corrosão foi avaliada quantitativamente através de medidas na espessura da camada de revestimento antes e depois da exposição. Foi realizada uma avaliação microestrutural por MO e microscopia eletrônica de varredura (MEV). Os resultados obtidos por MO, MEV e microdureza indicaram uniformidade nas camadas depositadas e porcentagem de defeitos variando entre 3,7% e 4,3% para os revestimentos estudados. Todos mostraram possuir excelente resistência à corrosão em meio de cloreto férrico, que é considerado agressivo aos aços inoxidáveis, exceto para a liga de revestimento à base de ferro-cobalto quando encontrou-se combinada ao cobre e com o substrato também exposto ao meio corrosivo

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Erosion–Corrosion Resistance of Laser Surface Alloying of NbC Thermal Spray Coatings on AISI 304L Steel

Cited by 13 publications

References 25 publications

Micromorphology, Microstructure, and Wear Behavior of AISI 1045 Steels Irregular Texture Fabricated by Ultrasonic Strengthening Grinding Process

Micromorphology, Microstructure, and Wear Behavior of AISI 1045 Steels Irregular Texture Fabricated by Ultrasonic Strengthening Grinding Process

Functionally graded materials (FGMs): A review of classifications, fabrication methods and their applications

Aspectos microestruturais e de resistência a corrosão de ligas Fe-Cr e Fe-Co aspergidas termicamente por arco elétrico

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