High performance amorphous steel coating prepared by HVOF thermal spraying

Ni, Hai; Liu, X. H.; Chang, X.C.; Hou, W.L.; Liu, W.; Wang, JQ

doi:10.1016/j.jallcom.2007.11.133

Cited by 110 publications

(37 citation statements)

References 29 publications

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“…It is well known that the corrosion resistance of the coated base materials is strongly related to the coating porosity [6][7][8][9][10][11][12][13][14][15][16]. The coating delamination and peeling off caused by corrosion is one of the most commonly encountered failure types.…”

Section: Introductionmentioning

confidence: 99%

“…Compared with non-through porosity, through-porosity demonstrates much more sensitive to the corrosion resistance as it forms direct paths between the corrosive environment and the substrate [7,8]. In recent years, a number of attempts have been made to explore the role of porosity in the corrosion behaviour of the thermally sprayed coatings [6,[9][10][11][12][13]. For the thermally sprayed Inconel 625 coating, a distinct difference between the corrosion resistance of coating and the equivalent bulk materials was observed [6].…”

Section: Introductionmentioning

confidence: 99%

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Characterisation of three-dimensional porosity in an Fe-based amorphous coating and its correlation with corrosion behaviour

et al. 2015

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Characterisation of three-dimensional porosity in an Fe-based amorphous coating and its correlation with corrosion behaviour

et al. 2015

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“…Furthermore, usual application of glassy metals includes pressure sensors for automobile industry and soft magnetic cores 1 . Recently, thermal spraying processes have been applied to produce coatings of metallic glasses in order to enhance the wear and corrosion resistance of metallic components working under severe operational condition, such as in the oil and gas industry [4][5][6][7][8][9][10][11] . In the process, a feedstock material is heated by electrical or chemical means and the spray of molten or semi-molten particles is directed or accelerated to a substrate to form the coating.…”

Section: Amorphous Metallic Alloys Applied By Thermal Spraying Processesmentioning

confidence: 99%

“…However, cold-spraying have achieved space in the aeronautic and aerospace industry, due to the low porosity achieved and high quality of the final coating 9 . Studies have investigated the metallic glass coating performance and process parameters (temperature, velocity and cooling rates) of thermal spraying process to minimize or avoid porosity, oxide inclusion and enhance coating/substrate adhesion 4,[6][7][8][9][10]12 . However, less attention has been paid to assessing the impact of these studies by understanding how research institutes and companies are organizing themselves to face the scientific and technological challenges, and which .…”

Section: Amorphous Metallic Alloys Applied By Thermal Spraying Processesmentioning

confidence: 99%

Assessing Collaboration and Knowledge Flow on Coatings of Metallic Glasses Obtained From Thermal Spraying Processes Using Bibliometrics and Science Mapping

et al. 2017

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Coatings of amorphous metallic alloys can be obtained using different thermal spraying processes, such as HVOF, plasma spraying, cold spraying and others. Although many studies focused on investigating scientific issues concerning apply amorphous metallic coatings using thermal spraying, less attention have been paid to evaluate how research institutes and companies are collaborating and influencing each other to promote new technologies. In this paper, we assessed the collaboration of organizations and the knowledge flow on this relatively new field using bibliometrics and science mapping. The method relies on scientific publications indexed in Web of Science and clustered into research areas using the CWTS Publication-level Classification System. These results provide useful insights about how players are organized and may be used in the context of R&D management, science policy and decision making.

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“…El rociado térmico es un nombre dado a un grupo de procesos usados para la deposición de revestimientos metálicos o no metálicos en varios tipos de sustratos que incluyen desde aceros hasta plásticos. El material de revestimiento puede estar en forma de polvo, barra, cordón o alambre [4].…”

Section: Introductionunclassified

Corrosión a alta temperatura de los recubrimientos metálicos NiCr y NiCrBSiFe depositados mediante proyección térmica

2015

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RESUMENSe evaluó el comportamiento de la velocidad de corrosión de los recubrimientos NiCr y NiCrBSiFe depositados mediante proyección térmica sobre láminas de acero hot rolled, sometidos a temperaturas de 400, 450, 500 y 550°C, durante 12, 24, 32 y 48 horas, la evaluación fue realizada a partir de la técnica de pérdida de peso. Se evidenció que los dos recubrimientos proyectados térmicamente forman una capa que protege el material del ambiente corrosivo que se obtiene al calentar el aire a altas temperaturas, aunque las dos aleaciones presenten dicha propiedad anticorrosiva se determinó que el comportamiento de la velocidad de corrosión de las probetas recubiertas con NiCrBSiFe fue mejor que el recubrimiento NiCr, pues el boro y silicio que contiene la aleación actúan como inhibidores de la corrosión.Palabras clave: Corrosión, alta temperatura, rociado térmico, óxidos, recubrimientos. ABSTRACTWe assessed the behavior of coatings corrosion rate NiCr and NiCrBSiFe deposited by thermal spraying on hot rolled steel sheets, this coatings has been tested at 400, 450, 500 and 550 Celsius, during 12, 24, 32 and 48 hours, the test was conducted by weight loss technique. We showed that coating produces a oxide layer and protects the substrate from high temperatures, although the two alloys have this anticorrosive property, the behavior corrosion rate of specimens coated with NiCrBSiFe is better than NiCr, because the boron and silicon act as corrosion inhibitors.Key words: Corrosion, high temperature, thermal spraying, oxides, coatings. INTRODUCCIÓNLa corrosión siempre ha tenido connotaciones negativas, usualmente es asociado al rápido deterioro de un metal pero el conocimiento de su naturaleza nos permite sacar ventaja de este fenómeno, permitiéndonos prolongar la vida útil de nuestro material ferroso en los ambientes más agrestes; la naturaleza de este fenómeno y el manejo de sus características permiten el uso de metales en ambientes agresivos con una excelente durabilidad a bajos costos con notoria reducción de actividades de mantenimiento y control [1].La iniciación del proceso corrosivo se da en el momento en que el acero queda desprotegido, y la velocidad de propagación depende del medio en el cual este sometido; aire, humedad, agua salada, atmósfera urbana, industrial y rural, vapor de agua, amoníaco, dióxido de sulfuro, vahttp://dx

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High performance amorphous steel coating prepared by HVOF thermal spraying

Cited by 110 publications

References 29 publications

Characterisation of three-dimensional porosity in an Fe-based amorphous coating and its correlation with corrosion behaviour

Characterisation of three-dimensional porosity in an Fe-based amorphous coating and its correlation with corrosion behaviour

Assessing Collaboration and Knowledge Flow on Coatings of Metallic Glasses Obtained From Thermal Spraying Processes Using Bibliometrics and Science Mapping

Corrosión a alta temperatura de los recubrimientos metálicos NiCr y NiCrBSiFe depositados mediante proyección térmica

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