Abrasive wear resistance of boronized carbon and low-alloy steels

Béjar, M.A.; Moreno, Eduardo Araya

doi:10.1016/j.jmatprotec.2005.12.006

Cited by 110 publications

(63 citation statements)

References 11 publications

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“…Mobility of hydrogen in metal lattices is greatly investigated subject [37]. Due to the relatively small size of boron it also easily diffuses into a variety of metals, including ferrous, nickel and cobalt alloys [38,39]. In Run 2, beyond these phases TiB was also detected as an orthorhombic phase.…”

Section: Powder Characterizationmentioning

confidence: 99%

Effect of the solid precursors on the formation of nanosized TiBx powders in RF thermal plasma

Klébert

Keszler

Sajó

et al. 2014

Ceramics International

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Continuous synthesis of TiB x (x≈0.5-2) nanoparticles from various low cost solid precursors such as titanium and titanium dioxide admixed with boron and/or carbon in radiofrequency thermal plasma was studied. Feasibility of TiB 2 formation was predicted by thermodynamic equilibrium calculations in the 500 -7500 K temperature range. In all the investigated system high temperature reactions yielded nanometer-sized TiB x powders with a mean size varying between 13 and 83 nm. Among the synthesized products in addition to TiB x , oxidized precursor residues were also found in smaller quantities. Although addition of carbon to the precursors could not completely prevent surface oxidation of boride particles, it contributed to the reduction of the mean particle size of the formed TiB 2 .

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Section: Powder Characterizationmentioning

confidence: 99%

Effect of the solid precursors on the formation of nanosized TiBx powders in RF thermal plasma

Klébert

Keszler

Sajó

et al. 2014

Ceramics International

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“…The boronized ferrous alloys, for example, have substantially higher hardness compared to carburized or nitrided steels [9]. The boronized steels have an excellent wear resistance [10][11][12][13][14]. Furthermore, these materials exhibit a good resistance to chemical attack by molten metals, nonoxidizing acids, alkaline and saline solutions [15][16][17][18].…”

Section: Introductionmentioning

confidence: 99%

Oxidation stability of boride coatings

Ptačinová¹,

Drienovský²,

Palcut³

et al. 2016

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In this work, plain, low carbon steel S235JRG1 was boronized at 1273 K for 45-150 min by using a Durborid powder. The microstructure, phase constitution and oxidation behavior of the resulting boride layers have been investigated. Layers with an average thickness of 76-123 µm have been produced. The boride layer has a distinct tooth-like microstructure. It is composed of Fe2B and FeB in unequal amounts. The boride layer oxidation behavior has been investigated by a simultaneous thermal analysis in a flowing synthetic air at 873-1173 K for 21-24 h. A parabolic oxidation of the boride layer has been observed. The rate constants are found between 1.039 × 10 −9 to 3.781 × 10 −6 kg 2 m −4 s −1 , depending on temperature and oxidation time. The activation energy of oxidation at temperatures below 1173 K has been estimated to be 93 kJ mol −1 . At 1173 K, two successive parabolic periods have been found, followed by a breakaway oxidation behavior. The oxide scale of the boronized steel is composed of different iron oxides and iron borates. The oxidation mechanisms of boride coatings are discussed and implications towards high temperature stability are provided.K e y w o r d s : boronizing, high temperature oxidation, X-ray diffraction, thermogravimetric analysis

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“…El borado superficial, como es conocido, es un tratamiento termoquímico en el cual los átomos de boro se difunden hacia el interior de la superficie del material formando boruros de diferentes naturalezas y a los que se les atribuyen una alta dureza, resistencia al desgaste abrasivo y adhesivo de la superficie modificada [13][14]. El borado puede ser aplicado a un rango amplio de materiales que incluyen aceros [15][16][17], hierros fundidos [18], cermets [19], aleaciones de WC-Co hasta limitados niveles de Co (8%) y d WC (2 μm) [3,20].…”

Section: Introductionunclassified

Influencia de la microestructura en el comportamiento tribológico de carburos cementados (WC-Co) borados

et al. 2015

Ingeniare. Rev. chil. ing.

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Abrasive wear resistance of boronized carbon and low-alloy steels

Cited by 110 publications

References 11 publications

Effect of the solid precursors on the formation of nanosized TiBx powders in RF thermal plasma

Effect of the solid precursors on the formation of nanosized TiBx powders in RF thermal plasma

Oxidation stability of boride coatings

Influencia de la microestructura en el comportamiento tribológico de carburos cementados (WC-Co) borados

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