Effect of the anisotropic growth on the fracture toughness measurements obtained in the Fe2B layer

Hernández-Sánchez, Enrique; Rodríguez-Castro, G.A.; Meneses-Amador, A.; Bravo-Bárcenas, D.; Arzate-Vázquez, I.; Martínez‐Gutiérrez, Hugo; Romero-Romo, M.; Campos-Silva, I.

doi:10.1016/j.surfcoat.2013.09.064

Cited by 30 publications

(17 citation statements)

References 25 publications

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“…The layer does not have a uniform thickness, as illustrated in Figure 1 in this paper. Moreover, the sawtooth-like morphology of the boride layers can be observed in Figure 1 of reference [11], Figure 2 of reference [12], and Figure 8 of reference [1]. All of that Figures illustrate a classical sawtooth-like morphology, with its non-uniform layer thickness that is dependent on the treatment duration.…”

Section: Boride Layer Formation On Carbon Steelmentioning

confidence: 85%

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A Stochastic Model and Investigation into the Probability Distribution of the Thickness of Boride Layers Formed on Low-Carbon Steel

et al. 2019

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The stochastic nature of the thickness of boride layers formed on carbon steel is described in this paper. Additionally, the probability distribution of the layer thickness is studied to determine the best-fit probability distribution. The study combines the use of an empirical model (power-law) and the Markov chain principles, with the purpose of demonstrating that it is feasible to develop a model that represents the non-uniformity of the thickness of boride layers that form on carbon steel. The results indicate that the mean and variance tend to increase when the time or temperature is increased. The findings of this paper demonstrate that an analytical solution to the Kolmogorov’s system differential equation can adequately represent the behavior of non-uniform boride layer formed on low-carbon steel, regardless of the temperature or duration of treatment.

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Section: Boride Layer Formation On Carbon Steelmentioning

confidence: 85%

“…Coatings 2019, 9, x FOR PEER REVIEW 3 of 21 [11], Figure 2 of reference [12], and Figure 8 of reference [1]. All of that Figures illustrate a classical sawtooth-like morphology, with its non-uniform layer thickness that is dependent on the treatment duration.…”

Section: Mathematical Foundationmentioning

confidence: 95%

A Stochastic Model and Investigation into the Probability Distribution of the Thickness of Boride Layers Formed on Low-Carbon Steel

et al. 2019

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“…Second, the saw-tooth interface morphology is reduced due to Cr and Ni elements compared of low carbon steels, causing the adherence between the phases to decrease. Third, the magnitude of the tensile residual stresses promotes crack growth coupled with the low fracture toughness of the FeB phase whose value fell within the range of 1.48-3.02 MPa m [26] causing the early onset of cohesive damage. The mechanisms of damage and determined critical loads are particular cases of each layer/substrate system.…”

Section: Scratch Testsmentioning

confidence: 99%

Damage Mechanisms in AISI 304 Borided Steel: Scratch and Daimler-Benz Adhesion Tests

et al. 2015

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In this study, damage mechanisms in the FeB/Fe 2 B coatings formed on the surface of AISI 304 steel are determined by adhesion tests. First, the boriding of the AISI 304 steel was carried out through the powder-pack method at 1223 K in the range from 2-10 h of exposure time. After treatment, Berkovich depth-sensing indentation test were conducted; the result showed tensil and compressive residual stresses in the FeB and Fe 2 B, respectively. The adhesion of borided steels was evaluated by the Daimler-Benz Rockwell-C and scratch test. Based on the scratch tracks, the chipping was the predominant mechanism at 2 and 6 h, with critical loads of 35 and 43 N, respectively; while spalliation was determined at 27 N for 10 h. Also, hertzian and tensil cracks, buckling and compressive delamination were determined in the AISI 304 borided steel by scanning electron microscope.

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“…26,27 Thus, more microcracks may be produced vertical to the [002] orientation under a deformation process. 26,30 Many investigations were carried out to investigate the large inherent brittleness perpendicular to the [002] orientation and sensibility of microcracking because of the weaker B-B covalent bond and bounding energy as well as the interaction of iron and boron atoms, which also results from the spatial heterogeneous distribution of Fe and B atoms in Fe 2 B lattice. 26,27,31,32 Therefore, bulk Fe 2 B intermetallic with various orientations displays strongly anisotropy.…”

Section: Resultsmentioning

confidence: 99%

Effect of crystal orientation on microstructure and properties of bulk Fe₂B intermetallic

et al. 2015

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The effects of Fe 2 B-grain orientation on microstructure and properties of bulk Fe 2 B intermetallic fabricated by directional and ordinary solidification techniques have been investigated. The results show that unidirectional solidified Fe 2 B intermetallic possesses a strong (002) texture in the transverse direction owing to the opposite unidirectional heat-squeeze effect while random Fe 2 B grains can be produced under ordinary solidification conditions. The nonoriented Fe 2 B intermetallic has the highest linear expansion coefficient of 13.04 Â 10 À6°CÀ1 while the microhardness and fracture toughness of transverse Fe 2 B intermetallic in the (002) plane are larger than those of Fe 2 B with other grain orientations and their values are ;18.72 GPa and 6.42 MPaÁm 1/2 , respectively. Liquid zinc corrosion results indicate that unidirectional Fe 2 B intermetallic with long axis perpendicular to the direction of liquid zinc corrosion displays the best corrosion resistance to liquid zinc owing to its beneficial barrier effect. The FeB transition phase can naturally form and grow parabolically during liquid zinc corrosion.

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Effect of the anisotropic growth on the fracture toughness measurements obtained in the Fe2B layer

Cited by 30 publications

References 25 publications

A Stochastic Model and Investigation into the Probability Distribution of the Thickness of Boride Layers Formed on Low-Carbon Steel

A Stochastic Model and Investigation into the Probability Distribution of the Thickness of Boride Layers Formed on Low-Carbon Steel

Damage Mechanisms in AISI 304 Borided Steel: Scratch and Daimler-Benz Adhesion Tests

Effect of crystal orientation on microstructure and properties of bulk Fe₂B intermetallic

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Effect of the anisotropic growth on the fracture toughness measurements obtained in the Fe2B layer

Cited by 30 publications

References 25 publications

A Stochastic Model and Investigation into the Probability Distribution of the Thickness of Boride Layers Formed on Low-Carbon Steel

A Stochastic Model and Investigation into the Probability Distribution of the Thickness of Boride Layers Formed on Low-Carbon Steel

Damage Mechanisms in AISI 304 Borided Steel: Scratch and Daimler-Benz Adhesion Tests

Effect of crystal orientation on microstructure and properties of bulk Fe2B intermetallic

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Effect of crystal orientation on microstructure and properties of bulk Fe₂B intermetallic