Properties of Boride Layer on Boridesae 1035 Steel by Molten Salt

Alaeddine Kaouka; Omar Allaoui; Mourad Keddam

doi:10.4028/www.scientific.net/AMM.467.116

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 467Properties of Boride Layer on Boridesae 1035 Steel...

Properties of Boride Layer on Boridesae 1035 Steel by Molten Salt

Abstract:

Properties of borided SAE 1035 steel have been investigated during boriding treatment, which was carried out in slurry salt bath at temperature range from1073 to 1273K for 2, 4 and 8 h. The presence of both FeB and Fe₂B phases formed on the surface of steel substrate was confirmed by X-ray diffraction. Scanning electron microscopy (SEM) and optical microscopy examinations showed that boride layers have saw-tooth and columnar morphology. It has been shown that the thickness of boride layers increased when the time and temperature process increased, its value ranged from 20 to 387 μm. The hardness value of the boride layer was about 1760±200 HV_0.1, while the hardness of un-borided steel was about 225±20 HV_0.1. The kinetic studies showed a parabolic relationship between layer thickness and process time. Depending on temperature and layer thickness.

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Applied Mechanics and Materials (Volume 467)

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116-121

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https://doi.org/10.4028/www.scientific.net/AMM.467.116

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Online since:

December 2013

Authors:

Alaeddine Kaouka*, Omar Allaoui, Mourad Keddam

Keywords:

Boride Layer, Growth Kinetics, Molten Salt, SAE 1035 Steel

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