Characterization of Fe<sub>2</sub>B layers on ASTM A1011 steel and modeling of boron diffusion-Reference-Cited by-同舟云学术

Characterization of Fe₂B layers on ASTM A1011 steel and modeling of boron diffusion

Published:2022-01-01 Issue:1 Volume:64 Page:55-66
ISSN:0025-5300
Container-title:Materials Testing
language:en
Short-container-title:

Author:

Morgado-González Irving¹,Ortiz-Dominguez Martin²,Keddam Mourad³

Affiliation:

1. Autonomous University of Hidalgo State , Mexico , Mexico

2. Mechanical Engineering , Escuela Superior de Ciudad Sahagún-Mechanical Engineering , Carretera Cd. Sahagún-O tumba s/n, Zona Industrial, Hidalgo, Mexico , Ciudad Sahagún , HGO , 42110 , Mexico

3. SDM , USTHB , B.P. 32 El Alia Bab Ezzouar Algiers , Algiers 16000 , Algeria

Abstract

Abstract In this work, the ASTM A1011 steel substrate has been pack-boronized in the interval of 1123–1273 K for 2–8 h. With the used powders mixture (33.5 wt.% B4C, 5.4 wt.% KBF4 and 61.1 wt.% SiC), the iron boride layers were formed on this steel. The boronized layer/matrix was characterized by a jagged morphology. X-ray diffraction technique was used in order to identify the presence of iron boride phase. Tribological studies were also undertaken to assess the interfacial adherence of boride layer to the substrate and the values of coefficient of friction (COF) for borided and unborided samples. In addition, the mean diffusion coefficient approach was employed to estimate the diffusivity of boron in Fe2B. Moreover, this diffusion model has been verified empirically by using an extra boriding condition (at 1248 K for 2 h).

Publisher

Walter de Gruyter GmbH

Subject

Mechanical Engineering,Mechanics of Materials,General Materials Science

Link

https://www.degruyter.com/document/doi/10.1515/mt-2021-2007/pdf

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