Boriding Treatment of Low Alloy Steels: Effect of Holding Time and Temperature

Abstract:

Boriding is a thermochemical treatment that can be applied to improve the mechanical and chemical properties of steels by surface modification while stilling adequate substrate properties. This kind of treatment is widely used to protect the degradation of the mechanical parts’ surface against wear. The boride atoms introduced into the steel can produce a hard metallic compound formed by diffusion and precipitation. The present study has been conducted in order to obtain an iron borides layer on two types of steel substrates 16NC6 and 20MC5 by using a powder consisting of B4C, NaBF4 and, SiC. The solid boriding treatment was carried out in an electric furnace heated to 950°C for three holding times of 2h, 4h and, 6h. The present research work focuses an the effect studying of holding time as a parameter on the thickness, structure, morphology, and hardness of layers obtained on low carbon steels by the case boriding. As confirmed by structure and microstructure characterization, the hard boride layers produced form two phases of FeB and Fe2B.

• Periodical: Materials Science Forum (Volume 1078)
• Pages: 103-110
• DOI: https://doi.org/10.4028/p-j52726
• Online since: December 2022
• Authors: Younès Kermiche, Younès Benarioua*
• Keywords: Boriding, Boron, Coating, Iron Boride, Steel

References

[1] P. A. Dearnley and T. Bell; Engineering the surface with boron based material; Surface Engineering 1985 Vol. 1 No.3 203-218.

[2] O. Allaoui, N. Bouaouadja, G. Saindernan; Characterization of boronized layers on a XC38 steel. Surf. Coat. Tech. 2006, 201, 3475–3482.

DOI: 10.1016/j.surfcoat.2006.07.238

[3] M. Keddam, S.M. Chentouf, A diffusion model for describing the bilayer growth FeB/Fe2B during the iron pow-der-pack boriding. Appl. Surf. Sci. 2005, 252, 393–399.

DOI: 10.1016/j.apsusc.2005.01.016

[4] R. Boubaayaa, Y. Benarioua, O. Allaouia and M. Djendela; Production of chromium boride layers on carbon steel with conversion treatment: chromium deposition + diffusion annealing ; Acta Physica Polonica A (2017) Vol. 132 No. 3 541-543.

DOI: 10.12693/aphyspola.132.541

[5] M. Keddam, M Ortiz-Domíguez, I. Campos-Silva, J. Martínez-Trinidad; A simple model for the growth kinetics of Fe2B iron boride on pure iron substrate. Appl. Surf. Sci. 2010, 256, 3128– 3132.

DOI: 10.1016/j.apsusc.2009.11.085

[6] V. Jain, G. Sundararajan ; Influence of the pack thickness of the boronizing mixture on the boriding of steel. Surf. Coat. Tech. 2002, 149, 21–26.

DOI: 10.1016/s0257-8972(01)01385-8

[7] K Rayane, O Allaoui, A Allaoui ; Effect of diffusion annealing on borides layers produced on XC38 steel ; Acta Physica Polonica A 2017, Vol. 132 N.3 , 521-523.

DOI: 10.12693/aphyspola.132.521

[8] C.I. VillaVelázquez-Mendoza, J.L. Rodríguez-Mendoza; Effect of substrate roughness time and temperature on the processing of iron boride coatings: experimental and statistical approaches ; Int. J. Surface Science and Engineering, Vol. 8, No. 1, 2014 71-91.

DOI: 10.1504/ijsurfse.2014.059315

[9] D. Bricín, A. Kříž ; Influence of the Boriding Process on the Properties and the Structure of S265 Steel and X6CrNiTi18-10 Steel; Manufacturing Technology 2021, Vol. 21, No. 1 37-44.

DOI: 10.21062/mft.2021.003

[10] P.A Ruiz-Trabolsi, J.C Velázquez, C. Orozco-Álvarez, R. Carrera-Espinoza, J.A. Yescas Hernández, E.González-Arévalo, E. Hernández-Sánchez ; Kinetics of the boride layers obtained on AISI 1018 steel by considering the Amount of matter involved. Coatings 2021, 11, 259. 1-17.

DOI: 10.3390/coatings11020259

[11] M. Tabur M. Izciler, F. Gul, I. Karacan ; Abrasive wear behavior of boronized AISI 8620 steel. Wear 2009 , 266, 1106–1112.

DOI: 10.1016/j.wear.2009.03.006

[12] S. Sen, U. Sen, C. Bindal ; The growth kinetics of borides formed on boronized AISI 4140 steel. Vacuum 2005, 77, 195–202.

DOI: 10.1016/j.vacuum.2004.09.005

[13] L. G. Yu, X. J. Chen, K. A. Khor, G. Sundararajan ; FeB/Fe2B phase 53, 2361–2368.

[14] J. H. Yoon, Y. K. Jee, S. Y. Lee ; Plasma paste boronizing treatment of the stainless steel AISI 304 ; Surf Coat Technol. 1999, 112, 71–75.

DOI: 10.1016/s0257-8972(98)00743-9

[15] I. Campos, G. Ramirez, U. Figuero, J. Martinez, O. Morales ; Evaluation of boron mobility on the phases FeB, Fe2B and diffusion zone in AISI 1045 and M2 steels. Appl. Surf. Sci. 2007, 253, 3469–3475.

DOI: 10.1016/j.apsusc.2006.07.046

[16] G. Kartal, O. L. Eryilmaz, G. Krumdick, A. Erdemir, S. Timur Kinetics of electrochemical boriding of low carbon steel. Appl. Surf. Sci. ; 2011, 257, 6928–6934.

DOI: 10.1016/j.apsusc.2011.03.034

[17] I. Campos-Silva, M. Ortiz-Domínguez, O. BravoBárcenas, M.A. Doñu-Ruiz, D. Bravo- Bárcenas, C. Tapia-Quintero, M.Y. Jiménez-Reyes, Surf. Coat. Technol. 205, 403 (2010).

DOI: 10.1016/j.surfcoat.2010.06.068

[18] I. Campos-Silva, M. Ortiz-Domínguez, C. TapiaQuintero, G. Rodríguez-Castro, M.Y. Jiménez-Reyes, E. Chávez-Gutiérrez, J. Mater. Eng. Perform. 21, 1714 (2012).

DOI: 10.1007/s11665-011-0088-9

[19] M. Kulka, N. Makuch, A. Pertek, L. Maldzinski, J. Solid State Chem. 199, 196 (2013).

[20] E. Chavez-Gutiérrez, M.Sc. Thesis, IPN, Mexico 2012 (in Spanish).

[21] M. Keddama, Z. Nait Abdellaha, M. Kulka, R. Chegroune; Determination of the Diffusion Coefficients of Boron in the FeB and Fe2B Layers Formed on AISI D2 Steel; Acta Physica Polonica A Vol. 128 (2015) 740-746.

DOI: 10.12693/aphyspola.128.740

[22] I. Gunes; Kinetics of borided gear steels; Sādhanā 2013, Vol. 38, Part 3, 527–541.

DOI: 10.1007/s12046-013-0138-0