Microstructure and corrosion behaviour of plain carbon steel–B 4 C composite produced by GTAW method in 3·5 wt-%NaCl solution

Abstract

In this work, the corrosion behaviour of metal matrix composite plain carbon steel–B₄C was studied in 3·5 wt-%NaCl solution. The composite was locally produced as weld band on plain carbon steel by means of gas tungsten arc welding process and using nickel as wetting agent. Samples from weld band, heat affected zone and base regions were extracted precisely, and electrochemical techniques including open circuit potential, linear polarisation resistance, electrochemical impedance spectroscopy, potentiodynamic polarisation in combination with SEM-EDX surface analysis and microhardness were used for characterisation. The results showed that hardness value of made composite increased significantly to 642 HV10. However, the corrosion resistance of composite region during 7 days (168 h) of exposure to 3·5 wt-%NaCl solution was slightly reduced. This was attributed to the fact that B₄C particles play as cathode site for oxygen reduction; therefore, they increase the corrosion rate slightly.

Keywords

Metal matrix composites Corrosion Electrochemical impedance spectroscopy Potentiodynamic polarisation SEM

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References

Katkar

V. A.

Gunasekaran

Rao

A. G.

and Koli

P. M.

: ‘Effect of the reinforced boron carbide particulate content of AA6061 alloy on formation of the passive film in seawater’ Corros. Sci. 2011 53 2700–2712.

Gladkovas

Medeliene

Samuleviciene

and Juzeliunas

: ‘Corrosion study of electroplated nickel metal-matrix composites B₄C, Al₂O₃ and SiC’ Chemija 2002 13 36–40.

Radev

D. D.

Zakhariev

Z. T.

and Marinitch

M. A.

: ‘Corrosion resistance of B₄C-Me_xB_y composite materials’ J. Alloys Compd 1993 196 93–96.

Siniawski

M. T.

Harris

S. J.

Wang

and Liu

: ‘Wear initiation of 52100 steel sliding against a thin boron carbide coating’ Tribol. Lett. 2003 15 29–41.

Mingchao

Zuoguang

Zhijie

and Min

: ‘Effect of fiber type on mechanical properties of short carbon fiber reinforced B₄C composites’ Ceram. Int. 2009 35 1461–1466.

Alizadeh

Taheri-Nassaj

and Hajizamani

: ‘Hot extrusion process effect on mechanical behavior of stir cast Al based composites reinforced with mechanically milled B4C nanoparticles’ J. Mater. Sci. Technol. 2011 27 1113–1119.

Medeliene

: ‘The influence of B₄C and SiC additions on the morphological, physical, chemical and corrosion properties of Ni coatings’ Coat. Technol. 2002 154 104–111.

Eckardta

Bewilogua

van der Kolk

Hurkmans

Trinh

and Fleischer

: ‘Improving tribological properties of sputtered boron carbide coatings by process modifications’ Surf. Coat. Technol. 2000 126 69–75.

Zhang

Gao

Lia

Yang

and Yin

: ‘TiAl/B₄C marine material-fabrication, mechanical and corrosion properties’ Ceram. Int. 2011 37 783–789.

10.

Singh

S. K.

and Mukherjee

A. K.

: ‘Kinetics of mild steel corrosion in aqueous acetic acid solutions’ J. Mater. Sci. Technol. 2010 26 264–269.

11.

Araghi

and Paydar

M. H.

: ‘Electroless deposition of Ni–P–B₄C composite coating on AZ91D magnesium alloy and investigation on its wear and corrosion resistance’ Mater. Des. 2010 31 3095–3099.

12.

Ding

Hawthorn

G. A.

and Hihara

L. H.

: ‘Inhibitive effect of seawater on the corrosion of particulate-reinforced aluminum-matrix composites and monolithic aluminum alloy’ J. Electrochem. Soc. 2009 156 C352–C359.

13.

Guedes Soares

Garbatov

and Zayed

: ‘Effect of environment factors on steel plate corrosion under marine immersion conditions’ Corros. Eng. Sci. Technol. 2011 46 524–541.

14.

Cheng

Chen

Quan

Zhao

and Niu

: ‘The influence of hydrogen sulfide on corrosion of iron under different conditions’ Corros. Sci. 2000 42 1669–1683.

15.

McCafferty

: ‘Introduction to corrosion science’575; 2010

Washington, DC

Springer Science.

16.

Danaee

Niknejad Khomami

and Attar

A. A.

: ‘Corrosion of AISI 4130 steel alloy under hydrodynamic condition in ethylene glycol + water + NO⁻ ₂ solution’ J. Mater. Sci. Technol. 2013 29 89–96.

17.

Han

Gallant

and Chen

X. G.

: ‘Investigation on corrosion behavior of the Al-B₄C metal matrix composite in a mildly oxidizing aqueous environment’ Corrosion 2011 67 1150051–11.

18.

Ding

and Hihara

L. H.

: ‘Electrochemical examinations on the corrosion behavior of boron carbide reinforced aluminum-matrix composites’ J. Electrochem. Soc. 2011 158 C118–C124.