Improved corrosion response of squeeze-cast SiC nanoparticles reinforced AZ91-2.0Ca-0.3Sb alloy

被引：25

作者：

Ganguly, Sourav ^{[1
]}

Mondal, A. K. ^{[2
]}

Sarkar, Smarajit ^{[1
]}

Basu, A. ^{[1
]}

Kumar, S. ^{[3
]}

Blawert, Carsten ^{[4
]}

机构：

[1] Natl Inst Technol, Dept Met & Mat Engn, Rourkela 769008, India

[2] BHU, Dept Met Engn, Indian Inst Technol, Varanasi 221005, Uttar Pradesh, India

[3] Indian Inst Sci, Dept Met Engn, Bangalore 560012, Karnataka, India

[4] Helmholtz Zentrum Geesthacht, Inst Mat Res, Magnesium Innovat Ctr MagIC, Max Planck Str 1, D-21502 Geesthacht, Germany

来源：

CORROSION SCIENCE | 2020年 / 166卷

关键词：

AZ91 magnesium alloy; Nanocomposite; Volta potential; Hydrogen evolution; Potentiodynamic polarization scan; Surface topography; MAGNESIUM ALLOYS; ATMOSPHERIC CORROSION; CARBON NANOTUBES; BEHAVIOR; MICROSTRUCTURE; COMPOSITES; AZ91; NACL; ND;

D O I：

10.1016/j.corsci.2020.108444

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The present work investigates the effect of SiC nanoparticle additions on corrosion response of the squeeze-cast AZ91 + 2.0Ca + 0.3Sb (wt.%) alloy subjected to immersion, hydrogen evolution, and potentiodynamic polarization scan in a 0.1 M NaCl solution. All the AZ91 + 2.0Ca + 0.3Sb + xSiC(np) (x = 0.5, 1.0, 2.0 (wt.%)) nano composites demonstrate a superior corrosion resistance than the alloy, and the nanocomposite reinforced with 2.0SiC(np) exhibits the highest corrosion resistance. The improved corrosion performance of the nanocomposites is attributed to the decrease in the potential difference between alpha-Mg and beta-Mg17Al12 phases, reduced quantity of beta-Mg17Al12 phase, and an increased amount of Al2Ca phase following SiC nanoparticles additions.

引用

页数：15

共 51 条

[1] Corrosion relationships as a function of time and surface roughness on a structural AE44 magnesium alloy
Alvarez, Roxanna B.
Martin, Holly J.
Horstemeyer, M. F.
Chandler, Mei Q.
Williams, Neil
Wang, Paul T.
Ruiz, Augusto
[J]. CORROSION SCIENCE, 2010, 52 (05) : 1635 - 1648
[2] Corrosion behaviour of AZ91D and AM50 magnesium alloys with Nd and Gd additions in humid environments
Arrabal, R.
Matykina, E.
Pardo, A.
Merino, M. C.
Paucar, K.
Mohedano, M.
Casajus, P.
[J]. CORROSION SCIENCE, 2012, 55 : 351 - 362
[3] Correlation of Microstructure and Electrochemical Corrosion Behavior of Squeeze-Cast Ca and Sb Added AZ91 Mg Alloys
Bankoti, A. K. S.
Mondal, A. K.
Perugu, Chandra S.
Ray, B. C.
Kumar, S.
[J]. METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2017, 48A (10): : 5106 - 5121
[4] Scanning kelvin probe force microscopy -: A useful tool for studying atmospheric corrosion of MgAl alloys in situ
Blücher, DB
Svensson, JE
Johansson, LG
Rohwerder, M
Stratmann, M
[J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2004, 151 (12) : B621 - B626
[5] Chan WM, 1998, CORROS REV, V16, P43
[6] Properties of magnesium alloys reinforced with nanoparticles and carbon nanotubes: a review
Dieringa, Hajo
[J]. JOURNAL OF MATERIALS SCIENCE, 2011, 46 (02) : 289 - 306
[7] Fundamentals and advances in magnesium alloy corrosion
Esmaily, M.
Svensson, J. E.
Fajardo, S.
Birbilis, N.
Frankel, G. S.
Virtanen, S.
Arrabal, R.
Thomas, S.
Johansson, L. G.
[J]. PROGRESS IN MATERIALS SCIENCE, 2017, 89 : 92 - 193
[8] On the microstructure and corrosion behavior of AZ91/SiC composites produced by rheocasting
Esmaily, M.
Mortazavi, N.
Svensson, J. E.
Halvarsson, M.
Jarfors, A. E. W.
Wessen, M.
Arrabal, R.
Johansson, L. G.
[J]. MATERIALS CHEMISTRY AND PHYSICS, 2016, 180 : 29 - 37
[9] Corrosion product layers on magnesium alloys AZ31 and AZ61: Surface chemistry and protective ability
Feliu, S., Jr.
Llorente, I.
[J]. APPLIED SURFACE SCIENCE, 2015, 347 : 736 - 746
[10] Correlation between the surface chemistry and the atmospheric corrosion of AZ31, AZ80 and AZ91D magnesium alloys
Feliu, S., Jr.
Pardo, A.
Merino, M. C.
Coy, A. E.
Viejo, F.
Arrabal, R.
[J]. APPLIED SURFACE SCIENCE, 2009, 255 (07) : 4102 - 4108

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