Influence of Heat Treatment on the Microstructure and Corrosion Behavior of Thixo-cast Mg-Y-Nd-Zr

Journal of Materials Engineering and Performance - Tập 29 - Trang 6181-6195 - 2020
Z. Szklarz1, Ł. Rogal2
1Department of Chemistry and Corrosion of Metals, Faculty of Foundry Engineering, AGH-University of Science and Technology, Cracow, Poland
2Institute of Metallurgy and Materials Science, Polish Academy of Sciences, Cracow, Poland

Tóm tắt

The influence of semisolid metal processing (SSM, also called thixoforming) and T6 heat treatment (HT) on the microstructure and corrosion behavior in chlorides of Mg-Y-Nd-Zr (WE43B) magnesium alloy was investigated. The as-cast microstructure is composed of α-Mg grains with the size of 52.8 ± 1.9 μm surrounded by eutectic precipitations enriched in rare-earth elements (Y, Nd). The thixo-cast microstructure contained α-Mg globular grains with the size of 65.5 ± 2.1 μm surrounded by a fine eutectic mixture in the volume of 26.6%. The T6 HT (heat treatment and saturation at 525°C/5 h, cooling in H2O and aging at 190°C/48 h) caused an increase of yield strength to 180 MPa and tensile strength to 280 MPa at the hardness 105 ± 4 HV5. Next, the electrochemical response was investigated in 0.1 M NaCl using the global and local LSV (linear sweep voltammetry) and EIS (electrochemical impedance spectroscopy) methods. The EIS method suggests the same mechanism for the processes occurring at the electrode/electrolyte interface and shows higher values of the polarization resistances of treated samples after 24-h immersion tests. In particular, better corrosion resistance in chlorides is observed in the alloy after SSM compared to the SSM/HT specimen, which has also been confirmed by the LSV tests performed after 24-h immersion. By using a local technique, a higher susceptibility of the matrix of SSM and SSM/HT samples to pitting corrosion has been revealed.

Tài liệu tham khảo

ASM Handbook, Corrosion, vol. 13 (2003)

W.G. Kelvii, A Review of Magnesium/Magnesium Alloys Corrosion and Its Protection, Recent Patents Corr. Sci., 2010, 2, p 13–21

B.L. Mordike and T. Ebert, Magnesium: Properties-Applications-Potential, Mater. Sci. Eng. A, 2001, 302, p 37–45

R.W. Cahn, P. Haasen, and E. Kramer, MateriaIs Science and Technology, VCH Publishers Inc, New York, 1996

E. Ghali, Corrosion Resistance of Aluminium and Magnesium Alloys—Understanding, Performance and Testing, Wiley, Hoboken, 2010

G.I. Song, Recent Progress in Corrosion and Protection of Magnesium Alloys, Adv. Eng. Mater., 2005, 7, p 563–586

M. Esmaily, J.E. Svensson, S. Fajardo, N. Birbilis, G.S. Frankel, S. Virtanen, R. Arrabal, S. Thomas, and L.G. Johansson, Fundamentals and Advances in Magnesium Alloy Corrosion, Prog. Mater. Sci., 2017, 89, p 92–193

S. Brown, Magnesium: A Structural Super-Metal, Thoughts and Reflections on the Use of Magnesium, G. Neighbour and I. Oraifige, Ed., Belmont Press, Northampton, 2017, p 3–5

M.M. Avedesian and H. Baker, ASM Specialty Handbook, Magnesium and Magnesium Alloys, ASM International, The Mater. Information Society, Ohio, 1999, p 54

L.L. Rokhlin, Magnesium Alloys Containing Rare Earth Metals: Structure and Properties, Advances in Metallic Alloys, J.N. Fridlyander and G.G. Eskin, Ed., Taylor & Francis, Milton Park, 2003, p 34–68

Y.H. Kang, H. Yan, and R.S. Chen, Effects of Heat Treatment on the Precipitates and Mechanical Properties of Sand-Cast Mg-4Y-2.3 Nd-1Gd-0.6 Zr Magnesium Alloy, Mater. Sci. Eng., 2015, 645, p 361–368

S.J. Liu, G.Y. Yang, S.F. Luo, and W.Q. Jie, Microstructure and Mechanical Properties of Sand Mold Cast Mg-4.58 Zn-2.6 Gd-0.18 Zr Magnesium Alloy After different Heat Treatments, J. Alloys Compd., 2015, 644, p 846–853

P. Minarik, R. Kral, and M. Janecek, Effect of ECAP Processing on Corrosion Resistance of AE21 and AE42 Magnesium Alloys, Appl. Surf. Sci., 2013, 281, p 44–48

D.H. StJohn, M.A. Easton, M. Qian, and J.A. Taylor, Grain Refinement of Magnesium Alloys: A Review of Recent Research, Theoretical Developments, and Their Application, Metall. Mater. Trans. A, 2013, 44, p 2935–2949

Y. Ali, D. Qiu, B. Jiang, F. Pan, and M. Zhang, Current Research Progress in Grain Refinement of Cast Magnesium Alloys: A Review Article, J. Alloys Compd, 2015, 619, p 639–651

J.W. Chang, X.W. Guo, P.H. Fu, L.M. Peng, and W.J. Ding, Effect of Heat Treatment on Corrosion and Electrochemical Behaviour of Mg-3Nd-0.2 Zn-0.4 Zr (wt.%) alloy, Electrochim. Acta, 2007, 52, p 3160–3167

Z. Fan, Semisolid Metal Processing, Int. Mater. Rev., 2002, 47(2), p 49–85

F. Czerwinski, Magnesium Injection Molding, Springer, New York, 2008

Ł. Rogal, J. Dutkiewicz, A. Góral, B. Olszowska-Sobieraj, and J. Dańko, Characterization of the After Thixoforming Microstructure of a 7075 Aluminium Alloy Gear, Int. J. Mater. Form., 2010, 3, p 771–774

H.V. Atkinson and A. Rassili, Thixoforming Steel, Shaker Verlag, Aachen, 2010

Z. Zhao, Q. Chen, S. Huang, F. Kang, and Y. Wang, Inhomogeneity of Density and Mechanical Properties of A357 Aluminum Alloy Backward Extruded in Semi-solid State, Trans. Nonferrous Metals Soc. China, 2010, 20(9), p 1630–1637

J.A. Valle, M.T. Pérez-Prado, and J.R. Bartolomé, Grain Refinement in a Mg AZ91 Alloy Via Large Strain Hot Rolling, Mater. Trans., 2003, 44, p 2625–2630

Z.S. Ji, M.L. Hu, S. Sugiyama, and J. Yanagimoto, Formation Process of AZ31B Semi-solid Microstructures Through Strain-Induced Melt Activation Method, Mater. Charact., 2008, 59(7), p 905–911

G. Hirt and R. Kopp, Thixoforming Semi-solid Metal Processing, Wiley, New York, 2009

K.P. Young, C.P. Kyonka, and J.A. Courtois, Fine Grained Metal Composition, US Patent no. 4,415,374, 30 Mar 1982

G.L. Song, A. Atrens, X.L. Wu, and B. Zhang, Corrosion behaviour of AZ21, AZ501 and AZ91 in Sodium Chloride, Corr. Sci., 1998, 40, p 1769–1791

R.K. Singh Raman, N. Birbilis, and J. Efthimiadis, Corrosion of Mg Alloy AZ91—The Role of Microstructure, Corr. Eng. Sci. Technol., 2004, 39, p 346–350

O. Lunder, J.E. Lein, T.K. Aune, and K. Nisancioglu, The Role of Mg17Al12 Phase in the Corrosion of Mg Alloy AZ91, Corrosion, 1989, 45, p 741–748

J.H. Nordlien, K. Nisancioglu, S. Ono, and N. Masuko, Morphology and Structure of Water-Formed Oxides on Ternary MgAl Alloys, J. Electrochem. Soc., 1997, 144, p 461–466

G. Song and A. Atrens, Understanding Magnesium Corrosion—A Framework for Improved Alloy Performance, Adv. Eng. Mater., 2003, 5, p 837–858

M. Anik and G. Celikten, Analysis of the Electrochemical Reaction Behavior of Alloy AZ91 by EIS Technique in H3PO4/KOH Buffered K2SO4 Solutions, Corr. Sci., 2007, 49, p 1878–1894

G.L. Song, A. Atrens, and M. Dargusch, Influence of Microstructure on the Corrosion of Diecast AZ91D, Corr. Sci., 1999, 41, p 249–273

G.L. Song, A.L. Bowles, and D.H. StJohn, Corrosion Resistance of Aged Die Cast Magnesium Alloy AZ91D, Mater. Sci. Eng., 2004, 366, p 74–86

T. Zhang, Y. Li, and F.H. Wang, Roles of β Phase in the Corrosion Process of AZ91D Magnesium Alloy, Corr. Sci., 2006, 48, p 1249–1264

R. Ambat, N.N. Aung, and W. Zhou, Evaluation of Microstructural Effects on Corrosion Behaviour of AZ91D Magnesium Alloy, Corr. Sci., 2000, 42, p 1433–1455

M. Anik, P. Avci, A. Tanverdi, I. Celikyurek, B. Baksan, and B. Gurler, Effect of the Eutectic Phase Mixture on the Anodic Behavior of Alloy AZ91, Mater. Des., 2006, 27, p 347–355

G. Ballerini, U. Bardi, R. Bignucolo, and G. Ceraolo, About Some Corrosion Mechanisms of AZ91D Magnesium Alloy, Corr. Sci., 2005, 47, p 2173–2184

W.C. Neil, M. Forsyth, P.C. Howlett, C.R. Hutchinson, and B.R.W. Hinton, Corrosion of Magnesium Alloy ZE41—The Role of Microstructural Features, Corr. Sci., 2009, 51, p 387–394

H. Krawiec, S. Stanek, V. Vignal, J. Lelito, and J.S. Suchy, The Use of Microcapillary Techniques to Study the Corrosion Resistance of AZ91 Magnesium Alloy at the Microscale, Corr. Sci., 2011, 53, p 3108–3113

E. Koç, M.B. Kannan, M. Ünal, and E. Candan, Influence of Zinc on the Microstructure, Mechanical Properties and in Vitro Corrosion Behavior of Magnesium-Zinc Binary Alloys, J. Alloys Compd., 2015, 648, p 291–296

Properties and Selection: Nonferrous alloys and Special Purpose Materials—Selection and Application of Magnesium and Magnesium Alloys, ASM Handbook, vol 2

A.P.M. Saad and A. Syahrom, Study of Dynamic Degradation Behaviour of Porous Magnesium Under Physiological Environment of Human Cancellous Bone, Corr. Sci., 2018, 131, p 45–56

Y.F. Zheng, X.N. Gu, and F. Witte, Biodegradable Metals, Mater. Sci. Eng. R, 2014, 77, p 1–34

M.I. Jamesh, G. Wu, Y. Zhao, D.R. McKenzie, M.M.M. Bilek, and P.K. Chu, Electrochemical Corrosion Behavior of Biodegradable Mg-Y-RE and Mg-Zn-Zr Alloys in Ringer’s Solution and Simulated Body Fluid, Corr. Sci., 2015, 91, p 160–184

M. Ascencio, M. Pekguleryuz, and S. Omanovic, An Investigation of the Corrosion Mechanisms of WE43 Mg Alloy in a Modified Simulated Body Fluid Solution: the Influence of Immersion Time, Corr. Sci., 2014, 87, p 489–503

Y. Liu, S. Zheng, N. Li, H. Guo, Y. Zheng, and J. Peng, Study on the in Vitro Degradation Behavior of Pure Mg and WE43 in Human Bile for 60 Days for Future Usage in Biliary, Mater. Lett., 2016, 179, p 100–103

Ł. Rogal and G. Garzel, Semi-solid State Mixing of Mg-Zn-RE Alloys—Microstructure and Mechanical Properties, J. Mater. Process. Technol, 2019, 264, p 352–365

N. Perez, Electrochemistry and Corrosion Science, Kluwer, Boston, 2004

P.A. Schweitzer, Fundamentals of Corrosion—Mechanisms, Causes and Preventative Methods, CRC Press, Boca Raton, 2009

H. Böhni, T. Suter, and A. Schreyer, Micro-and Nanotechniques to Study Localized Corrosion, Electrochimica Acta, 1995, 40, p 1361–1368

T. Suter and H. Böhni, Microelectrodes for Studies of Localized Corrosion Processes, Electrochimica Acta, 1998, 43, p 2843–2849

T. Suter and H. Böhni, A New Microelectrochemical Method to Study Pit Initiation on Stainless Steels, Electrochimica Acta, 1997, 42, p 3275–3280

H. Krawiec and Z. Szklarz, Combining the Electrochemical Microcell Technique and the Electron Backscatter Diffraction Method to Study the Electrochemical Behaviour of Polycrystalline Aluminium in Sodium Chloride Solution, Electrochimica Acta, 2016, 203, p 426–438

H. Krawiec, Z. Szklarz, and V. Vignal, Influence of Applied Strain on the Microstructural Corrosion of AlMg2 As-Cast Aluminium Alloy in Sodium Chloride Solution, Corr. Sci., 2012, 65, p 387–396

M. Slezak, P. Bobrowski, and Ł. Rogal, Microstructure Analysis and Rheological Behavior of Magnesium Alloys at Semi-solid Temperature Range, J. Mater. Eng. Perform., 2018, 27(9), p 4593–4605

D. Qiua and M.-X. Zhang, Effect of Active Heterogeneous Nucleation Particles on the Grain Refining Efficiency in an Mg-10 wt% Y Cast Alloy, J. Alloys Compd., 2009, 488(1), p 260–264

T.B. Massalski, H. Okamoto, P.R. Subramanian, and L. Kacprzak, Binary Alloy Phase Diagrams-Second edition, ASM International, Materials Park, 1990

D. Qiu and M.X. Zhan, Effect of Active Heterogeneous Nucleation Particles on the Grain Refining Efficiency in an Mg-10wt.%Y Cast Alloy, J. Alloys Compd., 2009, 488, p 260–264

D.H. Kirkwood, Semisolid Metal Processing, Int. Mater. Rev., 1994, 39, p 173–189

Ł. Rogal and J. Dutkiewicz, Globular Microstructure Formation in X210CrW12 Steel for Semi-solid Processing Using Plastic Deformation or Boron Modification, Arch. Metall. Mater., 2012, 58, p 751–755

Ł. Rogal, F. Czerwiński, L. Litynska-Dobrzyńska, P. Bobrowski, A. Wierzbica-Miernik, and J. Dutkiewicz, Effect of hot Rolling and Equal-Channel Angular Pressing on Generation of Globular Microstructure in Semi-solid Mg-3% Zn alloy, Solid State Phenomena, 2014, 217, p 381–388

J. Polmear, Light Alloys, M.A. Burlington, Ed., Elsevier/Butterworth-Heinemann, Oxford, 2006,

J. Polmear, Magnesium Alloys and Applications, Mater. Sci. Technol., 1994, 10, p 1–16

K. Maruyama, M. Suzuki, and H. Sato, Creep Strength of Magnesium-Based Alloys, Metall. Mater. Trans. A., 2002, 33, p 875–882

G.L. Song and A. Atrens, Corrosion Mechanisms of Magnesium Alloys, Adv. Eng. Mater., 1999, 1, p 1

N. Pebere, C. Riera, and F. Dabosi, Investigation of Magnesium Corrosion in Aerated Sodium Sulfate Solution by Electrochemical Impedance Spectroscopy, Electrochim. Acta, 1990, 35, p 555–561

C. Cao, On the Impedance Plane Displays for Irreversible Electrode Reactions Based on the Stability Conditions of the Steady-State—I. One State Variable Besides Electrode Potential, Electrochim. Acta, 1990, 35, p 837–844

G. Baril, Ch Blanc, and N. Pebere, AC Impedance Spectroscopy in Characterizing Time-Dependent Corrosion of AZ91 and AM50 Magnesium Alloys Characterization with Respect to Their Microstructures, J. Electrochem. Soc., 2001, 148(12), p B489–B496

H. Krawiec, V. Vignal, and Z. Szklarz, Local Electrochemical Studies of the Microstructural Corrosion of AlCu4Mg1 As-Cast Aluminium Alloy and Influence of Applied Strain, J. Solid State Electrochem., 2009, 13, p 1181–1191

F. Cao, G.-L. Song, and A. Atrens, Corrosion and Passivation of Magnesium Alloys, Corr. Sci., 2016, 111, p 835–845

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Journal of Materials Engineering and Performance

Tập 29

6181-6195

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