Corrosion behavior of selective laser melted Ti-6Al-4 V alloy in NaCl solution

Abstract Electrochemical measurements were performed to investigate the corrosion behavior of Ti-6Al-4 V alloy prepared by selective laser melting (SLM) and commercial Grade 5 sample for comparison. Electrochemical results showed that the SLM-produced sample possesses poorer corrosion resistance than the Grade 5 sample. Microstructure studies suggested that the SLM-produced sample is composed of dominant acicular α’ martensite and some prior β grains, unlike the typical α  +  β microstructure in Grade 5 sample. The unfavorable corrosion resistance of the SLM-produced sample is related to the considerably large amount of acicular α ’ and less β –Ti phase in the microstructure compared to the Grade 5 sample.

[1]  M. Pereira-da-Silva,et al.  In situ impedance spectroscopy study of the electrochemical corrosion of Ti and Ti―6Al―4V in simulated body fluid at 25 °C and 37 °C , 2009 .

[2]  S. R. Biaggio,et al.  On the stability of thin-anodic-oxide films of titanium in acid phosphoric media , 2001 .

[3]  T. Nam,et al.  Applications of Ti–Ni alloys for secondary batteries , 2008 .

[4]  J. M. Sánchez-Amaya,et al.  Microstructure, microhardness and corrosion resistance of remelted TiG2 and Ti6Al4V by a high power diode laser , 2012 .

[5]  Yulin Hao,et al.  Manufacture by selective laser melting and mechanical behavior of a biomedical Ti–24Nb–4Zr–8Sn alloy , 2011 .

[6]  I. Yadroitsava,et al.  Selective laser melting of Ti6Al4V alloy for biomedical applications: Temperature monitoring and microstructural evolution , 2014 .

[7]  Carmelo Sunseri,et al.  In situ characterization of passive films on al-ti alloy by photocurrent and impedance spectroscopy , 1998 .

[8]  Lai‐Chang Zhang,et al.  Processing and properties of topologically optimised biomedical Ti-24Nb-4Zr-8Sn scaffolds manufactured by selective laser melting , 2015 .

[9]  Konda Gokuldoss Prashanth,et al.  Comparison of wear properties of commercially pure titanium prepared by selective laser melting and casting processes , 2015 .

[10]  H. Rack,et al.  Titanium alloys in total joint replacement--a materials science perspective. , 1998, Biomaterials.

[11]  K. Fitzner,et al.  Corrosion resistance of Ti and Ti–Pd alloy in phosphate buffered saline solutions with and without H2O2 addition , 2013 .

[12]  W. Tsai,et al.  In situ corrosion monitoring of Ti–6Al–4V alloy in H2SO4/HCl mixed solution using electrochemical AFM , 2011 .

[13]  F. Karimzadeh,et al.  Effect of heat treatment on corrosion behavior of Ti–6Al–4V alloy weldments , 2008 .

[14]  J. Kruth,et al.  A study of the microstructural evolution during selective laser melting of Ti–6Al–4V , 2010 .

[15]  R. Keith Bird,et al.  Titanium Alloys and Processing for High Speed Aircraft , 1998 .

[16]  J. González,et al.  Study of the corrosion behavior of titanium and some of its alloys for biomedical and dental implant applications , 1999 .

[17]  Mariana Calin,et al.  Manufacture by selective laser melting and mechanical behavior of commercially pure titanium , 2014 .

[18]  M. Salehi,et al.  Corrosion behaviour of laser gas nitrided Ti―6Al―4V in HCl solution , 2009 .

[19]  Isolda Costa,et al.  Corrosion characterization of titanium alloys by electrochemical techniques , 2006 .

[20]  N. Ibriş,et al.  EIS study of Ti and its alloys in biological media , 2002 .

[21]  E. Collings,et al.  Materials Properties Handbook: Titanium Alloys , 1994 .

[22]  O. V. Tkachuk,et al.  Corrosion resistance of Ti–6Al–4V alloy with nitride coatings in Ringer’s solution , 2013 .

[23]  F. Borgioli,et al.  Corrosion resistance properties of plasma nitrided Ti-6Al-4V alloy in hydrochloric acid solutions , 2002 .

[24]  F. Heakal,et al.  Electrochemical behaviour of Ti-6Al-4V alloy and Ti in azide and halide solutions , 2011 .

[25]  Konda Gokuldoss Prashanth,et al.  Mechanical Behavior of Porous Commercially Pure Ti And Ti–TiB Composite Materials Manufactured By Selective Laser Melting , 2015 .

[26]  B. Raj,et al.  Influence of microstructure and alloying elements on corrosion behavior of Ti–13Nb–13Zr alloy , 2004 .

[27]  Daryoush Habibi,et al.  Effect of α″ martensite on the microstructure and mechanical properties of beta-type Ti–Fe–Ta alloys , 2015 .

[28]  Mariana Calin,et al.  Selective laser melting of in situ titanium–titanium boride composites: Processing, microstructure and mechanical properties , 2014 .

[29]  J. Eckert,et al.  Nanostructured Ti-based multi-component alloys with potential for biomedical applications. , 2003, Biomaterials.

[30]  Heat treatment of Ti6Al4V produced by Selective Laser Melting: Microstructure and mechanical properties , 2012 .

[31]  C. Marino,et al.  EIS characterization of a Ti-dental implant in artificial saliva media: dissolution process of the oxide barrier , 2004 .

[32]  André Luiz Jardini,et al.  Microstructure and mechanical behavior of porous Ti-6Al-4V parts obtained by selective laser melting. , 2013, Journal of the mechanical behavior of biomedical materials.