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Author (up) Guzman, D.; Garcia, C.; Soliz, A.; Sepulveda, R.; Aguilar, C.; Rojas, P.; Iturriza, I.; Luno-Bilbao, C. doi  openurl
  Title Synthesis and Electrochemical Properties of Ti-Si Alloys Prepared by Mechanical Alloying and Heat Treatment Type
  Year 2018 Publication Metals Abbreviated Journal Metals  
  Volume 8 Issue 6 Pages 417  
  Keywords POWDERS; ANODES; ELECTRODES; METALS; MICROSTRUCTURE; EVOLUTION; MIXTURES; TITANIUM; SYSTEM; ACID  
  Abstract The aim of this work was to study the synthesis and electrochemical properties of Ti 2 wt %-Si alloys prepared by mechanical alloying (MA) and heat treatment. The MA process was performed under Ar atmosphere. The structural, morphological, and compositional evolutions during the milling and subsequent heat treatment were investigated by X-ray diffraction, energy-dispersive spectroscopy, and scanning electron microscopy. The electrochemical behavior was evaluated by open circuit potential and linear sweep voltammetry measurements. The results showed that the MA process promotes the formation of a supersaturated alpha-Ti-Si solid solution. During heat treatment, the Si remaining in the mechanically alloyed powders and the Si from the alpha-Ti-Si supersaturated solid solution reacted with Ti to form Ti-Si intermetallic compounds. These compounds have a fine and homogeneous distribution in the alpha-Ti matrix, which cannot be achieved by conventional casting methods. Additionally, the electrochemical evaluations revealed that the mechanically alloyed and heat-treated Ti 2 wt %-Si powders have better corrosion resistance in 1.63 M H2SO4 than the pure Ti and MA Ti-Si samples. This is likely due to the particular microstructure produced during the milling and subsequent heat treatment.  
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  ISSN 2075-4701 ISBN Medium  
  Area Expedition Conference  
  Notes WOS:000436115600045 Approved  
  Call Number UAI @ alexi.delcanto @ Serial 1408  
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