The interaction between the Ti6Al4V alloy and the mould materials was investigated. The alpha-case was characterized by Vickers hardness tester, optical and scanning electron microscopy equipped with electron dispersive X-ray spectrometry (EDX). X-ray diffraction (XRD) analysis was performed on as cast and on YFSZ or YZ-Blended face-coats. From the experimental results, a distinct alpha-case formation was revealed. The YFSZ led to a thicker and harder alpha-case than the YZ-Blended face-coat. The EDX revealed the presence of Zr and Si elements in both alpha-cases. Therefore, from experimental results and thermodynamic calculations, pure ZrO(sub2) and SiO(sub2) may react with Ti.
Reference:
Mutombo, K, Kgomo, C and Rossouw, P. 2014. Interaction between Yttria fully stabilized Zirconia or Yttria-Zirconia blended face-coat with Ti6Al4V during investment casting. In: AMI Light Metals Conference, Pilanesberg National Park, South Africa, 15-17 October 2014
Mutombo, K., Kgomo, C., & Rossouw, P. (2014). Interaction between Yttria fully stabilized Zirconia or Yttria-Zirconia blended face-coat with Ti6Al4V during investment casting. Trans Tech Publications. http://hdl.handle.net/10204/8104
Mutombo, K, C Kgomo, and P Rossouw. "Interaction between Yttria fully stabilized Zirconia or Yttria-Zirconia blended face-coat with Ti6Al4V during investment casting." (2014): http://hdl.handle.net/10204/8104
Mutombo K, Kgomo C, Rossouw P, Interaction between Yttria fully stabilized Zirconia or Yttria-Zirconia blended face-coat with Ti6Al4V during investment casting; Trans Tech Publications; 2014. http://hdl.handle.net/10204/8104 .
AMI Light Metals Conference, Pilanesberg National Park, South Africa, 15-17 October 2014. Due to copyright restrictions, the attached PDF file only contains the abstract of the full text item. For access to the full text item, please consult the publisher's website.
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