Research Article Open Access

Development of Porous Ti-6Al-4V Mix with Palm Stearin Binder by Metal Injection Molding Technique

Mohamad Ikhwan Jamaludin1, Nur Atikah Abu Kasim1, Nor Hafiez Mohamad Nor1 and Muhammad Hussain Ismail1
  • 1 Centre for Advanced Materials Research (CAMAR), Faculty of Mechanical Engineering, University Technology of MARA (UiTM), 40450 Shah Alam, Selangor, Malaysia

Abstract

Good potential of biocompatibility and excellent mechanical properties, porous Ti-6Al-4V has become a great interest for biomedical applications. In this study, porous Ti-6Al-4V was fabricated by Metal Injection Molding (MIM) using Palm Stearin (PS) and Polyethylene (PE) binder together with sodium chloride (NaCl) as a space holder. Rheological characterization was performed to evaluate the flowability of the feedstocks for injection molding and the feedstocks exhibited a pseudoplastic behavior which is suitable for injection. The as-sintered parts were fabricated as the mixing, injection molding, debinding and sintering were conducted successfully. The mechanical properties of the as-sintered parts were investigated via tensile test and the results obtained were closed with the established range. Shrinkage, density and X-Ray Diffractometry (XRD) of the as-sintered parts were compared with the theoretical values which were found closed to the acceptable ranges. The microstructure of the surface and cross-section were observed under Scanning Electron Micrograph (SEM) and optical microscope to analyze the specimens before and after sintering. Generally, palm stearin binder system added with space holder to fabricate porous Ti-6Al-4V by MIM is feasible and has shown a good potential for biomedical applications.

American Journal of Applied Sciences
Volume 12 No. 10, 2015, 742-751

DOI: https://doi.org/10.3844/ajassp.2015.742.751

Submitted On: 27 March 2015 Published On: 31 October 2015

How to Cite: Jamaludin, M. I., Kasim, N. A. A., Nor, N. H. M. & Ismail, M. H. (2015). Development of Porous Ti-6Al-4V Mix with Palm Stearin Binder by Metal Injection Molding Technique. American Journal of Applied Sciences, 12(10), 742-751. https://doi.org/10.3844/ajassp.2015.742.751

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Keywords

  • Metal Injection Molding (MIM)
  • Porous
  • Ti-6Al-4V
  • Palm Stearin
  • Space Holder