What is it about?
Beta Ti alloys show high corrosion resistance, low elastic modulus and good biocompatibility. The use of elements with better biocompatibility and good corrosion resistance, such as Nb, Ta or Mo have been widely studied recently. Powder technology provides great capability in order to have alloying control and reduced cost in final shape obtaining. Powder metallurgy process has the advantage of produce metallic alloys with high contents of refractory elements. However, alloys development with noble and refractory elements shows some specific problems such as lack of diffusion and grain growth, which can affect the mechanical properties or lead to α-Ti phase precipitation along grain boundaries due to the slower furnace cooling after sintering
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Why is it important?
The possibility of developing titanium alloys with a high content of alloy elements, which are also refractory, is of great interest, especially when carried out by conventional powder-metallurgical techniques.
Perspectives
In spite of the obtained results, some properties with greater densification of the alloys must be improved by high densification processes such as Spark Plasma Sintering or Electrical Resistence Sintering
Vicente Amigó
Universitat Politecnica de Valencia
Read the Original
This page is a summary of: Effect of Fe Addition on Microstructure and Properties of Powder Metallurgy Ti35Nb10Ta Alloy, Materials Science Forum, July 2017, Trans Tech Publications,
DOI: 10.4028/www.scientific.net/msf.899.206.
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