Study of the properties of low-cost powder metallurgy titanium alloys by 430 stainless steel addition Articles uri icon

publication date

  • August 2014

start page

  • 628

end page

  • 636

issue

  • August

volume

  • 60

International Standard Serial Number (ISSN)

  • 0264-1275

Electronic International Standard Serial Number (EISSN)

  • 1873-4197

abstract

  • Titanium is a lightweight metal with an outstanding combination of properties which make it the material of choice for many different applications. Nonetheless, its employment at industrial level is not widespread due to higher production costs with respect to competitor metals like steel and aluminium. In this work the production of low-cost titanium alloys is attempted by combining the utilisation of a powder metallurgy process and cheap alloying elements (i.e. commercial 430 stainless steel powder optimised for the powder metallurgy industry). Low-cost titanium alloys are fabricated by blending elemental titanium with stainless steel. The behaviour of the powders as well as that of the sintered materials are analysed and compared to that of a master alloy addition Ti6Al4V alloy. The produced low-cost titanium alloys show comparable properties to both wrought and powder metallurgy titanium alloys and, therefore, they are proposed as an alternative to obtain structural component made out of titanium alloys.

keywords

  • low-cost titanium alloy; titanium powder metallurgy; blending elemental; homogeneous microstructure