Interactions between wear and corrosion on cast and sintered Ti-12Nb alloy in comparison with the commercial Ti-6Al-4V alloy Articles uri icon

publication date

  • August 2020

start page

  • 1

end page

  • 9

issue

  • 108925

volume

  • 176

International Standard Serial Number (ISSN)

  • 0010-938X

Electronic International Standard Serial Number (EISSN)

  • 1879-0496

abstract

  • This work investigates the corrosion and tribocorrosion behavior of alfa + beta Ti-12Nb alloy processed by castingand sintering, in 9 g/l NaCl solution at body temperature, and compares the results with the commercial Ti-6Al-4 V alloy. Different electrochemical techniques were used to access the corrosion behavior. Tribocorrosion behavior was studied at open circuit potential under continuous and intermittent sliding, and at anodic potentiostatic condition under continuous sliding. Results revealed that Ti-12Nb alloys presented similar tribo-corrosion behavior although the sintered one exhibited a better corrosion behavior. Nevertheless, Ti-6Al-4 Vpresented better overall degradation resistance than both Ti-12Nb alloys.

subjects

  • Materials science and engineering

keywords

  • casting; corrosion; powder metallurgy; titanium alloys; tribocorrosion