This paper investigates the effect of surface roughness on the friction and wear of bulk metallic glasses (BMGs). The pin-on-disk tests were carried out with the BMG pins of Ti40Zr25Ni3Cu12Be20 (Ti-BMG) and Cu47.5Zr47.5Al5 (Cu-BMG) sliding against an EN26 steel disk. It was found that the deformation of asperities prior to the contact sliding increases the asperity plasticity and plays an important role in the variation of the tribological properties of the materials. Although the friction coefficient and wear resistance of both the BMGs increase with the surface roughness, their mechanisms are different. The Ti-BMG experienced a typical abrasive wear, but the Cu-BMG went through an adhesive wear process. The wear resistance of the Cu-BMG is much higher although its hardness is almost the same as that of the Ti-BMG. The study concludes that it is mainly the higher plasticity of the Cu-BMG that leads to its better wear resistance, although the material layer transferred to the disk surface during sliding could have also influenced the wear rate.
Wear – Elsevier
Published: May 1, 2015
It’s your single place to instantly
discover and read the research
that matters to you.
Enjoy affordable access to
over 12 million articles from more than
10,000 peer-reviewed journals.
All for just $49/month
Read as many articles as you need. Full articles with original layout, charts and figures. Read online, from anywhere.
Keep up with your field with Personalized Recommendations and Follow Journals to get automatic updates.
It’s easy to organize your research with our built-in tools.
Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.
All the latest content is available, no embargo periods.
“Hi guys, I cannot tell you how much I love this resource. Incredible. I really believe you've hit the nail on the head with this site in regards to solving the research-purchase issue.”Daniel C.
“Whoa! It’s like Spotify but for academic articles.”@Phil_Robichaud
“I must say, @deepdyve is a fabulous solution to the independent researcher's problem of #access to #information.”@deepthiw
“My last article couldn't be possible without the platform @deepdyve that makes journal papers cheaper.”@JoseServera