The present work was undertaken to characterize mechanically mixed layers (MML) and wear debris formed during sliding wear of an Al-Si alloy and an Al-Si/SiCp metal matrix composite against M2 tool steel under dry sliding conditions. In particular, chemical, microstructural and crystallographic characteristics of the MMLs and wear debris have been investigated using scanning electron microscopy (SEM), transmission electron microscopy (TEM) with energy dispersive spectroscopy (EDS) and X-ray diffraction (XRD), as well as Mössbauer spectroscopy. It was observed that MMLs were formed in the worn surfaces at a variety of sliding loads used in the present work. The results show that the mixed layers and wear debris generated from the sliding systems had similar microstructural features and were comprised of a mixture of ultrafine grained structures, in which the constituents varied depending on the sliding loads. At a low load, the ultrafine structures mainly consisted of the original base materials, i.e. α-Al solid solution and α-Fe from the steel. With an increase in sliding load, the ultrafine structures were incorporated with an Fe-Al(Si) intermetallic compound and an aluminum oxide. The formation mechanisms of the mechanically mixed layers and their influences on wear mechanisms of these multiphase materials were also studied on the basis of the microstructural observations.
Wear – Elsevier
Published: Oct 1, 2000
It’s your single place to instantly
discover and read the research
that matters to you.
Enjoy affordable access to
over 18 million articles from more than
15,000 peer-reviewed journals.
All for just $49/month
Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly
Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place.
Get unlimited, online access to over 18 million full-text articles from more than 15,000 scientific journals.
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