8/6/2019 0022-3727_39_15_E01
1/3
Tribocorrosion: fundamentals, materials and applications
This article has been downloaded from IOPscience. Please scroll
down to see the full text article.
2006 J. Phys. D: Appl. Phys. 39
(http://iopscience.iop.org/0022-3727/39/15/E01)
Download details:
IP Address: 189.196.159.76
The article was downloaded on 10/07/2011 at 03:49
Please note that terms and conditions apply.
View the table of contents for this issue, or go to thejournal
homepage for more
ome Search Collections Journals About Contact us My
IOPscience
http://iopscience.iop.org/page/termshttp://iopscience.iop.org/0022-3727/39/15http://iopscience.iop.org/0022-3727http://iopscience.iop.org/http://iopscience.iop.org/searchhttp://iopscience.iop.org/collectionshttp://iopscience.iop.org/journalshttp://iopscience.iop.org/page/aboutioppublishinghttp://iopscience.iop.org/contacthttp://iopscience.iop.org/myiopsciencehttp://iopscience.iop.org/myiopsciencehttp://iopscience.iop.org/contacthttp://iopscience.iop.org/page/aboutioppublishinghttp://iopscience.iop.org/journalshttp://iopscience.iop.org/collectionshttp://iopscience.iop.org/searchhttp://iopscience.iop.org/http://iopscience.iop.org/0022-3727http://iopscience.iop.org/0022-3727/39/15http://iopscience.iop.org/page/terms
8/6/2019 0022-3727_39_15_E01
2/3
INSTITUTE OF PHYSICS PUBLISHING JOURNAL OF PHYSICS D: APPLIED
PHYSICS
EDITORIAL
Tribocorrosion: fundamentals, materialsand applications
Guest Editors
Alfons FischerUniversitat Duisburg-Essen,Germany
Stefano MischlerEcole Polytechnique Federale
de Lausanne, Switzerland
Tribocorrosion covers the science of surface transformations
resulting from theinteraction of mechanical loading and chemical
reactions that occur betweenelements of a tribosystem exposed to
corrosive environments. Thus it combinesthe mechanical and chemical
interactions of body, counterbody, interfacialmedium, and
environment including friction, lubrication, wear and
tribologicallyactivated chemical and electrochemical reactions.
During friction the adhesivedissipation of energy is often
influenced by chemical effects, while during wear
the wear mechanisms of adhesion as well as tribochemical
reactions areaffected. The latter mechanism is of interest in
mechanical engineeringparticularly, because it might prevent
adhesion, which would bring about a muchhigher wear rate or even
seizure. Nevertheless, in electronics as well as forMEMS and NEMS,
chemical reactions are often avoided because they change thenature
(e.g. conductivity, reactivity) of surfaces of sensors or alter the
dimensionsof parts within the nm- and m-range by the growth of a
reaction layer. Thus,depending on the structure and loading of the
tribosystem, tribocorrosionphenomena could be either beneficial or
detrimental.
In order to benefit from tribocorrosion phenomena it is crucial
to control them aswell as the nature of rubbed or worn surfaces,
which have undergone tribologicalstresses. Unfortunately, the
tribocorrosion mechanisms are still not well
understood. Reasons for this stem not only from the complex
interactions ofchemical and mechanical factors but also from the
experimental difficulty ofcharacterizing mechanically and/or
thermally induced surface phenomenaoccurring inside small contacts.
Due to the fact that the duration of a singleasperity contact is
short and that it takes place directly at the interface
ofcontacting bodies, even modern surface analysing techniques often
fail. Manyreactions could take place at the same time and the
quantity of reaction productsmight be very small. In addition,
metastable phases might be important inside acontact, which then
transform into stable reaction products outside of the
contact.Thus, in situ techniques are most suitable for
tribocorrosion investigations. In thecase of electronically
conducting materials exposed to ionic conductive liquids,such as
aqueous solutions, triboelectrochemical techniques offer
interesting
possibilities to control, in situ and in real time, the surface
reactions occurring in acontact. However, further experimental
developments are needed to obtain aclearer picture of the processes
involved. Thus, tribocorrosion has been a point ofbasic research
for more than 40 years and will remain as such in the near
future.
This special cluster issue within Journal of Physics D: Applied
Physics providesstate-of-the-art information on tribocorrosion. Due
to the fact that this researcharea is very large and complex, the
given selection of papers will certainly not berepresentative of
the entire field. The editors have tried, however, to offer
aglimpse of what happens with metals, ceramics, and polymers when
exposed tothe combined action of friction and corrosion. Thus, this
issue begins with a viewon general and basic aspects of
tribocorrosion. This is followed by papers whichconcentrate on the
materials response to tribocorrosion and contributions related
to abrasion and surface fatigue wear mechanisms. Finally the
influence oftribocorrosion on certain applications is presented.
This cluster should encourage
