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High Temperature Material Processes: An International Quarterly of High-Technology Plasma Processes
ESCI SJR: 0.176 SNIP: 0.48 CiteScore™: 1.3

ISSN Druckformat: 1093-3611
ISSN Online: 1940-4360

High Temperature Material Processes: An International Quarterly of High-Technology Plasma Processes

DOI: 10.1615/HighTempMatProc.v2.i3.110
pages 431-442

ION-BEAM ASSISTED DEPOSITION EFFECT ON RESIDUAL STRESSES IN 304L STAINLESS STEEL FILMS

Ph. Goudeau
Laboratoire de Metallurgie Physique - U.M.R. 6630 C.N.R.S. - Universite de Poitiers Bat. S.P.2M.I. - Bd 3 -Teleport 2 - BP 179 - 86960 Futuroscope cedex - France
A. Serrari
Universite Hassan II - Mohammedia - Faculte des Sciences Ben M'Sik Departement de Physique - L.P.S.C.M. - BP 7955 - Casablanca - Maroc
B. Boubeker
Universite Hassan II - Mohammedia - Faculte des Sciences Ben M'Sik Departement de Physique - L.P.S.C.M. - BP 7955 - Casablanca - Maroc
J.P. Eymery
Universite de Poitiers - Laboratoire de Metallurgie Physique - UMR 6630 CNRS SP2MI - Bd3 - Teleport 2 - BP 179 - 86960 Futuroscope Cedex - France

ABSTRAKT

Improvement of the tribological behaviour of bulk material with a deposited coating on its surface is widely used because it generally provides good results. Nevertheless, the deposition process is often responsible of residual stress generation in the film which may then lead to a degradation of the coated sample. The aim of this work is to show that high compressive stresses existing in a 304L Stainless Steel sputter-deposited coating may be reduced when using ion irradiation during thin film growth. The evolution of the mechanical and microstructural state as a function of ion irradiation have been studied by X-ray diffraction and curvature methods. The results indicate a large decrease of the compressive stress magnitude (about 50%) and an increase of the size of coherently diffracting domains (factor 10) for ion-beam assisted deposition process with respect to the classical one. Furthermore, we observed a large difference (around 1 GPa) for all the samples between the stress level determined by X-ray diffraction and the one related to curvature method. In addition, conversion electron Mossbauer spectroscopy results are closely correlated to the X-ray diffraction ones.


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