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AuthorMerakeb, Noureddine
AuthorMessai, Amel
AuthorAyesh, Ahmad I.
Available date2021-09-01T10:04:06Z
Publication Date2016
Publication NameThin Solid Films
ResourceScopus
URIhttp://dx.doi.org/10.1016/j.tsf.2016.03.038
URIhttp://hdl.handle.net/10576/22538
AbstractIn this work we report on phase transformation of 304 stainless steel thin films due to heat treatment. Ex-situ annealing was applied for evaporated 304 stainless steel thin films inside an ultra-high vacuum chamber with a pressure of 3 × 10− 7 Pa at temperatures of 500 °C and 600 °C. The structure of thin films was studied by X-ray diffraction (XRD) and conversion electron Mössbauer spectroscopy (CEMS) techniques. The results revealed a transformation from α-phase that exhibits a body-centered cubic structure (BCC) to γ-phase that exhibits a face-centered cubic (FCC) due to annealing. In addition, the percentage of γ-phase structure increased with the increase of annealing temperature. Annealing thin films increased the crystal size of both phases (α and γ), however, the increase was nonlinear. The results also showed that phase transformation was produced by recrystallization of α and γ crystals with a temporal evolution at each annealing temperature. The texture degree of thin films was investigated by XRD rocking curve method, while residual stress was evaluated using curvature method.
Languageen
PublisherElsevier B.V.
SubjectAnnealing
Austenite
Austenitic stainless steel
Crystal structure
Ferrite
Phase structure
Phase transitions
Stainless steel
Thermal evaporation
X ray diffraction
Annealing temperatures
Body-centered cubic
Conversion electrons
Face-centered cubic
Rocking-curve methods
Ssbauer spectroscopies
Stainless steel thin films
Ultra-high vacuum chamber
Thin films
TitleInvestigation of phase transformation for ferrite-austenite structure in stainless steel thin films
TypeArticle
Pagination120-126
Volume Number606
dc.accessType Abstract Only


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