Ultrafine 316 L stainless steel particles with frozen-in magnetic structures characterized by means of electron backscattered diffraction
2011 (English)In: Materials letters (General ed.), ISSN 0167-577X, E-ISSN 1873-4979, Vol. 65, no 14, 2089-2092 p.Article in journal (Refereed) Published
Electron Backscatter Diffraction (EBSD) studies clearly revealed a different crystallographic structure of the smallest particle size fraction of gas-atomized AISI 316 L stainless steel powder (<4 mu m) compared with larger sized fractions of the same powder (<45 mu m). Despite similar chemical compositions, the predominating structure of the smallest particle size fraction was ferritic (i.e., has ferromagnetic properties) whereas the larger sized particle fractions and massive 316 L revealed an expected austenitic and non-magnetic structure. From these findings, it follows that direct magnetic separation can be applied to separate very fine sized particles. These structural differences explain previously observed dissimilarities from corrosion and metal release perspectives.
Place, publisher, year, edition, pages
2011. Vol. 65, no 14, 2089-2092 p.
Electron backscattered diffraction, Particles, Stainless steel, Phase transformation, Metals and alloys, Crystal structure
IdentifiersURN: urn:nbn:se:kth:diva-37149DOI: 10.1016/j.matlet.2011.04.019ISI: 000292444200001ScopusID: 2-s2.0-79955892970OAI: oai:DiVA.org:kth-37149DiVA: diva2:432455