Secondary ion mass spectrometry for establishing role of nanocrystalline structure in extraordinary oxidation resistance of Fe-Cr alloys

Simple item page
dc.contributor.authorGupta, RKen_AU
dc.contributor.authorSingh Raman, RKen_AU
dc.contributor.authorAtanacio, AJen_AU
dc.contributor.authorPrince, KEen_AU
dc.contributor.authorKoch, CCen_AU
dc.date.accessioned2021-09-22T02:29:21Zen_AU
dc.date.available2021-09-22T02:29:21Zen_AU
dc.date.issued2009-11-25en_AU
dc.date.statistics2021-09-21en_AU
dc.descriptionThis paper is only available in print format. The Conference Proceedings are held by ANSTO Library, DDC number 543.1/11.en_AU
dc.description.abstractThe last decade has witnessed a great surge in the materials science and engineering research on the development of nano-crystalline and sub-microcrystalline materials. A great deal of these studies has focused on the fundamental characterisation of the structures and their bearing on the physical and mechanical properties of nano-size and ultrafine grain materials. However, corrosion behaviour of nanocrystalline materials has received a very limited research attention. Rather, a simplistic approach to understanding the role of nanostructure in corrosion as compared to the microcrystalline material of same composition may suggest an increase in corrosion rate of the nanostructured material due to a large fraction of grain boundaries (i.e., high energy areas). However, the nature of influence of the nanostructure per se on corrosion does not seem to be similar in all cases. In fact, the nature of such influence can be contradictory, depending on the type of corrosion and environment-material system. For example, nanocrystalline structure is reported to improve the resistance of an iron aluminide system in a corrosive gas, whereas the dissolution rate of a nanocrystalline copper is reported to be greater than the conventional polycrystalline copper. It was hypothesised that it may be much easier to develop a protective film on nanocrystalline Fe-Cr alloys. Nanocrystalline (nc) and microcrystalline (mc) Fe-10Cr alloys were produced at North Carolina State University. During oxidation in air at 350 degrees C oxidised, oxidation kinetics of the nc alloy was found to be an order magnitude slower than the mc counterpart. Oxide scales on both alloys were characterised by depth profiling chromium, oxygen and iron using secondary ion mass spectrometer (SIMS) at ANSTO. SIMS results established that an Fe-Cr nanocrystalline alloy with only 10wt% Cr can provide as much or better corrosion resistance as/than an Fe-20Cr alloy, suggesting possibility of developing sufficient oxidation resistance at much lower Cr contents. © 2009 AINSEen_AU
dc.identifier.citationGupta, R. K, Singh Raman, R. K., Atanacio, A. J., Prince, K. & Koch, C. C. (2009). Secondary ion mass spectrometry for establishing role of nanocrystalline structure in extraordinary oxidation resistance of Fe-Cr alloys. Poster presented at the 16th Conference on Nuclear & Complementary Techniques of Analysis, AINSE, Lucas Heights, 25-27 November 2009.en_AU
dc.identifier.conferenceenddate27 November 2009en_AU
dc.identifier.conferencename16th Conference on Nuclear & Complementary Techniques of Analysisen_AU
dc.identifier.conferenceplaceLucas Heights, NSWen_AU
dc.identifier.conferencestartdate25 November 2009en_AU
dc.identifier.isbn9780975843486en_AU
dc.identifier.otherP2-6en_AU
dc.identifier.urihttps://apo.ansto.gov.au/dspace/handle/10238/11791en_AU
dc.language.isoenen_AU
dc.publisherAustralian Institute of Nuclear Science and Engineering (AINSE)en_AU
dc.subjectNanocrystalsen_AU
dc.subjectAlloysen_AU
dc.subjectFilmsen_AU
dc.subjectIronen_AU
dc.subjectChromiumen_AU
dc.subjectCopperen_AU
dc.subjectMass spectroscopyen_AU
dc.subjectANSTOen_AU
dc.titleSecondary ion mass spectrometry for establishing role of nanocrystalline structure in extraordinary oxidation resistance of Fe-Cr alloysen_AU
dc.typeConference Posteren_AU
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
GuptaAtanacio2009.pdf
Size:
127.61 KB
Format:
Adobe Portable Document Format
Description:
Download
License bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
license.txt
Size:
1.63 KB
Format:
Item-specific license agreed upon to submission
Description:
Download
Collections
Conference Publications