Quantitative analysis of a complex metal carbide formed during furnace cooling of cast duplex stainless steel using EELS and EDS in the TEM

In this work, a method to determine the atomic ratio of Mo and C within complex metal carbides using EELS in the TEM has been developed. The method is based on the determination of k-factors for given experimental conditions from the EEL spectra of Mo2C and MoO3 standards, which had been independent...

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Main Authors: Kuimalee S., Chairuangsri T., Pearce J.T.H., Edmonds D.V., Brown A.P., Brydson R.M.D.
Format: Article
Language:English
Published: 2014
Online Access:http://www.scopus.com/inward/record.url?eid=2-s2.0-77954387027&partnerID=40&md5=68edd272ce6650234bb54a95917ea0a4
http://www.ncbi.nlm.nih.gov/pubmed/20299231
http://cmuir.cmu.ac.th/handle/6653943832/5657
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Institution: Chiang Mai University
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spelling th-cmuir.6653943832-56572014-08-30T03:23:16Z Quantitative analysis of a complex metal carbide formed during furnace cooling of cast duplex stainless steel using EELS and EDS in the TEM Kuimalee S. Chairuangsri T. Pearce J.T.H. Edmonds D.V. Brown A.P. Brydson R.M.D. In this work, a method to determine the atomic ratio of Mo and C within complex metal carbides using EELS in the TEM has been developed. The method is based on the determination of k-factors for given experimental conditions from the EEL spectra of Mo2C and MoO3 standards, which had been independently checked by XRD and EPMA. Factors affecting the kMo/C value of the Mo2C standard were also investigated and the value was shown to be insensitive to background subtraction window width but sensitive to prolonged irradiation and specimen thicknesses above a critical value. The method and k-factor obtained from the Mo2C standard was applied to spectra from a complex metal carbide precipitate formed during furnace cooling of a cast duplex stainless steel. Using EELS and EDS in the TEM, the composition was estimated to be (Cr1.52Fe2.33Mo1.25Ni0.17Si0.46)C, which is close to M6C stoichiometry, and the structure was confirmed by electron diffraction. © 2010 Elsevier Ltd. 2014-08-30T03:23:16Z 2014-08-30T03:23:16Z 2010 Article 9684328 10.1016/j.micron.2010.02.009 MCONE http://www.scopus.com/inward/record.url?eid=2-s2.0-77954387027&partnerID=40&md5=68edd272ce6650234bb54a95917ea0a4 http://www.ncbi.nlm.nih.gov/pubmed/20299231 http://cmuir.cmu.ac.th/handle/6653943832/5657 English
institution Chiang Mai University
building Chiang Mai University Library
country Thailand
collection CMU Intellectual Repository
language English
description In this work, a method to determine the atomic ratio of Mo and C within complex metal carbides using EELS in the TEM has been developed. The method is based on the determination of k-factors for given experimental conditions from the EEL spectra of Mo2C and MoO3 standards, which had been independently checked by XRD and EPMA. Factors affecting the kMo/C value of the Mo2C standard were also investigated and the value was shown to be insensitive to background subtraction window width but sensitive to prolonged irradiation and specimen thicknesses above a critical value. The method and k-factor obtained from the Mo2C standard was applied to spectra from a complex metal carbide precipitate formed during furnace cooling of a cast duplex stainless steel. Using EELS and EDS in the TEM, the composition was estimated to be (Cr1.52Fe2.33Mo1.25Ni0.17Si0.46)C, which is close to M6C stoichiometry, and the structure was confirmed by electron diffraction. © 2010 Elsevier Ltd.
format Article
author Kuimalee S.
Chairuangsri T.
Pearce J.T.H.
Edmonds D.V.
Brown A.P.
Brydson R.M.D.
spellingShingle Kuimalee S.
Chairuangsri T.
Pearce J.T.H.
Edmonds D.V.
Brown A.P.
Brydson R.M.D.
Quantitative analysis of a complex metal carbide formed during furnace cooling of cast duplex stainless steel using EELS and EDS in the TEM
author_facet Kuimalee S.
Chairuangsri T.
Pearce J.T.H.
Edmonds D.V.
Brown A.P.
Brydson R.M.D.
author_sort Kuimalee S.
title Quantitative analysis of a complex metal carbide formed during furnace cooling of cast duplex stainless steel using EELS and EDS in the TEM
title_short Quantitative analysis of a complex metal carbide formed during furnace cooling of cast duplex stainless steel using EELS and EDS in the TEM
title_full Quantitative analysis of a complex metal carbide formed during furnace cooling of cast duplex stainless steel using EELS and EDS in the TEM
title_fullStr Quantitative analysis of a complex metal carbide formed during furnace cooling of cast duplex stainless steel using EELS and EDS in the TEM
title_full_unstemmed Quantitative analysis of a complex metal carbide formed during furnace cooling of cast duplex stainless steel using EELS and EDS in the TEM
title_sort quantitative analysis of a complex metal carbide formed during furnace cooling of cast duplex stainless steel using eels and eds in the tem
publishDate 2014
url http://www.scopus.com/inward/record.url?eid=2-s2.0-77954387027&partnerID=40&md5=68edd272ce6650234bb54a95917ea0a4
http://www.ncbi.nlm.nih.gov/pubmed/20299231
http://cmuir.cmu.ac.th/handle/6653943832/5657
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