File:Microchemical analysis of non-metallic inclusions in C-MN steel shielded metal arc welds by analytical transmission electron microscopy (IA microchemicalana00walt).pdf

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Original file ‎(1,218 × 1,616 pixels, file size: 7.45 MB, MIME type: application/pdf, 174 pages)

Summary

Microchemical analysis of non-metallic inclusions in C-MN steel shielded metal arc welds by analytical transmission electron microscopy   (Wikidata search (Cirrus search) Wikidata query (SPARQL)  Create new Wikidata item based on this file)
Author
Walters, Jon D.
image of artwork listed in title parameter on this page
Title
Microchemical analysis of non-metallic inclusions in C-MN steel shielded metal arc welds by analytical transmission electron microscopy
Publisher
Monterey, California: Naval Postgraduate School;Springfield, Va.: Available from National Technical Information Service
Description
"June 1998."
Thesis advisor(s): A.G. Fox
Thesis (M.S. in Mechanical Engineering) Naval Postgraduate School, June 1998
Includes bibliographical references (p. 139-141)
Microchemical analyses of the inclusions present in several shielded metal-arc steel weld metals were made by analytical transmission electron microscopy (TEM). Low alloy C-Mn steel weld metal samples were studied in which only the titanium and aluminum contents varied significantly. Carbon extraction replicas were made from each of the weldments and the inclusions were analyzed in the TEM by energy dispersive x-ray (EDX) and parallel electron energy loss spectroscopy (PEELS). The results indicated that, for weld metals containing small amounts of M (13 ppm), the inclusions were comprised of MnO-SiO2, TiO (maybe as a compound) and Cu(Mn)S. As the M content was increased to 160 ppm, Mn and Si no longer took part in the deoxidization process and the inclusion compositions were dominated by TiO and A12O3 along with some sulfides. For weld metal containing a much higher amount of Al (580 ppm) the inclusions became essentially mixtures of TiO, Al2O3 and TiN sometimes complexed with sulfides. These inclusion chemistries were predicted by the use of equilibrium thermodynamics and their effect on the microstructure and mechanical properties of the steel weld metals investigated
Mode of access: World Wide Web
System requirements: Adobe Acrobat reader
US Navy (USN) author
dk/dk cc:9116 10/06/98

Subjects:
Language English
Publication date 1 June 1998
publication_date QS:P577,+1998-06-01T00:00:00Z/11
Current location
IA Collections: navalpostgraduateschoollibrary; fedlink; americana
Accession number
microchemicalana00walt
Authority file  OCLC: 1049644264
Source
Internet Archive identifier: microchemicalana00walt
https://archive.org/download/microchemicalana00walt/microchemicalana00walt.pdf

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Public domain
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current23:37, 22 July 2020Thumbnail for version as of 23:37, 22 July 20201,218 × 1,616, 174 pages (7.45 MB)FæFEDLINK - United States Federal Collection microchemicalana00walt (User talk:Fæ/IA books#Fork8) (batch 1993-2020 #21844)
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