The Resource The effect of prior cold work on the pressure welding of ferritic nodular iron, by Ronald M. Ledbetter, (electronic resource)

The effect of prior cold work on the pressure welding of ferritic nodular iron, by Ronald M. Ledbetter, (electronic resource)

Label
The effect of prior cold work on the pressure welding of ferritic nodular iron
Title
The effect of prior cold work on the pressure welding of ferritic nodular iron
Statement of responsibility
by Ronald M. Ledbetter
Creator
Contributor
Subject
Genre
Language
eng
Summary
"The purpose of this investigation was to determine the effect of prior cold work by swaging on the pressure welding of ferritic nodular iron. Test pressure welds were produced from continuously cast ferritic nodular iron in the as cast condition and with prior cold work of 20, 30, 40, and 50 per cent reductions in area. Welding pressures of 23,500 psi, 35,300 psi, and 47,100 psi were employed. All welds were made at interface temperatures of 2000°F. Welds made with the as cast material at high welding pressures possessed relatively low tensile strengths due to the creation of planes of weakness caused by transverse elongation of graphite nodule sites near the weld interface. The prior cold work longitudinally elongated the graphite nodule sites, which opposed the transverse site elongation during subsequent welding. As a result, the nodule sites became more spheroidal in shape and no planes of weakness were created. At all amounts of prior cold work investigated, tensile failure occurred in the material not affected by welding deformation and strengths greater than the as cast nodular iron were obtained. The optimum welding parameters studied were a prior cold work of 30 per cent reduction in area, a welding pressure of 47,100 psi and a welding temperature of 2000°F. Welds made with greater percentages of reduction in area retained some residual longitudinal nodule site elongation in the deformation affected zone"--Abstract, p. ii-iii
Related
http://bibfra.me/vocab/relation/advisor
NvyvI8iO4LA
Cataloging source
UMR
http://library.link/vocab/creatorDate
1944-
http://library.link/vocab/creatorName
Ledbetter, Ronald M.
Degree
M.S.
Dissertation year
1968.
Granting institution
University of Missouri--Rolla
Illustrations
  • illustrations
  • photographs
Index
no index present
Literary form
non fiction
Nature of contents
  • dictionaries
  • bibliography
  • theses
http://library.link/vocab/relatedWorkOrContributorName
Wolf, Robert V.
http://library.link/vocab/subjectName
  • Pressure welding
  • Cold welding
  • Ductile iron
  • Fracture mechanics
Target audience
specialized
Label
The effect of prior cold work on the pressure welding of ferritic nodular iron, by Ronald M. Ledbetter, (electronic resource)
Instantiates
Publication
Contributor
Note
  • Vita
  • Typescript
  • The entire thesis text is included in file
  • Title from title screen of thesis/dissertation PDF file (viewed April 3, 2013)
Bibliography note
Includes bibliographical references (pages 43-44)
Carrier category
online resource
Carrier category code
  • cr
Carrier MARC source
rdacarrier
Color
black and white
Content category
text
Content type code
  • txt
Content type MARC source
rdacontent
Control code
835137483
Dimensions
unknown
Extent
1 online resource (viii, 45 pages)
Form of item
  • online
  • electronic
Media category
computer
Media MARC source
rdamedia
Media type code
  • c
http://bibfra.me/vocab/relation/member
  • pBrW1wL8kGw
  • J2brAwKnjB8
Note
Metallurgical Engineering.
Other physical details
illustrations, photographs, digital, PDF file.
Specific material designation
remote
System control number
(OCoLC)835137483
System details
  • System requirements: Adobe Acrobat Reader; Internet browser
  • Mode of access: World Wide Web
Label
The effect of prior cold work on the pressure welding of ferritic nodular iron, by Ronald M. Ledbetter, (electronic resource)
Publication
Contributor
Note
  • Vita
  • Typescript
  • The entire thesis text is included in file
  • Title from title screen of thesis/dissertation PDF file (viewed April 3, 2013)
Bibliography note
Includes bibliographical references (pages 43-44)
Carrier category
online resource
Carrier category code
  • cr
Carrier MARC source
rdacarrier
Color
black and white
Content category
text
Content type code
  • txt
Content type MARC source
rdacontent
Control code
835137483
Dimensions
unknown
Extent
1 online resource (viii, 45 pages)
Form of item
  • online
  • electronic
Media category
computer
Media MARC source
rdamedia
Media type code
  • c
http://bibfra.me/vocab/relation/member
  • pBrW1wL8kGw
  • J2brAwKnjB8
Note
Metallurgical Engineering.
Other physical details
illustrations, photographs, digital, PDF file.
Specific material designation
remote
System control number
(OCoLC)835137483
System details
  • System requirements: Adobe Acrobat Reader; Internet browser
  • Mode of access: World Wide Web

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