The Resource The deformation mechanisms in sublimed magnesium under cyclic loading, by Babu Narain Thakur, (electronic resource)

The deformation mechanisms in sublimed magnesium under cyclic loading, by Babu Narain Thakur, (electronic resource)

Label
The deformation mechanisms in sublimed magnesium under cyclic loading
Title
The deformation mechanisms in sublimed magnesium under cyclic loading
Statement of responsibility
by Babu Narain Thakur
Creator
Subject
Genre
Language
eng
Summary
"A detailed study of the deformation processes in sublimed magnesium under reverse bending fatigue in air at room temperature has been undertaken utilizing the light, scanning and transmission electron microscopy. The Principal deformation modes are the basal slip and {101[overscore]2} twinning. The proportion of twinning increases markedly with the increasing stress level and the number of cycles. The evidence for cross slip is seen on the basal slip bands. The extrusions are seen not only along the basal slip lines but also along the {101[overscore]2} twin boundaries. In the later stages of fatigue, the extrusions chip off producing a notch for the crack initiation. At low stress levels cracks initiate in the grain boundaries and propagate intergranularly. At high stress levels, cracks also nucleate at the intersections of the basal slip extrusion and {101[overscore]2} twins. The cracks also propagate transgranularly along the and prism planes and {101[overscore]2} twin boundaries. The transmission electron microscopy of the regions near the surface of the test bars, revealed patches of edge dislocation dipoles having Burgers vectors mainly parallel to one close packed direction. These dipoles appear to have formed by the double cross slip mechanism"--Abstract, Page ii
Member of
Cataloging source
UMR
http://library.link/vocab/creatorDate
1939-
http://library.link/vocab/creatorName
Thakur, Babu Narian
Degree
Ph. D.
Dissertation year
1970.
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/subjectName
  • Metals
  • Deformations (Mechanics)
  • Magnesium
Target audience
specialized
Label
The deformation mechanisms in sublimed magnesium under cyclic loading, by Babu Narain Thakur, (electronic resource)
Instantiates
Publication
Note
  • Vita
  • Typescript
  • The entire thesis text is included in file
  • Title from title screen of thesis/dissertation PDF file (viewed June 4, 2013)
Bibliography note
Includes bibliographical references (Pages 99-103)
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
846662890
Dimensions
unknown
Extent
1 online resource (xi, 104 Pages)
Form of item
  • online
  • electronic
Media category
computer
Media MARC source
rdamedia
Media type code
  • c
Other physical details
illustrations, photographs, digital, PDF file.
Specific material designation
remote
System control number
(OCoLC)846662890
Label
The deformation mechanisms in sublimed magnesium under cyclic loading, by Babu Narain Thakur, (electronic resource)
Publication
Note
  • Vita
  • Typescript
  • The entire thesis text is included in file
  • Title from title screen of thesis/dissertation PDF file (viewed June 4, 2013)
Bibliography note
Includes bibliographical references (Pages 99-103)
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
846662890
Dimensions
unknown
Extent
1 online resource (xi, 104 Pages)
Form of item
  • online
  • electronic
Media category
computer
Media MARC source
rdamedia
Media type code
  • c
Other physical details
illustrations, photographs, digital, PDF file.
Specific material designation
remote
System control number
(OCoLC)846662890

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