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Subgrain refinement strengthening. Fourth quarterly progress report, July 1, 1975--September 30, 1975

Technical Report ·
OSTI ID:7262494
;
The effects of large strain deformation at 700 to 800/sup 0/C on the development of subgrains in 26 Cr--1 Mo steel was investigated. Based on results it is postulated that the dislocations within the subgrain boundary take on a more perfect ordered array with strain; it is then suggested that a well ordered array may be a poor barrier to plastic flow at warm temperature (where dislocation climb is rate controlling) but is a good barrier at low temperature (where dislocations must break through the subgrain boundary barrier).
Research Organization:
Stanford Univ., Calif. (USA). Dept. of Materials Science and Engineering
OSTI ID:
7262494
Report Number(s):
SU-326P38X4
Country of Publication:
United States
Language:
English

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Related Subjects

36 MATERIALS SCIENCE
360103* -- Metals & Alloys-- Mechanical Properties
ALLOYS
CHROMIUM ALLOYS
CHROMIUM STEELS
CHROMIUM-MOLYBDENUM STEELS
CRYSTAL DEFECTS
CRYSTAL STRUCTURE
DISLOCATIONS
ELECTRON BEAM MELTING
GRAIN SIZE
HARDNESS
IRON ALLOYS
IRON BASE ALLOYS
LINE DEFECTS
MECHANICAL PROPERTIES
MELTING
MICROSTRUCTURE
ORDER PARAMETERS
PHASE TRANSFORMATIONS
SIZE
STEELS
STRAINS
STRESSES
YIELD STRENGTH