SANS and TEM studies of carbide precipitation and creep damage in type 304 stainless steel

Conference · Sun Jan 01 04:00:00 EST 1984

OSTI ID:6496206

Yoo, M H; Ogle, J C; Schneibel, J H; Swindeman, R W

Small-angle neutron scattering (SANS) and transmission electron microscopy (TEM) studies were performed to characterize the carbide (M/sub 23/C/sub 6/) precipitation and creep damage induced in type 304 stainless steel in the primary creep stage. The size distribution of matrix carbides evaluated from SANS analyses was consistent with TEM data, and the expected accelerated kinetics of precipitation under applied stress was confirmed. Additional SANS measurements after the postcreep solution annealing were made in order to differentiate cavities from the carbides. Potential advantages and difficulties associated with characterization of creep-induced cavitation by the SANS techniques are discussed.

• Research Organization: Oak Ridge National Lab., TN (USA)
• DOE Contract Number: AC05-84OR21400
• OSTI ID: 6496206
• Report Number(s): CONF-8409103-3; ON: DE85000933
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360102 -- Metals & Alloys-- Structure & Phase Studies
360103* -- Metals & Alloys-- Mechanical Properties
ALLOYS
CARBIDES
CARBON COMPOUNDS
CHROMIUM ALLOYS
CHROMIUM STEELS
CHROMIUM-NICKEL STEELS
COHERENT SCATTERING
CORROSION RESISTANT ALLOYS
CREEP
DIFFRACTION
ELECTRON MICROSCOPY
HEAT RESISTANT MATERIALS
HEAT RESISTING ALLOYS
IRON ALLOYS
IRON BASE ALLOYS
MATERIALS
MECHANICAL PROPERTIES
MICROSCOPY
NEUTRON DIFFRACTION
NICKEL ALLOYS
SCATTERING
SMALL ANGLE SCATTERING
STAINLESS STEEL-304
STAINLESS STEELS
STEELS
TRANSMISSION ELECTRON MICROSCOPY