Uses of AES and RGA to study neutron-irradiation-enhanced segregation to internal surfaces

Conference · Tue Jan 01 00:00:00 EST 1980

OSTI ID:6609278

Gessel, G R; White, C L

The high flux of point defects to sinks during neutron irradiation can result in segregation of impurity or alloy additions to metals. Such segregants can be preexisting or produced by neutron-induced transmutations. This segregation is known to strongly influence swelling and mechanical properties. Over a period of years, facilities have been developed at ORNL incorporating AES and RGA to examine irradiated materials. Capabilities of this system include in situ tensile fracture at elevated temperatures under ultrahigh vacuum 10/sup -10/ torr and helium release monitoring. AES and normal incidence inert ion sputtering are exploited to examine segregation at the fracture surface and chemical gradients near the surface.

• Research Organization: Oak Ridge National Lab., TN (USA)
• DOE Contract Number: W-7405-ENG-26
• OSTI ID: 6609278
• Report Number(s): CONF-800205-15; TRN: 81-006171
• Resource Relation: Conference: American Institute of Metallurgical Engineers meeting, Las Vegas, NV, USA, Feb 1980
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
ALLOYS
MICROSTRUCTURE
PHYSICAL RADIATION EFFECTS
AUGER ELECTRON SPECTROSCOPY
POINT DEFECTS
TENSILE PROPERTIES
CRYSTAL DEFECTS
CRYSTAL STRUCTURE
ELECTRON SPECTROSCOPY
MECHANICAL PROPERTIES
RADIATION EFFECTS
SPECTROSCOPY
360106* - Metals & Alloys- Radiation Effects
440103 - Radiation Instrumentation- Nuclear Spectroscopic Instrumentation