Effects of Si and Ti on the phase stability and swelling behavior of AISI 316 stainless steel. [Neutron and heavy ion irradiations]

Conference · Sun Jan 01 00:00:00 EST 1978

OSTI ID:5394090

Lee, E. H.; Rowcliffe, A. F.; Kenik, E. A.

Swelling behavior of neutron irradiated stainless steels is influenced by solute segregation and preciptation phenomena. The extent to which in-reactor swelling behavior may be simulated by heavy ion irradiation depends upon the extent to which in-reactor phase changes are reproduced; this question is addressed by comparing the precipitation behavior under neutron irradiation with behavior during 4 MeV Ni ion irradiation for AISI 316 stainless steel and a related stainless steel containing additions of titanium and silicon. The results are discussed qualitatively in terms of the effects of damage rate on solute segregation and the effects of displacement cascades on the dissolution of particles. It is shown that the partitioning of elements into various phases during irradiation is not a sufficient condition for the initiation of swelling in stainless steels modified with silicon and titanium. It is also necessary for helium to be generated simultaneously with the breakdown of the matrix into various phases; it is believed that helium trapping at the growing particle-matrix interface is responsible for the observed physical association between voids and precipitates.

• Research Organization: Oak Ridge National Lab., TN (USA)
• Sponsoring Organization: USDOE
• DOE Contract Number: W-7405-ENG-26
• OSTI ID: 5394090
• Report Number(s): CONF-781194-5; TRN: 80-008010
• Resource Relation: Conference: Workshop on solute segregation and phase stability during irradiation, Gatlinburg, TN, USA, 1 Nov 1978
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
STAINLESS STEEL-316
PHYSICAL RADIATION EFFECTS
CHROMIUM ALLOYS
IRON BASE ALLOYS
MANGANESE ALLOYS
MOLYBDENUM ALLOYS
NICKEL ALLOYS
SILICON ALLOYS
IONS
METALLURGICAL EFFECTS
NEUTRONS
PHASE STUDIES
SEGREGATION
SILICON
SWELLING
TITANIUM
TITANIUM ADDITIONS
ALLOYS
BARYONS
CHARGED PARTICLES
CHROMIUM STEELS
CHROMIUM-NICKEL STEELS
CORROSION RESISTANT ALLOYS
ELEMENTARY PARTICLES
ELEMENTS
FERMIONS
HADRONS
HEAT RESISTANT MATERIALS
HEAT RESISTING ALLOYS
IRON ALLOYS
MATERIALS
METALS
NUCLEONS
RADIATION EFFECTS
SEMIMETALS
STAINLESS STEELS
STEELS
TITANIUM ALLOYS
TRANSITION ELEMENTS
360106* - Metals & Alloys- Radiation Effects