Microstructure of rapidly solidified Path A Prime-Candidate Alloys

Conference · Thu Jan 01 04:00:00 EST 1981

OSTI ID:5543065

Megusar, J; Arnberg, L; Vander Sande, J B; Grant, N J

Path A Prime-Candidate Alloy (PCA) has been rapidly solidified and its composition has been modified by increasing carbon and titanium content. Microstructural examination showed that rapid solidification allowed for a decrease in over-all segregation, elimination of coarse excess phases, an attainment of fine grain size and an increase in supersaturation of carbon and titanium in the PCA alloy. Structural modifications which include a reduction of grain size, an increase in TiC content and control of dislocation structure provide a high density of heterogeneous nucleation sites for helium trapping and are therefore expected to have an effect on swelling and high temperature strength of Path A alloys under irradiation.

• Research Organization: Massachusetts Inst. of Tech., Cambridge (USA)
• DOE Contract Number: AS02-78ER10107
• OSTI ID: 5543065
• Report Number(s): DOE/ER/10107-8; CONF-810831-71; ON: DE82006755
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700209* -- Fusion Power Plant Technology-- Component Development & Materials Testing
ALLOYS
BARYON REACTIONS
CARBIDES
CARBON ADDITIONS
CARBON COMPOUNDS
CHROMIUM ALLOYS
CORROSION RESISTANT ALLOYS
CRYSTAL STRUCTURE
ELEMENTS
HADRON REACTIONS
IRON ALLOYS
IRON BASE ALLOYS
MATERIALS
METALS
MICROSTRUCTURE
NEUTRON REACTIONS
NUCLEAR REACTIONS
NUCLEON REACTIONS
PHYSICAL RADIATION EFFECTS
RADIATION EFFECTS
STAINLESS STEELS
STEELS
SWELLING
THERMONUCLEAR REACTOR MATERIALS
TITANIUM
TITANIUM CARBIDES
TITANIUM COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS