Distribution of carbon, nitrogen, and oxygen in heavy-ion irradiated vanadium and some vanadium alloys. [Heavy ion irradiation]

Thesis/Dissertation · Tue Jan 01 00:00:00 EST 1980

OSTI ID:5482637

Grabowski, K S

The depth distribution of C, N, and O was measured in the damage layer of a series of heavy-ion irradiated samples of V and V alloyed with C, O, N, Cr, or Ti. Ion-beam analysis using the simultaneously induced nuclear reactions /sup 12/C(d,p/sub o/)/sup 13/C, /sup 16/O(d,p/sub l)/sup 17/O, and /sup 14/N(d,..cap alpha../sub l/)/sup 12/C provided the C, N, and O distributions to a depth of 2 ..mu..m. The profiles were studied as a function of irradiation temperature and displacement dose produced by MeV V or Ar ions. Displacement dose rates of approx.3 x 10/sup -3/ dpa/s provided peak-damage doses of up to approx.30 dpa, at irradiation temperatures between 250 and 880/sup 0/C. The dominant effect observed was a large enrichment of C, up to approx.20 times the bulk C concentration, in the damage zone of most of the irradiated samples. The C enrichment occurred between approx.400 and approx.700/sup 0/C, and increased with irradiation dose. A similar enrichment of C occurred on the sample surface over the same temperature range. The surface C enrichment was associated with V/sub 3/C precipitates on the sample surface, while the damage-zone C enrichment was associated with an irradiation-induced coherent )012) habit-plane precipitate.

• Research Organization: Michigan Univ., Ann Arbor (USA)
• OSTI ID: 5482637
• Resource Relation: Other Information: Thesis (Ph.D.)
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
VANADIUM
IRRADIATION
PHYSICAL RADIATION EFFECTS
VANADIUM ALLOYS
CARBON ADDITIONS
CHEMICAL ANALYSIS
CHROMIUM ALLOYS
DISPLACEMENT RATES
ENRICHMENT
NITROGEN ADDITIONS
OXYGEN ADDITIONS
TITANIUM ALLOYS
VERY HIGH TEMPERATURE
ALLOYS
ELEMENTS
METALS
RADIATION EFFECTS
TRANSITION ELEMENTS
360106* - Metals & Alloys- Radiation Effects