Effect of oxygen on mechanical properties of Nb-V alloy

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

OSTI ID:6141276

Carlson, O N; Indrawirawan, H

The results of a study of the effect of oxygen on the mechanical properties of a Nb-10 at. % V alloy are described. The effect of oxygen on the tensile yield strength, ductility and strain rate sensitivity were determined as a function of temperature for the range of 78 to 300/sup 0/K. The effect of vanadium on the oxygen Snoek peak in niobium was determined as a function of vanadium concentration. It was observed that the addition of up to 10 at. % vanadium shifts the oxygen peak temperature upward about 80/sup 0/K. The activation energy for relaxation of oxygen increases from 108.8 KJ/mole for pure niobium to 154 KJ/mole for 2.5 at. % V and to 200 KJ/mole for 10 at. % V. A possible interpretation of these observations is presented in terms of a substitutional-interstitial solute interaction.

• Research Organization: Ames Lab., IA (USA)
• DOE Contract Number: W-7405-ENG-82
• OSTI ID: 6141276
• Report Number(s): IS-M-521; CONF-8409179-3; ON: DE85002681
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360103* -- Metals & Alloys-- Mechanical Properties
ALLOYS
ELEMENTS
MECHANICAL PROPERTIES
METALLURGICAL EFFECTS
NIOBIUM ALLOYS
NIOBIUM BASE ALLOYS
NONMETALS
OXYGEN
VANADIUM ALLOYS