Analysis of isochronal calorimetric measurements of point defect elimination in a quenched Co<sub>48</sub>Ga<sub>52</sub>intermetallic compound

Relaxation behavior of supersaturated vacancies in water-quenched and rapidly solidified B2 type CoAl and NiAl with the stoichiometric composition was studied by differential scanning calorimetry (DSC). In both CoAl and NiAl quenched from 1773 K, a single exothermic peak due mainly to the recovery of supersaturated vacancies appeared near 950 K. On the other hand, the exothermic peak was also observed in as-spun rapidly solidified CoAl and NiAl ribbons, and the temperature range of the peak was much broader than that of quenched-in bulks, suggesting that the peak in the rapidly solidified ribbons results from not only a single recovery process of vacancies but also those of some other lattice defects. TEM observation showed that a large amount of dislocations were introduced in the NiAl ribbon and that comparatively many voids as well as an amount of dislocations were introduced in the CoAl ribbon.

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Analysis of isochronal calorimetric measurements of point defect elimination in a quenched Co₄₈Ga₅₂intermetallic compound

Cited by 3 publications

References 19 publications

Equilibrium vacancies and thermophysical properties of metals

Equilibrium vacancies and thermophysical properties of metals

Magnetic and calorimetric study of point defects in FeAl intermetallic compound

Thermal Analysis of Relaxation Processes of Supersaturated Vacancies in B2-Type Aluminides

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Analysis of isochronal calorimetric measurements of point defect elimination in a quenched Co48Ga52intermetallic compound

Cited by 3 publications

References 19 publications

Equilibrium vacancies and thermophysical properties of metals

Equilibrium vacancies and thermophysical properties of metals

Magnetic and calorimetric study of point defects in FeAl intermetallic compound

Thermal Analysis of Relaxation Processes of Supersaturated Vacancies in B2-Type Aluminides

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Product

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Analysis of isochronal calorimetric measurements of point defect elimination in a quenched Co₄₈Ga₅₂intermetallic compound