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Vacancy and Helical Dislocation in the Rapidly Quenched Copper Alloys

Ding Houfu (Hefei University of Technology)  
The crystal imperfections in the rapidly quenched Cu-Cr-0.05Zr alloys has been observed under TEM. Results show that the supersaturated solidification Cr-content increases in the rapidly quenched alloys induced the great increase of vacancy density and production of vacancy plates.The rapidly quenched copper alloys containning high density vacancies produced helical dislocations during aging. The production of vacancy plates and helical dislocations which is closely related to high density vacancies is one of the important factors in strengthening of Cu-Cr-0.05Zr alloys during rapidly quenching.
【CateGory Index】: TG146.11
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