Accession Number:

AD0613952

Title:

Beryllium Research and Development Program. Volume 6. Influence of the Distribution of Oxide and of the Total Impurity Level on Recrystallization and Grain Growth of Beryllium

Descriptive Note:

Final rept. for 1 Oct 1961-1 Oct 1963

Corporate Author:

NUCLEAR METALS INC CONCORD MA

Report Date:

1965-02-01

Pagination or Media Count:

97.0

Abstract:

Conclusions are a Increase of the impurity content in beryllium raises the recrystallization temperature and decreases the tendency for grain growth by restraining the movement of grain boundaries. b At high levels of deformation, the distribution of oxide does not seem to be fundamentally different for the material originating from the different types of powder. c The layers of oxide effectively restrain the motion of grain boundaries to the point of making grain growth negligible but do not always constitute an insurmountable barrier for these boundaries. d In all cases, the conditions of fabrication play a fundamental role in the subsequent behavior of the metal, especially with respect to the mechanical properties.

Subject Categories:

  • Metallurgy and Metallography

Distribution Statement:

APPROVED FOR PUBLIC RELEASE