Accession Number:

AD0694417

Title:

INVESTIGATION OF Al-Be ALLOYS WITH Y, La AND Ce ADDITIVES UP TO 33.3 AT. %,

Descriptive Note:

Corporate Author:

ARMY FOREIGN SCIENCE AND TECHNOLOGY CENTER WASHINGTON D C

Personal Author(s):

• Zarechnyuk,O. S.
• Vivchar,O. I.
• Frankevich,D. P.

Report Date:

1969-09-09

Pagination or Media Count:

9.0

Abstract:

Various properties of Y-Be-Al, La-Be-Al, and Ce-Be-Al systems were compared. In the region of 0.33.3 at. REM content, all three form single ternary compounds D-phase in La-Be-Al and Ce-Be-Al and D-phase in the Y-Be-Al system. They differ in that in the Yttrium and Lanthanum systems the compounds phase D or D is in equilibrium with Aluminum, and in the Cerium system it is not. The ternary compound which forms in the Y-Be-Al systems is not isostructural with the compounds of La and Ce and contains more Aluminum than they do. It is concluded that the Y-Be-Al and La-Be-Al systems resemble each other and differ from the Ce-Be-Al system in the character of the phase equilibrium, whereas the La-Be-Al and Ce-Be-Al compounds are more closely related in the type of crystalline structure which forms. Author

Descriptors:

• (*ALUMINUM ALLOYS
• PHASE STUDIES)
• BERYLLIUM ALLOYS
• CERIUM ALLOYS
• YTTRIUM COMPOUNDS
• LANTHANUM COMPOUNDS
• INTERMETALLIC COMPOUNDS
• USSR

Subject Categories:

• Properties of Metals and Alloys

Distribution Statement:

APPROVED FOR PUBLIC RELEASE