Factors influencing the creep strength of hot pressed beryllium

Journal Article · Fri Oct 31 23:00:00 EST 1975 · Metall. Trans., A, v. 6A, no. 11, pp. 2049-2054

DOI:https://doi.org/10.1007/BF03161830· OSTI ID:4072802

Webster, D; Crooks, D D

The parameters controlling the creep strength of hot pressed beryllium block have been determined. Creep strength was improved by a high initial dislocation density, a coarse grain size, and a low impurity content. The impurities most detrimental to creep strength were found to be aluminum, magnesium, and silicon. A uniform distribution of BeO was found to give creep strength which was inferior to a grain boundary distribution. The creep strength of very high purity, hot isostatically pressed beryllium was found to compare favorably with that of other more commonly used high temperature metals. (auth)

• Research Organization: Lockheed Palo Alto Research Lab., CA
• Sponsoring Organization: USDOE
• NSA Number: NSA-33-015290
• OSTI ID: 4072802
• Journal Information: Metall. Trans., A, v. 6A, no. 11, pp. 2049-2054, Journal Name: Metall. Trans., A, v. 6A, no. 11, pp. 2049-2054; ISSN MTTAB
• Country of Publication: United States
• Language: English

Related Subjects

*BERYLLIUM-- CREEP
360102* --Materials--Metals & Alloys--Structure & Phase Studies
ALUMINIUM ADDITIONS
DISLOCATIONS
GRAIN SIZE
HOT PRESSING
IMPURITIES
MAGNESIUM ADDITIONS
N50230* --Metals
Ceramics
& Other Materials--Metals & Alloys--Properties
Structure & Phase Studies
SILICON ADDITIONS