Stress relaxation in tension of CA 172 copper--beryllium

Journal Article · Wed Jan 01 00:00:00 EST 1975 · J. Test. Eval., v. 3, no. 1, pp. 62-67

OSTI ID:4173900

Goel, R P

Stress relaxation data on commercially available copper-beryllium alloy 172 are presented. Test samples were subjected to strains of up to 2 percent and temperatures from 25 to 181$sup 0$C. The data show that a high degree of relaxation occurs at higher temperatures and relaxation was found to be independent of the initial stress levels. Time-temperature plots of stress relaxation are presented for designing accelerated relaxation tests on the copper- berylluim alloy tested. The material in the tested condition is generally not used in spring applications and thus results of Austen which compare stress relaxation characteristics of copper-beryllium alloy 172 in the aged and unaged conditions are also presented. (auth)

• Research Organization: Bell Telephone Labs., Inc., Columbus, OH
• NSA Number: NSA-33-006007
• OSTI ID: 4173900
• Journal Information: J. Test. Eval., v. 3, no. 1, pp. 62-67, Other Information: Orig. Receipt Date: 30-JUN-76
• Country of Publication: United States
• Language: English

Related Subjects

N50230* -Metals
Ceramics
& Other Materials-Metals & Alloys-Properties
Structure & Phase Studies
360103* -Materials-Metals & Alloys-Mechanical Properties
*BERYLLIUM ALLOYS- STRESS RELAXATION
*COPPER BASE ALLOYS- STRESS RELAXATION
AGING
BINARY ALLOY SYSTEMS
HIGH TEMPERATURE
MEDIUM TEMPERATURE
TEMPERATURE DEPENDENCE