Accession Number:

ADA010113

Title:

The Influence of Prior Creep on the Fatigue Strength of AK4-1-T1 Alloy (Vliyanie Predvaritelnoi Polzuchesti na Vynoslivost Splava AK4-1-T1),

Descriptive Note:

Corporate Author:

ROYAL AIRCRAFT ESTABLISHMENT FARNBOROUGH (ENGLAND)

Personal Author(s):

• Vorobev,A. V.
• Olkin,S. I.
• Stebenev,V. N.

Report Date:

1975-03-01

Pagination or Media Count:

13.0

Abstract:

Results are given from an experimental study of the effect of prior creep at moderately elevated temperatures on the fatigue characteristics of notched specimens of AK4-1-T1 alloy. It has been shown that the effect of creep on fatigue strength is governed by a large number of factors structural changes and relaxation of manufacturing residual stresses, dependent on the long-term action of temperature residual stresses formed in regions of stress concentration as a result of non-uniform total creep cold working formation of microcracks or voids, which may either decrease or increase fatigue life.

Descriptors:

• *ALLOYS
• USSR
• STRENGTH(MECHANICS)
• CREEP
• FATIGUE(MECHANICS)
• TRANSLATIONS
• TITANIUM ALLOYS

Subject Categories:

• Metallurgy and Metallography

Distribution Statement:

APPROVED FOR PUBLIC RELEASE