Accession Number:

AD0725006

Title:

The Nature of the Change in Strength of Certain Materials During Creep,

Descriptive Note:

Corporate Author:

FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO

Personal Author(s):

• Shulginov,B. S.
• Lukashov,V. K.

Report Date:

1971-02-05

Pagination or Media Count:

9.0

Abstract:

Test procedures, special equipment, and test results from research on the change in stress-rupture and tensile strength of steel 1Kh18N9T and the Al-alloy D16T are described. It was established that during creep softening of the material proceeds according to a complex law. Intensive softening occurs at the beginning and at the end of the creep the intermediate period of creep is characterized by virtually stable strength values. The possibility of sudden failure under overload of certain materials subjected to prolonged subcritical steady-state loading is demonstrated. Author

Descriptors:

• (*CREEP STRENGTH
• ALLOYS)
• (*ALUMINUM ALLOYS
• CREEP STRENGTH)
• (*STAINLESS STEEL
• CREEP STRENGTH)
• PHASE STUDIES
• STRESSES
• TENSILE PROPERTIES
• REDUCTION OF AREA
• RUPTURE
• TEST EQUIPMENT
• TEST METHODS

Subject Categories:

• Properties of Metals and Alloys

Distribution Statement:

APPROVED FOR PUBLIC RELEASE