Accession Number : AD0725006

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

Corporate Author : FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO

Personal Author(s) : Shulginov,B. S. ; Lukashov,V. K.

Report Date : 05 FEB 1971

Pagination or Media Count : 9

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