Accession Number : AD0706376

Title :   THERMAL FATIGUE.

Descriptive Note : Annual summary rept. (Part 1) 1 Jul 65-30 Jun 66,

Corporate Author : TECHNISCHE HOCHSCHULE MUNICH (WEST GERMANY) INSTITUT FUER TECHNISCHE MECHANIK

Personal Author(s) : Neuber,Heinz ; Riege,Hans

Report Date : FEB 1970

Pagination or Media Count : 109

Abstract : Creep and thermal cycling tests with colddrawn Nimonic 80 A wires were performed at several stress levels. The deformation and fracture behavior was compared quantitatively. The changes of several physical and mechanical material properties, such as electrical resistivity, internal friction and hardness after thermal cycling and creep pretreatment, have been studied intensively. Creep and stress cycling tests at high temperatures were conducted in an electronic tensile testing machine and in a high frequency push-pull fatigue machine. Both testing machines are described and the principles of analysis for the treatment of cyclic stress tests are given. (Author)

Descriptors :   (*NICKEL ALLOYS, *FATIGUE(MECHANICS)), CREEP, THERMAL STRESSES, DEFORMATION, FRACTURE(MECHANICS), HIGH TEMPERATURE, WEST GERMANY

Subject Categories : Metallurgy and Metallography
      Solid State Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE