Published November 1981 | Version v1
Journal article Metadata-only

On the thermal cyclic loading behaviour of a directional eutectic superalloy based on the Co-Cr-C system

Creators

  • 1. Brown, Boveri und Cie A.G., Mannheim (Germany, F.R.). Zentralstelle fuer Werkstoff-Technik
  • 2. Brown, Boveri und Cie A.G., Heidelberg (Germany, F.R.). Zentrales Forschungslabor

Description

Various modifications of the eutectic, directionally solidified superalloy 73 C were investigated with respect to creep fatigue effects. This was carried out using a thermal cycling apparatus where a mechanical uniaxial load could be applied. A high volume fraction of carbides had an impairing effect on fatigue life. An improvement, however, could be obtained using low concentrations of refractory elements which form monocarbides. (orig.)

Abstract (German)

Verschiedene Varianten der eutektischen, gerichtet erstarrten Superlegierung 73 C wurden im Hinblick auf die Kriechermuedungsfestigkeit untersucht. Dies geschah mit einer Thermoschockapparatur mit zusaetzlich angelegter einachsiger mechanischer Spannung. Es ergab sich eine Verschlechterung bei hohem Karbidanteil. Monokarbidbildende refraktaere Legierungselemente in geringen Konzentrationen verbesserten hingegen das Kriechermuedungsverhalten. (orig.)

Additional details

Publishing Information

Journal Title
Z. Werkstofftech.
Journal Volume
12
Journal Issue
11
Series
Z. Werkstofftech.
Journal Page Range
383-386
ISSN
0049-8688

INIS

Country of Publication
Germany
Country of Input or Organization
Germany
INIS RN
13668161
Subject category
S36: MATERIALS SCIENCE;
Descriptors DEI
ALUMINIUM ALLOYS; CHEMICAL COMPOSITION; CHROMIUM ALLOYS; CHROMIUM CARBIDES; COBALT BASE ALLOYS; COMPOSITE MATERIALS; CREEP; DOPED MATERIALS; EUTECTICS; FATIGUE; FIBERS; SOLID SOLUTIONS; THERMAL CYCLING; TRACE AMOUNTS
Descriptors DEC
ALLOYS; CARBIDES; CARBON COMPOUNDS; CHROMIUM COMPOUNDS; COBALT ALLOYS; DISPERSIONS; HOMOGENEOUS MIXTURES; MECHANICAL PROPERTIES; MIXTURES; SOLUTIONS; TRANSITION ELEMENT ALLOYS; TRANSITION ELEMENT COMPOUNDS