• English
  • Deutsch
  • Log In
    Password Login
    Research Outputs
    Fundings & Projects
    Researchers
    Institutes
    Statistics
Repository logo
Fraunhofer-Gesellschaft
  1. Home
  2. Fraunhofer-Gesellschaft
  3. Artikel
  4. Experimental investigation of the damage characteristics of two cast aluminium alloys: Pt.III - Influence of the local microstructure and initial defect size on the fatigue properties
 
  • Details
  • Full
Options
2021
Journal Article
Title

Experimental investigation of the damage characteristics of two cast aluminium alloys: Pt.III - Influence of the local microstructure and initial defect size on the fatigue properties

Abstract
In the present paper, the influence of locally varying microstructures in case of an AlSi12 cast aluminium alloy is investigated by means of extracting the test pieces from different removal positions and low cycle fatigue tests. The temperature-dependent damage mechanisms, the material specific defect types, sizes and their influence on the fatigue properties of two AlSi7 and AlSi12 cast aluminium alloys are studied. An extreme value statistics methodology is applied to predict maximum defect sizes expected in a critical surface volume from two-dimensional metallographic micrographs. A damage map for the AlSi12 cast aluminium alloy is presented explaining the influence of the temperature- and load-dependent damage mechanisms on the observed isothermal and thermomechanical lifetime behavior.
Author(s)
Fischer, C.
Fraunhofer-Institut für Werkstoffmechanik IWM  
Schweizer, C.
Fraunhofer-Institut für Werkstoffmechanik IWM  
Journal
International journal of fatigue  
Funder
Bundesministerium für Wirtschaft und Energie BMWi (Deutschland)  
DOI
10.1016/j.ijfatigue.2021.106388
Language
English
Fraunhofer-Institut für Werkstoffmechanik IWM  
Keyword(s)
  • cast aluminium alloy

  • damage mechanisms

  • extreme value statistics

  • initial defect size

  • low cycle fatigue

  • Cookie settings
  • Imprint
  • Privacy policy
  • Api
  • Contact
© 2024