Shape Casting pp 151-157 | Cite as

Casting Defect Analysis on Fracture Surface of 356 Aluminium Alloy

  • Özen GürsoyEmail author
  • Eray Erzi
  • Derya Dispinar
Conference paper
Part of the The Minerals, Metals & Materials Series book series (MMMS)


Investigation of the fracture surface is an effective method in characterizing casting defects. Some data can be collected such as the population of defects and initiation of fracture by means of investigation of fracture surface via a scanning electron microscope (SEM). In this study, tensile test samples from two different 356 aluminium melts that have good and quite bad quality were poured into die and sand moulds under two different conditions: no addition and Al–Ti–B grain refiner addition. After the tensile test, casting defects in fracture surfaces are analysed and classified via SEM. The area fraction of defects (AFD) is created and correlated with bifilm index and tensile properties such as UTS and elongation.


Defect Fracture surface Tensile Melt quality Bifilm 


  1. 1.
    Caceres CH, Selling BI (1996) Casting defects and the tensile properties of an AlSiMg alloy. Mater Sci Eng A 220(1–2):109–116CrossRefGoogle Scholar
  2. 2.
    Surappa MK (1986) Effect of macro-porosity on the strength and ductility of cast Al-7 Si-0.3 Mg alloy. Scr Metall 20(9):1281–1286CrossRefGoogle Scholar
  3. 3.
    Teng X, Mae H, Bai Y, Wierzbicki T (2009) Pore size and fracture ductility of aluminum low pressure die casting. Eng Fract Mech 76(8):983–996CrossRefGoogle Scholar

Copyright information

© The Minerals, Metals & Materials Society 2019

Authors and Affiliations

  1. 1.Metallurgical and Material Engineering DepartmentIstanbul University-CerrahpasaIstanbulTurkey

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