Shape Casting pp 329-336 | Cite as

Effect of Copper and Nickel Addition on Mechanical Properties of A356 Alloy and Assessment of Mechanism of Pore Formation

  • Kerim YildirimEmail author
  • Johannes Brachmann
  • Derya DispinarEmail author
  • Andreas Bührig-Polaczek
  • Uwe Vroomen
Conference paper
Part of the The Minerals, Metals & Materials Series book series (MMMS)


In this study, changes in mechanical properties and hot tearing properties were investigated by adding 0.2 wt% Ni and 2 wt% Cu to Al–Si–Mg alloy. In addition, the porosity formation with regard to liquid metal cleanliness was investigated. Casting experiments have been carried out in certain compositions. The melt was degassed and up-gassed slowly. Micro100 alloy was added to the melt to investigate the effect of the distribution of porosity on the mechanical properties. A ring permanent mould was used to test the hot tearing characteristic and a tensile test bars were poured into permanent mould to test the mechanical properties.


Hot tearing Tensile properties Degassing Porosity Hydrogen 



I am very grateful to Dr.-Ing. Uwe Vroomen for giving me the opportunity and great support to this study.

I would like to thank Johannes Brachmann for guidance and support through the course of my thesis, and for his excellent supervision during the entirety of this study.

I would like to express my gratitude to Associate Professor Dr. Derya Dispinar for his scientific opportunities, and for his enthusiastic support and advice.


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Copyright information

© The Minerals, Metals & Materials Society 2019

Authors and Affiliations

  1. 1.RWTH Aachen University, Foundry InstituteAachenGermany
  2. 2.Istanbul University, Engineering Faculty, Metallurgical and Materials EngineeringIstanbulTurkey

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