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Shape Casting pp 311-320 | Cite as

Relation Between Microstructure and Tensile Properties of V and B Added Al-7Si Alloy

  • Özkan Kesen
  • Ahmet Can Filiz
  • Selim Temel
  • Özen Gürsoy
  • Eray Erzi
  • Derya DispinarEmail author
Conference paper
Part of the The Minerals, Metals & Materials Series book series (MMMS)

Abstract

It is known that vanadium and boron elements are used as grain refiners. In this study, it was aimed to increase the mechanical properties of A356 by grain refinement. Boron and vanadium elements were added in an amount of 0.05 wt% and 0.1 wt%. Al–10 V and Al–3B master alloys were used. The melts were casted into sand and permanent molds at 730 °C. The cast samples were investigated by several tests: metallographic examination for microstructure and porosity measurements, tensile tests, and hardness tests for mechanical property characterization. Additionally, bifilm index was examined by reduced pressure test (RPT). The effect of alloying elements on the distribution, size, and shape of porosities has been determined. Weibull analysis was used. In both V and B additions, sand castings with larger grain size revealed higher and more reliable tensile values than permanent castings.

Keywords

Aluminum Vanadium Boron Casting Grain refinement 

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Copyright information

© The Minerals, Metals & Materials Society 2019

Authors and Affiliations

  • Özkan Kesen
    • 1
  • Ahmet Can Filiz
    • 1
  • Selim Temel
    • 1
  • Özen Gürsoy
    • 1
  • Eray Erzi
    • 1
  • Derya Dispinar
    • 1
    Email author
  1. 1.Faculty of Engineering, Department of Metallurgy and Materials EngineeringIstanbul University CerrahpasaAvcilar, IstanbulTurkey

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