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Mechanical Properties and Melt Quality Relationship of Sr-modified Al-12Si Alloy

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Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
The formation of oxide film on the surface of aluminium melts, i.e. bifilms, are known to be detrimental when they are incorporated into the cast part. These defects causes premature fractures under stress, or aid porosity formation. In this work, Al-12 Si alloy was used to cast a step mould under two conditions: as-received and degassed. In addition, 10 ppi filters were used in the mould in order to prevent bifilm intrusion into the cast part. Reduced pressure test samples were collected for bifilm index measurements. Samples were machined into standard bars for tensile testing. It was found that there was a good agreement with the bifilm index and mechanical properties.
Rocznik
Strony
134--140
Opis fizyczny
Bibliogr. 14 poz., rys., tab., wykr.
Twórcy
autor
  • Selcuk University, Faculty of Engineering, Metallurgical and Materials Eng. Dept., Konya-Turkey
autor
  • Selcuk University, Faculty of Engineering, Metallurgical and Materials Eng. Dept., Konya-Turkey
autor
  • Fatih Sultan Mehmet Vakıf University, Faculty of Engineering, Istanbul-Turkey
autor
  • Istanbul University, Faculty of Engineering, Metallurgical and Materials Eng. Dept., Istanbul-Turkey
Bibliografia
  • [1] Campbell, J. (2011). Complete Casting Handbook: Metal Casting Processes, Metallurgy, Techniques and Design. 2011: Elsevier Butterworth-Heinemann.
  • [2] Dispinar, D., et al., (2010). Degassing, hydrogen and porosity phenomena in A356. Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing. 527(16-17). 3719-3725.2.
  • [3] Dispinar, D., et al., (2012). Tensile properties, porosity and melt quality relation of A356. Tms 2012 141st Annual Meeting & Exhibition - Supplemental Proceedings, Vol 2: Materials Properties, Characterization, and Modeling, 201-208.
  • [4] Dispinar, D. & Campbell, J. (2004). Critical assessment of reduced pressure test. Part 1: Porosity phenomena. International Journal of Cast Metals Research. 17(5), 280-286.
  • [5] Dispinar, D. & Campbell, J. (2006). Use of bifilm index as an assessment of liquid metal quality. International Journal of Cast Metals Research. 19(1), 5-17.
  • [6] Dispinar, D. & Campbell, J. (2011). Porosity, hydrogen and bifilm content in Al alloy castings. Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing. 528(10-11), 3860-3865.
  • [7] Cáceres, C.H., Davidson, C.J. & Griffiths, J.R. (1995). The deformation and fracture behaviour of an Al-Si-Mg casting alloy. Materials Science and Engineering: A,. 197(2), 171-179.
  • [8] Caceres, C.H. & Griffiths, J.R. (1996). Damage by the cracking of silicon particles in an Al-7Si-0.4Mg casting alloy. Acta Materialia. 44(1), 25-33.
  • [9] Zhongwei, C., Ruijie, Z. (2010). Effect of strontium on primary dendrite and eutectic temperature of A357 aluminum alloy. Research & Development.
  • [10] Dahle, A.K., et al., (2005). Eutectic modification and microstructure development in Al–Si Alloys. Materials Science and Engineering: A. 413–414(0), 243-248.
  • [11] Ardekhani, A. & Raiszadeh, R. (2012). Removal of Double Oxide Film Defects by Ceramic Foam Filters. Journal of Materials Engineering and Performance,. 21(7), 1352-1362.
  • [12] Eisaabadi Bozchaloei, G., et al. (2012). Effect of oxide bifilms on the mechanical properties of cast Al–7Si–0.3Mg alloy and the roll of runner height after filter on their formation. Materials Science and Engineering: A. 548(0), 99-105.
  • [13] Fu Yuan Hsu et al., (2013). Ceramic Foam Filters in Runner System Design for Castings, Key Engineering Materials, 573, 19.
  • [14] Habibollah Zadeh, A., Campbell, J. (2013). Filter systems for high velocity liquid metal flow. International Journal of Cast Metals Research. 17(2), 99-106.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-3893da40-6c31-4ed5-9f89-b634ad754562
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