Impact of major alloying elements on the solodification parameters of cast hypoeutectic AlSi6Cu (1–4 wt.%) and AlSi8Cu(1−4 wt.%) alloys
The present work displays the potential of cooling curve analysis to characterize the solidification path of cast hypoeutectic series of Al-Si6-Cu(1−4 wt.%) and Al-Si8- Cu(1−4 wt.%) alloys. The aim of this work was to examine how variation in chemical composition of silicon and copper may affect characteristic solidification temperatures, fraction solid, and thermal freezing range of investigated alloys. Eight different Al−Si−Cu alloys (Al-Si6-Cu1, Al-Si6-Cu2, Al-Si6-Cu3, Al-Si6-Cu4, Al-Si8-Cu1, AlSi8-Cu2, Al-Si8-Cu3 and Al-Si8-Cu4) have been analyzed applying cooling curve analysis technique. Characteristic solidification temperatures have been determined using cooling curves or their corresponding first derivative curves along with ΔT curves. Fraction solid curves determined from recorded cooling curves have been used to calculate terminal freezing range and estimate crack susceptibility coefficient for each alloy. Theoretical mode for prediction of the cracking susceptibility coefficient developed by Clyne and Davies has been considered in this work. In addition, a novel mathematical model for prediction of crack susceptibility coefficient based on data collected from cooling curve analysis has been proposed.
L. Bäckerud, G. Chai, J. Tamminen, Solidification Characteristics of Aluminum Alloys, Volume 2, AFS/SKANALUMINIUM, Oslo, 1986.
C.H. Caceres, M. B. Djurdjevic, T. J. Stockwell, J. H. Sokolowski, Scripta Materialia, 40 (1999) 631−637.
M.B. Djurdjevic, T. Stockwell, J. Sokolowski, International Journal of Cast Metals Research, No. 12 (1999) 67−73.
H.W. Doty, A.M Samuel, F.H. Samuel, Factors Controlling the Type and Morphology of Cu-Containing Phases in the 319 Aluminum Alloy, 100th AFS Casting Congress, Philadelphia, Pennsylvania, USA, April 20-23, pp. 1−30 (1996).
S. Argyropoulos, B. Glosset, J. Gruzleski, H. Oger, AFS Transaction, 27 (1983) 351−358.
G.K. Sigworth, AFS Transaction, 66 (1983) 7−16.
L. Wang, S. Shivkumar; Journal of Material Science, 30 (1995) 1584−1594.
M. Garat, G. Laslaz, S. Jacob, P. Meyer et. al., AFS Transaction, 146 (1992) 821−832.
D. Apelian, G. K. Sigworth and K. R. Wahler, AFS Transaction, 161 (1984) 297−307.
E. Fras, W. Kapturkiewicz, A. Burbielko, H.F. Lopez, AFS Transactions, 101 (1993) 505−511.
W.T. Kierkus and J.H. Sokolowski, AFS Transactions, 66 (1999) 161−167.
T. Pabel, S. Bozorgi, C. Kneissl, K. Haberl, P. Schumacher, Giesserei Praxis Nr. 12 (2010) 388−394.
M.B. Djurdjevic and R. Schmid-Fetzer, Materials Science and Engineering A, 417 (2006) 24−33.
L. Shimin, Hot tearing in cast aluminum alloys, Ph Dissertation, Worcester polytechnic institute, April 2010.
T. W. Clyne and G. J. Davies, Solidification and Casting of Metals, Proc. Conf. on Solidification and Castings of Metals, Anonymous Metals Society, pp. 275-278. (1979)
M. B. Djurdjevic, G. Huber, Journal of alloys and compounds, 509 (2014) 500−506.
L. Bäckerud, G. Chai, J. Tamminen, Solidification Characteristics of Aluminum Alloys, Vol. 3: Foundry Alloys, AFS/ScanAluminium, Oslo, Norway, 1990.
Stangeland, A. Mo, Ø. Dielsen, D. Eskin, M. Hamdi, Metallurgical and Materials Transactions A, 35 (2004) 2903−2915.
D.G. Eskin, S.J.F. Mooney, L. Katgerman, Metallurgical and Materials Transactions A, 35(4) (2004) 1325−1335.
S.M. Nabulsi, The behavior of partially solidified aluminum-silicon alloys in a direct shear cell. 1997, PhD Thesis: The University of Queensland: Australia.
T. Sumitomo, D.H. StJohn, T. Steinberg, Materials Science and Engineering A, 289(1−2) (2000) 18−29.
M. Dash, M. Makhlouf, Journal of Light Metals 1 (2009) 251−265.
J.E. Gruzleski, B.M. Closset, The treatment of liquid aluminum-silicon alloys American Foundryman’s Society, Inc. Des Plaines, Illinois, USA, 1990.
N. Tenekedjiev, H. Mulazimoglu, B. Closset, J. Gruzleski, Microstructures and Thermal Analysis of Strontium-Treated Aluminum-Silicon Alloys, American Foundryman’s Society, Inc. Des Plaines, Illinois, USA, pp. 40−41, 1995.
M.B. Djurdjevic, D. Muche, B. Stauder, K. Eigenfeld, Praktische Metallographie Vol. 49, 2012, Nr. 06, pp. 356-376.
B. Stauder, M.B. Djurdjevic, M. Rafetzeder, G.Zerling, G. Huber, Das Rolle von Begleitelementen in Aluminiumgusslegierungen–Untersuchungen in interdisziplinären Arbeit zwischen Universitäten und Industrie, Grosse Giessereitechnische Tagung 2012, Salzburg, 26−27 April 2012.
M.B. Djurdjevic, Z. Odanovic, N. Talijan, Journal of metals, 63(11) (2011) 51−57.
Authors who publish with this journal agree to the following terms:
- Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
- Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
- Authors are permitted and encouraged to post their published articles online (e.g., in institutional repositories or on their website, social networks like ResearchGate or Academia), as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).
Except where otherwise noted, the content on this site is licensed under a Creative Commons Attribution 4.0 International License.