Influence of Molybdenum on the Thermal, Structural Properties and Micro Hardness of AlSi10Mg(Cu) Alloy

• Autorzy: Hajduch P. , Bolibruchova D. , Djurdjevic M.

Identyfikatory

DOI

10.24425/123595

• Języki publikacji: EN

Abstrakty

EN

This work is dealing with the impact of molybdenum on the structure properties of commercial cast AlSi10Mg(Cu) alloy. The solidification path of AlSi10Mg(Cu) alloy with various content of molybdenum has been investigated using cooling curve techniques. The samples for testing have been poured into permanent steel mold. The content of molybdenum has been varied from 0 to 0.20 wt. %.The desired chemical composition was achieved by adding of master alloy AlMo10 into commercial AlSi10Mg(Cu) alloy. The micro hardness of as cast alloys with different content of molybdenum has been measured. The microstructure and EDX analysis from the casted samples has been carried out. The results show that molybdenum in commercial AlSi10Cu(Mg) alloy precipitate in the interdendritic region isolated in the form of Al(FeMnMoMg)Si rich intermetallic. The increased content of molybdenum increase slightly liquidus temperature, prolonging precipitation of the last eutectic and surprisingly decrease the micro hardness of commercial alloy for approximately 16 %.

Słowa kluczowe

EN

alloy AlSiMgCu; influence of molybdenum; thermal analysis; micro hardness

PL

stop AlSiMgCu; wpływ molibdenu; analiza termiczna; mikrotwardość

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2018
• Tom: Vol. 18, iss. 3
• Strony: 19--24
• Opis fizyczny: Bibliogr. 16 poz., fot., tab., wykr.

Twórcy

autor

Hajduch P.

• Nemak Linz, Austria
• University of Žilina, Department of technological engineering, Slovakia

autor

Bolibruchova D.

• University of Žilina, Department of technological engineering, Slovakia

autor

Djurdjevic M.

• Nemak Linz, Austria

Bibliografia

• [1] Bäckerud, L., Chai, G. & Tamminen, J. (1986). Solidification Characteristics of Aluminum Alloys. AFS/Skanaluminium. 2, Oslo.
• [2] Caceres, C.H., Djurdjevic, M.B., Stockwell, T.J. & Sokolowski, J.H. (1999). The Effect of Cu Content on the Level of Microporosity in Al-Si-Cu-Mg Casting Alloys. Scripta Materialia. 40, 631-637.
• [3] Djurdjevic, M., Stockwell, T. & Sokolowski, J. (1999). The Effect of Strontium on the Microstructure of the Aluminum-Si and Aluminum-Cu Eutectics in the 319 Aluminum Alloy. International Journal of Cast Metals Research. 12.
• [4] Bolibruchová, D. & Žihalová, M. (2014). Vanadium influence on iron based intermetallic phases in AlSi6Cu4. Archives of Metallurgy and Materials. 59(3), 1029-1032.
• [5] Doty, H.W., Samuel, A.M., Samuel, F.H. (1996). 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, (1-30).
• [6] Cibula, A. (1951). The Grain Refinement of Aluminum Alloy Castings by Additions of Titanium and Boron. Journal of the Institute of Metals. 1951-1952,80, 1-16.
• [7] Sparkman, D. & Kearney, A. (1994). Breakthrough in Aluminum Alloy Thermal Analysis Technology for Process Control. AFS Transactions. No. 113, 455-460.
• [8] Gruzleski, J.E. & Closset, B.M. (1990). The treatment of liquid aluminum-silicon alloys. American Foundryman’s Society, Inc. Des Plaines. Illinois, USA.
• [9] Tenekedjiev, N., Mulazimoglu, H., Closset, B. & Gruzleski, J. (1995). Microstructures and Thermal Analysis of Strontium-Treated Aluminum-Silicon Alloys. American Foundryman’s Society, Inc. Des Plaines. Illinois, USA, 40-41.
• [10] Pabel, T., Bozorgi, S., Kneissl, C., Haberl, K. & Schumacher, P. (2010). Einfluss von Kupfer und Magnesiumgehalt auf die Warmrissneigung bei AlSi7MgCu Legierungen. Giesserei Praxis. 12, 388-394.
• [11] Elizondo, G.H.G. (2016). Effect of Ni, Mn, Zr and Sc additions on the performance of AlSiCuMg alloys. Doctoral dissertation University of Chicoutimi, Quebec, Canada, April 2016.
• [12] Zhang, L., Gao, J., Nina, L., Damoah, W. & Robertson, D.G. (2015). Removal of iron from aluminum: A review. Mineral Processing & Extractive Metall. Rev. 33, 99-157.
• [13] Mondolfo, L.C. (1943). Metallography of aluminum alloys. John Wiley & Sons, New York. pp: 30-31.
• [14] Farkoosh, A.R., Chen, X-G. & Pekguleryuz, M. (2014). Al-Si-Cu-Mg-Mo alloy strengthened by thermally stable coherent dispersoids: creep resistance and mechanisms at 300-350 oC. Materials Science and Engineering A.
• [15] Ifanyi, O.B., Nkem, N.E. & Amaechi, A.F. (2016). Effect of Chromium and Molybdenum on the structure and mechanical properties of Al-Si alloys obtained by metal-mold casting. Journal of Scientific and Engineering Research. 3(3), 383-389.
• [16] Farkoosh, A.R., Chen, X-G. & Pekguleryuz, M. (2015). Interaction between molybdenum and manganese to form effective dispersoids in an Al-Si-Cu-Mg alloy and its influence on creep resistance. Materials Science and Engineering A. 627, 127-138.

Uwagi

PL

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2018).