Impact Strength of AE-type Alloys High Pressure Die Castings

• Autorzy: Braszczyńska-Malik K. , Malik M. A.

Identyfikatory

DOI

10.24425/afe.2020.133321

• Języki publikacji: EN

Abstrakty

EN

The results of the Charpy impact test of AE-type magnesium alloys produced by the high pressure die casting method are presented. Three alloys with different weight fractions of rare earth elements (RE; e.g. 1, 3 and 5 wt%) and the same mass fraction of aluminium (5 wt%) were prepared. The casts were fabricated using a typical cold chamber high pressure die casting machine with a 3.8 MN locking force. Microstructural analyses were performed by means of a scanning electron microscope (SEM). The impact strength (IS) was determined using a Charpy V hammer with an impact energy equal to 150 J. The microstructure of the experimental alloys consisted of an [alpha]-Mg solid solution and Al₁₁RE₃, Al₁₀Ce₂Mn₇ and Al₂RE intermetallic compounds. The obtained results show the significant influence of the rare earth elements to aluminium ratio on the impact strength of the investigated materials. Lower the RE/Al ratio in the chemical composition of the alloy results in a higher impact strength of the material.

Słowa kluczowe

EN

AE-type alloy; magnesium alloy; aluminum; rare earth elements; high pressure die casting; impact strength

PL

stop typu AE; stop magnezu; aluminium; pierwiastki ziem rzadkich; odlewanie ciśnieniowe; udarność

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2020
• Tom: Vol. 20, iss. 3
• Strony: 5--8
• Opis fizyczny: Bibliogr. 14 poz., rys., tab.

Twórcy

autor

Braszczyńska-Malik K.

• Czestochowa University of Technology, Faculty of Production Engineering and Materials Technology, Czestochowa, Poland

autor

Malik M. A.

• Czestochowa University of Technology, Faculty of Production Engineering and Materials Technology, Czestochowa, Poland

Bibliografia

• [1] El-Mahallawy, N.A., Taha, M.A., Pokora, E. & Klein, F. (1998). On the influence of the process variables on the thermal conditions and properties of high pressure die-cast magnesium alloys. Journal of Materials Process Technology. 73, 125-138.
• [2] Gutman, E.M., Unigovski, Y., Levkovich, M., Koren, Z., Aghion, E. & Dangur, M. (1997). Influence of technological parameters of permanent mold casting and die casting on creep and strength of Mg alloy AZ91D. Materials Science and Engineering, A234-236, 880-883.
• [3] Lee, S.G., Patel, G.R., Gokhale, A.M., Sareeranganathan, A. & Horstemeyer, M.F. (2006). Quantitative fractographic analysis of variability in the tensile ductility of high-pressure die-cast AE44 Mg-alloy. Materials Science and Engineering. A 427, 255-262.
• [4] Guangyin, Y., Yangshan, S. & Wenjiang, D. (2001). Effects of bismuth and antimony additions on the microstructure and mechanical properties of AZ91 magnesium alloy. Materials Science and Engineering A, 308, 38-44.
• [5] Asl, K.M., Tari, A. & Khomamizadeh, F. (2009). The effect of different content of Al, RE and Si element on the microstructure, mechanical and creep properties of Mg-Al alloys. Materials Science and Engineering. A, 523, 1-6.
• [6] Zhang, J., Wang, J., Qiu, X., Zhang, D., Tian, Z., Niu, X., Tang, D. & Meng, J. (2008). Effect of Nd on the microstructure, mechanical properties and corrosion behavior of die-cast Mg-4Al-based alloy. Journal of Alloys and Compounds. 464, 556-564.
• [7] Wang, J., Liao, R., Wang, L., Wu, Y., Cao, Z. & Wang, L. (2009). Investigations of the properties of Mg-5Al-0.3Mn-xCe (x=0-3, wt.%) alloys. Journal of Alloys and Compounds. 477, 341-345.
• [8] Zhang, J., Leng, Z., Zhang, M., Meng, J. & Wu, R. (2011). Effect of Ce on the microstructure, mechanical properties and corrosion behavior of high-pressure die-cast Mg-4Al-based alloy. Journal of Alloys and Compounds. 509, 1069-1078.
• [9] Lu, Y., Wang, Q., Zeng, X., Ding, W., Zhai, Ch. & Zhu, Y. (2000). Effects of rare earths on the microstructure, properties and fracture behaviour of Mg-Al alloys. Materials Science and Engineering. A278, 66-76.
• [10] Wang, Y., Guan, S., Zeng & X., Ding, (2006). Effect 0f RE on the microstructure and mechanical properties of Mg-8Zn-4Al magnesium alloy. Materials Science and Engineering. A416, 109-118.
• [11] Zhang, J., Liu, S. Leng, Z., Zhang, M., Meng, J. & Wu, R. (2011). Microstructure and mechanical properties of heat resistant HPDC Mg-4Al-based alloys containing cheap misch metal. Materials Science and Engineering. A528, 2670-2677.
• [12] Żydek, A., Kamieniak, J. & Braszczyńska-Malik K.N. (2010). The effect of rare earth elements on the microstructure of as-cast AM50 alloy. Archives of Foundry Engineering. 10(spec.1), 147-150.
• [13] Braszczyńska-Malik, K.N. & Grzybowska, A. (2016). Influence of phase composition on microstructure and properties of Mg-5Al-0.4Mn-xRE (x=0,3 and 5 wt.%) alloys. Materials Characterization. 115, 14-22.
• [14] Braszczyńska-Malik, K.N. (2017). Effect of high-pressure die casting on structure and properties of Mg-5Al-0.4Mn-xRE (x=1, 3 and 5 wt.%) experimental alloys. Journal of Alloys and Compounds. 694, 841-84.

Uwagi

PL

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020)