The effect of rare earth elements on the microstructure of as-cast AM50 alloy

• Autorzy: Żydek A. , Kamieniak J. , Braszczyńska-Malik K. N.
• Języki publikacji: EN

Abstrakty

EN

As-cast Mg-5Al-0.4Mn-xRE (x = 0, 1, 2 wt.%) magnesium alloys were prepared successfully and influence of rare earth (RE) elements on the microstructure has been investigated by light microscopy and X-ray diffraction (XRD). The results revealed that the as-cast Mg-5Al-0.4Mn alloy consist of α - Mg matrix and eutectic α + γ (where γ is Mg₁₇Al₁₂). With the addition of rare earth elements Al₁₁RE₃ precipitates were formed. The amount of the Al₁₁RE₃ precipitates increased with increasing addition of RE, but the amount of γ - Mg₁₇Al₁₂ decreased. Additionally, in alloys with rare earth elements no aluminium-manganese precipitates were observed, instead of that ternary intermetallic compound Al₁₀RE₂Mn₇ was formed.

Słowa kluczowe

EN

Mg-Al-Mn alloy; rare earth elements; alloy microstructure

PL

stop Mg-Al-Mn; pierwiaski ziem rzadkich; mikrostruktura stopu

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2010
• Tom: Vol. 10, iss. 1 spec.
• Strony: 147--150
• Opis fizyczny: Bibliogr. 14 poz., rys., tab., wykr.

Twórcy

autor

Żydek A.

• Institute of Materials Engineering, Częstochowa University of Technology, al. Armii Krajowej 19, 42-200 Częstochowa, Poland

autor

Kamieniak J.

• Institute of Materials Engineering, Częstochowa University of Technology, al. Armii Krajowej 19, 42-200 Częstochowa, Poland

autor

Braszczyńska-Malik K. N.

• Institute of Materials Engineering, Częstochowa University of Technology, al. Armii Krajowej 19, 42-200 Częstochowa, Poland

Bibliografia

• [1] Watarai H.: Trend of research and development for magnesium alloys - reducing the weight of structural materials in motor vehicles, Science & Technology Trends – Quarterly Review, 2006, Vol. 18, 84-97.
• [2] Easton M., Beer A., Barnett M., Davies C., Dunlop G., Durandet Y., Blacket S., Hilditch T., Beggs P.: Magnesium alloy applications in automotive structures, Journal of the Minerals, Metals and Materials Society, 2008, Vol. 60, 57-62.
• [3] Kulekci M.K.: Magnesium and its alloys applications in automotive industry, International Journal of Advanced Manufacturing Technology, 2008, Vol. 39, 851-865.
• [4] Dahle A.K., Lee Y.C., Nave M.D., Schaffer P.L., StJohn D.H.: Development of the as-cast microstructure in magnesium-aluminium alloys, Journal of Light Metals, 2001, Vol. 1, 61-72.
• [5] Ma Y., Zhang J., Yang M.: Research on microstructure and alloy phases of AM50 magnesium alloy, Journal of Alloys and Compounds, 2009, Vol. 470, 515-521.
• [6] Zheng X., Wang L., Wang J., Wu Y., Ning Z., Sun J., Wang L.: Microstructure and mechanical properties of Mg-4Al-4Nd-0.5Zn-0.3Mn alloy, Materials Science and Engineering A, 2009, Vol. 515, 98-101.
• [7] Asl K.M., Tari A., Khomamizadeh F.: 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, 2009, Vol. 523, 1-6.
• [8] Zhang J., Yu P., Fang D., Tang D., Meng J.: Effect of substituting cerium-rich mischmetal with lanthanum on microstructure and mechanical properties of die-cast Mg-Al-RE alloys, Materials and Design, 2009, Vol. 30, 2372-2378.
• [9] Zhang J., Wang J., Qiu X., Zhang D., Tian Z., Niu X., Tang D., Meng J.: Effect of Nd on the microstructure, mechanical properties and corrosion behavior of die-cast Mg-4Al-based alloy, Journal of Alloys and Compounds, 2008, Vol. 464, 556-564.
• [10] Huang Y.D., Dieringa H., Hort N., Maier P., Kainer K.U., Liu Y.L.: Evolution of microstructure and hardness of AE42 alloy after heat treatments, Journal of Alloys and Compounds, 2008, Vol. 463, 238-245.
• [11] Braszczyńska-Malik K.N., Żydek A., Microstructure of Mg-Al alloy with rare earth addition, Archives of Foundry Engineering, 8, 1, 2008, 23-26.
• [12] Żydek A., Polis-Olejniczak A, Malik M.A., Kamieniak J., Braszczyńska-Malik K.N., Analysis of heavy alloying elements segregation in gravity cast experimental Mg-Al-Zn-RE alloy , Archives of Foundry Engineering, 10, 1, 2010, 217-220.
• [13] Wang J., Liao R., Wang L., Wu Y., Cao Z., Wang L.: Investigations of the properties of Mg-5Al-0.3Mn-xCe (x = 0-3, wt.%) alloys, Journal of Alloys and Compounds, 2009, Vol. 477, 341-345.
• [14] Wang J., Yang J., Wu Y., Zhang H., Wang L.: Microstructures and mechanical properties of as-cast Mg-5Al-0.4Mn-xNd (x = 0, 1, 2, and 4) alloys, Materials Science and Engineering A, 2008, Vol. 427, 332-337.