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Effect of Gadolinium on the Microstructure of Magnesium Alloy AZ91

Treść / Zawartość
Identyfikatory
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
The paper presents the results of research related to the possibility of inoculation of the AZ91 magnesium alloy casted into ceramic moulds by gadolinium. Effects of gadolinium content (0.1–0.6 wt%) on microstructure of the AZ91 alloy under as-cast state were investigated. The influence of the inoculator on the formation of the microstructure investigated by means of the thermal and derivative analysis by analysing the thermal effects arising during the alloy crystallization resulting from the phases formed. The degree of fragmentation of the microstructure of the tested alloys was assessed by means of the light microscopy studies and an image analysis with statistical analysis was performed. Conducted analyses have aimed at examining on the effect of inoculation of the gadolinium on the differences between the grain diameters and average size of each type of grain by way of measuring their perimeters of all phases, preliminary αMg and eutectics αMg+γ(Mg17Al12) in the prepared examined material.
Rocznik
Strony
31--36
Opis fizyczny
Bibliogr. 21 poz., rys., tab., wykr.
Twórcy
  • Lodz University of Technology, Department of Materials Engineering and Production Systems, Łódź, Poland
autor
  • Lodz University of Technology, Department of Materials Engineering and Production Systems, Łódź, Poland
autor
  • Lodz University of Technology, Department of Materials Engineering and Production Systems, Łódź, Poland
autor
  • Lodz University of Technology, Department of Materials Engineering and Production Systems, Łódź, Poland
Bibliografia
  • [1] Wang, Y.N. & Huang, J.C. (2007). The role of twinning and untwining in yielding behavior in hot-extruded Mg-Al-Zn. Alloy Acta Materialia. 55(3), 897-905. DOI: 10.1016/ j.actamat.2006.09.010.
  • [2] Yu, Zhang et. al (2017). Effects of samarium addition on as cast microstructure, grain fragmentation and mechanical properties of Mg-6Zn-0.4Zr magnesium alloy. Journal of Rare Earths. 167(1), 31-33. DOI:10.1016/S1002- 0721(17)60939-6.
  • [3] Cao, F.Y, Song, G.L. & Atrens, A. (2016). Corrosion and passivation of magnesium alloys. Corrosion Science, 111(10), 835-845. DOI: 10.1016/j.corsci.2016.05.041.
  • [4] Mao, X., Yi, Y., Huang, S. & He, H. (2019). Bulging limit of AZ31B magnesium alloy tubes in hydroforming with internal and external pressure. The International Journal of Advanced Manufacturing Technology. 101, 2509-2517. DOI: https://doi.org/10.1007/s00170-018-3076-5.
  • [5] Władysiak, R. & Kozuń, A. (2015). Structure of AlSi20 alloy in heat treated die casting. Archives of Foundry Engineering.15(1), 113-118. DOI: 10.1515/afe-2015-0021.
  • [6] Rapiejko, C., Pisarek, B. & Pacyniak, T. (2017). Effect of intensive cooling of alloy AZ91 with a chromium addition on the microstructure and mechanical properties of the casting. Archives of Metallurgy and Materials. 62(4), 2199- 2204. DOI: 10.1515/amm-2017-0324.
  • [7] Zhao, H.L., Guan, S.K. & Zheng, F.Y. (2007). Effects of Sr and B addition on microstructure and mechanical properties of AZ91 magnesium alloy. Journal of Materials Research. 22, 2423-2428. DOI: 10.1557/jmr.2007.0331.
  • [8] Bonnah, R.C., Fu, Y. & Hao, H. (2019). Microstructure and mechanical properties ofAZ91 magnesium alloy with minor additions of Sm, Si and Ca elements. China Foundry. 16(5), 319-325. DOI: 10.1007/s41230-019-9067-9.
  • [9] Jafari, H. & Amiryavari, P. (2016). The effects of zirconium and beryllium on microstructure evolution, mechanical properties and corrosion behaviour of as-cast AZ63 alloy. Materials Science & Engineering A. 654, 161-168 DOI: 0.1016/j.msea.2015.12.034.
  • [10] Boby, A., Ravikumar, K.K., Pillai, U.T.S. & Pai, B.C. (2013). Effect of antimony and yttrium addition on the high temperature properties of AZ91 magnesium alloy. Procedia Engineering 55. 355(5), 98-102. DOI: 10.1016/j.proeng. 2013.03.226.
  • [11] Huang, W., Yang, X., Mukai, T. & Sakai, T. (2019). Effect of yttrium addition on the hot deformation behaviors and microstructure development of magnesium alloy. Journal of Alloys and Compounds. 786, 118-125. DOI: 10.1016/ j.jallcom.2019.01.269.
  • [12] Pourbahari, B., Mirzadeh, H., Emamy, M. & Roumina, R. (2018). Enhanced ductility of afine-grained Mg-Gd-Al-Zn magnesium alloy by hot extrusion. Advanced Engineering Materials. 20, 1701171. DOI: 10.1002/adem.201701171.
  • [13] Tardif, S., Tremblay, R. & Dubé, D. (2010). Influence of cerium on the microstructure and mechanical properties of ZA104 and ZA104 + 0.3Ca magnesium alloys. Material Science and Engineering A. 527, 7519-7529. DOI: 10.1016/j.msea.2010.08.082.
  • [14] Wang, X.J. et al. (2018). What is going on in magnesium alloys? Journal of Materials Science & Technology. 34(2), 245-247. DOI: 10.1016/j.jmst.2017.07.019.
  • [15] Nan, J. et. al (2016) Effect of neodymium, gadolinium addition on microstructure and mechanical properties of AZ80 magnesium alloy. Journal of Rare Earths. 34(6), 632- 637. DOI: 10.1016/S1002-0721(16)60072-8.
  • [16] Miao, Y., Yaohui, L., Jiaan, L. & Yulai, S. (2014). Corrosion and mechanical properties of AM50 magnesium alloy after being modified by 1 wt.% rare earth element gadolinium. Journal of Rare Earth. 723, 558-563. DOI: 10.1016/S1002- 0721(14)60108-3.
  • [17] Mingbo, Y., Caiyuan, Q., Fusheng, P. & Tao, Z. (2011). Comparison of effects of cerium, yttrium and gadolinium additions on as-cast microstructure and mechanical properties of Mg-3Sn-1Mn magnesium alloy. Journal of Rare Earths. 29(6), 550-557. DOI: 10.1016/S1002- 0721(10)60496-6.
  • [18] Sumida, M., Jung, S. & Okane, T. (2009). Microstructure, solute partitioning and material properties of gadolinium doped magnesium alloy AZ91D. Journal of Alloys and Compounds. 475. 903-910. DOI: 10.1016/j.jallcom. 2008.08.067/
  • [19] Pietrowski, S. & Rapiejko, C. (2011). Temperature and microstructure characteristics of silumin casting AlSi9 made with investment casting method. Archives of Foundry Engineering. 11(3), 177-186.
  • [20] PN-EN 1753:2001. Magnesium and magnesium alloys. Magnesium alloy ingots and castings.
  • [21] Rapiejko, C., Pisarek, B, Czekaj, E. & Pacyniak, T. (2014). Analysis of AM60 and AZ91 Alloy Crystallisation in ceramic moulds by thermal derivative analisys (TDA). Archive of Metallurgy and Materials. 59(4) DOI: 10.2478/amm-2014-0246.
Uwagi
Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2021).
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-8e3bd42d-2335-4706-9e36-8d1d1de4ea38
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