Browse > Article
http://dx.doi.org/10.7777/jkfs.2017.37.4.101

The Effect of Pd addition on Mechanical Properties at High Temperature of Mg-4Al-2Sn Alloy  

Yim, Si-On (1st Naval Sea Systems Team, Defense Agency for Technology and Quality)
Kang, Byoung-Soo (1st Naval Sea Systems Team, Defense Agency for Technology and Quality)
Cho, Dae-Hyun (Department of Materials Science and Engineering, Pusan National University)
Park, Ik-Min (Department of Materials Science and Engineering, Pusan National University)
Publication Information
Journal of Korea Foundry Society / v.37, no.4, 2017 , pp. 101-107 More about this Journal
Abstract
This study investigated the effect of Pd on the microstructure, tensile and creep properties of Mg-4Al-2Sn (AT42) alloy at a high temperature for transportation-related industrial applications. AT42-xPd (x = 0, 1 and 2 wt. %) alloys were prepared using a permanent mould casting method. The microstructures of the as-cast alloys were characterized by the presence of the intermetallic phases $Mg_{17}Al_{12}$, $Mg_2Sn$ and $Al_4Pd$. The addition of Pd was found to improve the tensile properties of AT42 at room and at elevated temperatures, and to increase the creep resistance at elevated temperatures. A small amount of Pd could markedly improve the tensile properties of AT42 by means of grain-refinement and the dispersion of secondary phase strengthening. Moreover, the thermally stable phase $Al_4Pd$ effectively improves the creep resistance of AT42 due to the strengthened grain boundaries and the suppressed formation of $Mg_{17}Al_{12}$.
Keywords
Magnesium alloys; Casting; Creep test; Tensile test; Palladium;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Kainer KU and Sillekens WH, Magnesium Technology 2011, The Minerals, Metals & Materials Society (TMS), San Diego (2011) 5.
2 Kulekei MK, Int. J. Adv. Manuf. Technol., "Magnesium and its alloys applications in automotive industry", 39 (2008) 851-865.   DOI
3 Tali MZ, Mazinani M, Ferdowsi MRG, Ebrahimi GR and Marvi-Mashhadi M, Met. Mater. Int., "Strain-dependent constitutive modelling of AZ80 magnesium alloy containing 0.5 wt.% rare earth elements and evaluation of its validation using finite element method", 20 (2014) 1073.   DOI
4 Kim BH, Lee SW, Park YH and Park IM, J. Alloys Compd., "The microstructure, tensile properties, and creep behavior of AZ91, AS52 and TAS652 alloy", 493 (2010) 502-506.   DOI
5 Pekguleryuz M and Celikin M, Int. Mater. Reviews, "Creep resistance in magnesium alloys", 55 (2010) 197-217.   DOI
6 Dargusch MS, Zhu SM, Nie JF and Dunlop GL, Scr. Mater., "Microstructural analysis of the improved creep resistance of a die-cast magnesium aluminium-rare earth alloy by strontium additions", 60 (2009) 116-119.   DOI
7 Ben-Hamu G, Eliezer D and Shin KS, Mater. Sci. Eng. A, "The role of Si and Ca on new wrought Mg-Zn-Mn based alloy", 447 (2007) 35-43.   DOI
8 Zhang J, Yu P, Liu K, Fang D, Tang D and Meng J, Mater. Des., "Effect of substituting cerium-rich mischmetal with lanthanum on microstructure and mechanical properties of die-cast Mg-Al-RE alloys", 30 (2009) 2372-2378.   DOI
9 Meshinchi AK, Tari A and Khomamizadeh F, Mater. Sci. Eng. A, "The effect of different content of Al, RE and Si element on the microstructure, mechanical and creep properties of Mg-Al alloys", 523 (2009) 1-6.   DOI
10 Hort N, Huang Y and Kainer KU, Adv. Eng. Mater., "Intermetallics in Magnesium Alloys", 8 (2006) 235-240.   DOI
11 Kim JK, Oh SH, Kim KC, Kim WT and Kim DH, Met. Mater. Int., "Effect of aging time and temperature on the aging behavior in Sn containing AZ91 alloy", 23 (2017) 1-5.   DOI
12 Wang X, Du W, Liu K, Wang Z and Li S, J. Alloys Compd., "Microstructure, tensile properties and creep behaviors of ascast Mg-2Al-1Zn-xGd (x = 1, 2, 3, and 4 wt.%) alloys", 522 (2012) 78-84.   DOI
13 L'Esperance G, Plamondon P, Kunst M and Fischersworring-Bunk A, Intermetallics, "Characterization of intermetallics in Mg-Al-Sr AJ62 alloys", 18 (2010) 1-7.   DOI
14 Mahmudi R and Moeendarbari S, Mater. Sci. Eng. A, "Effects of Sn additions on the microstructure and impression creep behavior of AZ91 magnesium alloy", 566 (2013) 30-39.   DOI
15 Zhu SM, Gibson MA, Nie JF, Easton MA and Abbott TB, Scr. Mater., "Microstructural analysis of the creep resistance of die-cast Mg-4Al-2RE alloy", 58 (2008) 477-480.   DOI
16 Kim BH, Park KC, Park YH and Park IM, Mater. Lett., "Effect of Pd on microstructures and tensile properties of ascast Mg-6Al-1Zn alloys", 65 (2011) 122-125.   DOI
17 Luo AA and Sachdev AK, Magnesium Technology 2009, The Minerals, Metals & Materials Society (TMS), Warrendale (2009) 437-443.
18 Avraham S, Katsman A and Bamberger M, Magnesium Technology 2009, The Minerals, Metals & Materials Society (TMS), Warrendale (2009) 471-475.
19 Kim BH, Jeon JJ, Park KC, Park BG, Park YH and Park IM, Int. J. Cast. Metals Res., "Microstructural characterisation and mechanical properties of Mg-xSn-5Al-1Zn alloys", 21 (2008) 186-192.   DOI
20 Boer FR, Boom R, Mattens WCM, Miedema AR and Niessen AK, Cohesion in Metals Transition Metal Alloys, Elsevier Science, Amsterdam (1988).
21 Yurechko M, Fattah A, Velikanova T and Grushko B, J. Alloys Compd., "A contribution to the Al-Pd phase diagram", 329 (2001) 173-181.   DOI
22 Moreno I, Nandy T, Jones J, Allison J and Pollock T, Scr. Mater., "Microstructural stability and creep of rare-earth containing magnesium alloys", 48 (2003) 1029-1034.   DOI
23 Han QY, Kad BK and Viswanathan S, Philos. Magn., "Design perspectives for creep-resistant magnesium die-casting alloys", 84 (2004) 3843-3860.   DOI
24 Pekguleryuz M and Kaya A, Adv. Eng. Mater., "Creep Resistant Magnesium Alloys for Powertrain Applications", 5 (2003) 866-878.   DOI
25 Gibson M, Bettles C, Murray M and Dunlop G, Magnesium Technology 2006, The Minerals, Metals & Materials Society (TMS), Texas (2006) 327-331.
26 Srinivasan A, Swaminathan J, Pillai UTS, Guguloth K and Pai BC, Mater. Sci. Eng. A, "Effect of combined addition of Si and Sb on the microstructure and creep properties of AZ91 magnesium alloy", 485 (2008) 86-91.   DOI