Research article Topical Sections

In-situ reactions in hybrid aluminum alloy composites during incorporating silica sand in aluminum alloy melts

  • Received: 24 May 2016 Accepted: 18 July 2016 Published: 19 July 2016
  • In order to gain a better understanding of the reactions and strengthening behavior in cast aluminum alloy/silica composites synthesized by stir mixing, experiments were conducted to incorporate low cost foundry silica sand into aluminum composites with the use of Mg as a wetting agent. SEM and XRD results show the conversion of SiO2 to MgAl2O4 and some Al2O3 with an accompanying increase in matrix Si content. A three-stage reaction mechanism proposed to account for these changes indicates that properties can be controlled by controlling the base Alloy/SiO2/Mg chemistry and reaction times. Experimental data on changes of composite density with increasing reaction time and SiO2 content support the three-stage reaction model. The change in mechanical properties with composition and time is also described.

    Citation: Afsaneh Dorri Moghadam, J.B. Ferguson, Benjamin F. Schultz, Pradeep K. Rohatgi. In-situ reactions in hybrid aluminum alloy composites during incorporating silica sand in aluminum alloy melts[J]. AIMS Materials Science, 2016, 3(3): 954-964. doi: 10.3934/matersci.2016.3.954

    Related Papers:

  • In order to gain a better understanding of the reactions and strengthening behavior in cast aluminum alloy/silica composites synthesized by stir mixing, experiments were conducted to incorporate low cost foundry silica sand into aluminum composites with the use of Mg as a wetting agent. SEM and XRD results show the conversion of SiO2 to MgAl2O4 and some Al2O3 with an accompanying increase in matrix Si content. A three-stage reaction mechanism proposed to account for these changes indicates that properties can be controlled by controlling the base Alloy/SiO2/Mg chemistry and reaction times. Experimental data on changes of composite density with increasing reaction time and SiO2 content support the three-stage reaction model. The change in mechanical properties with composition and time is also described.


    加载中
    [1] Moghadam AD, Schultz BF, Ferguson JB, et al. (2014) Functional metal matrix composites: self-lubricating, self-healing, and nanocomposites-an outlook. JOM 66: 872–881.
    [2] Sato A, Mehrabian R (1976) Aluminum matrix composites: fabrication and properties. Metall Trans B 7: 443–451.
    [3] Amirkhanlou S, Niroumand B (2010) Synthesis and characterization of 356-SiCp composites by stir casting and compocasting methods. Trans Nonferrous Met Soc China 20: s788–s793. doi: 10.1016/S1003-6326(10)60582-1
    [4] Das S, Das K (2007) Abrasive wear of zircon sand and alumina reinforced Al–4.5 wt% Cu alloy matrix composites–A comparative study. Compos Sci Technol 67: 746–751.
    [5] Rohatgi PK, Schultz BF, Daoud A, et al. (2010) Tribological performance of A206 aluminum alloy containing silica sand particles. Tribol Int 43: 455–466.
    [6] Dorri Moghadam A, Ferguson JB, Schultz BF, Lopez HF, Rohatgi PK (2016) Direct synthesis of nano structured in-situ hybrid aluminum matrix nanocomposite.Ind Eng Chem Res 55: 6345–6353.
    [7] Zuhailawati H, Samayamutthirian P, Haizu CM (2007) Fabrication of low cost aluminium matrix composite reinforced with silica sand. J Phys Sci 18: 47–55.
    [8] Yoshikawa N, Kikuchi A, Taniguchi S (2002) Anomalous temperature dependence of the growth rate of the reaction layer between silica and molten aluminum. J Am Ceram Soc 85: 1827–1834.
    [9] Hemanth J (2009) Quartz (SiO 2p) reinforced chilled metal matrix composite (CMMC) for automotive applications. Mater Des 30: 323–329. doi: 10.1016/j.matdes.2008.04.064
    [10] Sulaiman S, Sayuti M, Samin R (2008) Mechanical properties of the as-cast quartz particulate reinforced LM6 alloy matrix composites. J Mater Process Technol 201: 731–735. doi: 10.1016/j.jmatprotec.2007.11.221
    [11] Rohatgi PK, Pai BC, Panda SC (1979) Preparation of Cast Aluminum-Silica Particulate Composites. J Mater Sci 14: 2277–2283.
    [12] Rohatgi PK, Asthana R, Das S (1986) Solidification, structures, and properties of cast metal-ceramic particle composites. Int Mater Rev 31: 115–139. doi: 10.1179/imr.1986.31.1.115
    [13] Gupta AK, Dan TK, Rohatgi PK (1986) Aluminum Alloy-silica Sand Composites: Preparation and Properties. J Mater Sci 21: 3413–3419. doi: 10.1007/BF02402980
    [14] Moghadam AD, Omrani E, Menezes P L, Rohatgi PK (2016). Effect of in-situ processing parameters on the mechanical and tribological properties of self-lubricating hybrid aluminum nanocomposites.Tribology Letters62: 1-10.
    [15] Pai BC, Ramani G, Pillai RM, et al. (1995) Role of Magnesium in Cast Aluminum Alloy Matrix Composites. J Mater Sci 30: 1903–1911.
    [16] McLeod AD, Gabryel CM (1992) Kinetics of the Growth of Spinel. MgAl2O4, on Alumina Particulate in Aluminum Alloys Containing Magnesium. Metall Trans A 23A: 1279–1283.
    [17] Mogilevsky R, Bryan SR, Wolbach WS, et al. (1995) Reactions at the Matrix/Reinforcement Interface in Aluminum Alloy Matrix Composites. Mater Sci Eng A 191: 209–222. doi: 10.1016/0921-5093(94)09635-A
    [18] Hanabe MR, Aswath PB (1996) Al2O3/Al particle-reinforced aluminum matrix composite by displacement reaction. J Mater Res 11: 1562–1569. doi: 10.1557/JMR.1996.0195
  • Reader Comments
  • © 2016 the Author(s), licensee AIMS Press. This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0)
通讯作者: 陈斌, bchen63@163.com
  • 1. 

    沈阳化工大学材料科学与工程学院 沈阳 110142

  1. 本站搜索
  2. 百度学术搜索
  3. 万方数据库搜索
  4. CNKI搜索

Metrics

Article views(5244) PDF downloads(1265) Cited by(6)

Article outline

Figures and Tables

Figures(7)  /  Tables(2)

/

DownLoad:  Full-Size Img  PowerPoint
Return
Return

Catalog