Hostname: page-component-586b7cd67f-t8hqh Total loading time: 0 Render date: 2024-11-22T19:11:56.008Z Has data issue: false hasContentIssue false
  • English
  • Français

Precipitation behavior of dispersoids and elevated-temperature properties in Al–Si–Mg foundry alloy with Mo addition

Published online by Cambridge University Press:  16 July 2019

S. Chen ,
K. Liu  and
X-G. Chen
S. Chen
Affiliation:
Department of Applied Sciences, University of Québec at Chicoutimi, Chicoutimi, QC G7H 2B1, Canada
K. Liu*
Affiliation:
Department of Applied Sciences, University of Québec at Chicoutimi, Chicoutimi, QC G7H 2B1, Canada
X-G. Chen
Affiliation:
Department of Applied Sciences, University of Québec at Chicoutimi, Chicoutimi, QC G7H 2B1, Canada
*
a)Address all correspondence to this author. [email protected]
Get access

Abstract

In the present work, Mo was added to an Al–Si–Mg foundry alloy to study its influence on the evolution of dispersoids during various heat treatments. The microhardness and the elevated-temperature tensile properties and creep resistance were measured to evaluate the contribution of dispersoids. Results showed that the addition of Mo greatly promoted the formation of α-dispersoids. During solution treatment, the formation of α-dispersoids started after 8 h at 500 °C. At high temperature (540 °C), the coarsening of dispersoids with increasing time became predominant. The optimum condition of dispersoids can be reached by 520 °C/12 h or 500 °C/4 h + 540 °C/2 h, leading to the highest differences in microhardness between the Mo-containing alloy and base alloy. The tensile strengths were improved at both room temperature and elevated temperatures, while the elongation at elevated temperature was greatly increased. The creep resistance at elevated temperature is further enhanced due to the Mo addition.

Keywords

Al–Si foundry alloyheat treatmentdispersoidselevated-temperature propertiescreep resistance
Type
Article
Information
Journal of Materials Research , Volume 34 , Issue 18 , 30 September 2019 , pp. 3071 - 3081
Copyright
Copyright © Materials Research Society 2019 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Liu, G. and Müller, D.B.: Addressing sustainability in the aluminum industry: A critical review of life cycle assessments. J. Cleaner Prod. 35, 108–117 (2012).10.1016/j.jclepro.2012.05.030CrossRefGoogle Scholar
Norgate, T., Jahanshahi, S., and Rankin, W.: Assessing the environmental impact of metal production processes. J. Cleaner Prod. 15, 838–848 (2007).10.1016/j.jclepro.2006.06.018CrossRefGoogle Scholar
Team, T.: Trends in Steel Usage in the Automotive Industry (Forbes, 2015). Available at: https://www.forbes.com/sites/greatspeculations/2015/05/20/trends-in-steel-usage-in-the-automotive-industry/#4cd522114762.Google Scholar
Cole, G. and Sherman, A.: Light weight materials for automotive applications. Mater. Charact. 35, 3–9 (1995).10.1016/1044-5803(95)00063-1CrossRefGoogle Scholar
Ye, H.: An overview of the development of Al–Si-alloy based material for engine applications. J. Mater. Eng. Perform. 12, 288–297 (2003).CrossRefGoogle Scholar
Garat, M. and Laslaz, G.: Improved aluminum alloys for common rail diesel cylinder heads. AFS Trans. 115, 89–96 (2007).Google Scholar
Feikus, F.: Optimization of Al–Si cast alloys for cylinder head applications. AFS Trans. 106, 225–231 (1998).Google Scholar
Murayama, M. and Hono, K.: Pre-precipitate clusters and precipitation processes in Al–Mg–Si alloys. Acta Mater. 47, 1537–1548 (1999).10.1016/S1359-6454(99)00033-6CrossRefGoogle Scholar
Li, Y., Brusethaug, S., and Olsen, A.: Influence of Cu on the mechanical properties and precipitation behavior of AlSi7Mg0. 5 alloy during aging treatment. Scr. Mater. 54, 99–103 (2006).CrossRefGoogle Scholar
Sha, G., Möller, H., Stumpf, W.E., Xia, J., Govender, G., and Ringer, S.: Solute nanostructures and their strengthening effects in Al–7Si–0.6 Mg alloy F357. Acta Mater. 60, 692–701 (2012).10.1016/j.actamat.2011.10.029CrossRefGoogle Scholar
Matsuda, K., Taniguchi, S., Kido, K., Uetani, Y., and Ikeno, S.: Effects of Cu and transition metals on the precipitation behaviors of metastable phases at 523 K in Al–Mg–Si alloys. Mater. Trans. 43, 2789–2795 (2002).10.2320/matertrans.43.2789CrossRefGoogle Scholar
Wang, S., Matsuda, K., Kawabata, T., Yamazaki, T., and Ikeno, S.: Variation of age-hardening behavior of TM-addition Al–Mg–Si alloys. J. Alloys Compd. 509, 9876–9883 (2011).10.1016/j.jallcom.2011.07.067CrossRefGoogle Scholar
Liu, K. and Chen, X-G.: Development of Al–Mn–Mg 3004 alloy for applications at elevated temperature via dispersoid strengthening. Mater. Des. 84, 340–350 (2015).CrossRefGoogle Scholar
Liu, K. and Chen, X-G.: Evolution of intermetallics, dispersoids, and elevated temperature properties at various Fe contents in Al–Mn–Mg 3004 alloys. Metall. Mater. Trans. B 47, 3291–3300 (2016).10.1007/s11663-015-0564-yCrossRefGoogle Scholar
Muggerud, A.M.F., Mørtsell, E.A., Li, Y., and Holmestad, R.: Dispersoid strengthening in AA3xxx alloys with varying Mn and Si content during annealing at low temperatures. Mater. Sci. Eng., A 567, 21–28 (2013).CrossRefGoogle Scholar
Ratke, L. and Voorhees, P.W.: Growth and Coarsening: Ostwald Ripening in Material Processing (Springer, Berlin, London, 2013).Google Scholar
Chen, R., Xu, Q., Jia, Z., and Liu, B.: Precipitation behavior and hardening effects of Si-containing dispersoids in Al–7Si–Mg alloy during solution treatment. Mater. Des. 90, 1059–1068 (2016).CrossRefGoogle Scholar
Li, Y., Muggerud, A., Olsen, A., and Furu, T.: Precipitation of partially coherent α-Al (Mn, Fe) Si dispersoids and their strengthening effect in AA 3003 alloy. Acta Mater. 60, 1004–1014 (2012).10.1016/j.actamat.2011.11.003CrossRefGoogle Scholar
Lodgaard, L. and Ryum, N.: Precipitation of dispersoids containing Mn and/or Cr in Al–Mg–Si alloys. Mater. Sci. Eng., A 283, 144–152 (2000).CrossRefGoogle Scholar
Kim, H.Y., Park, T.Y., Han, S.W., and Lee, H.M.: Effects of Mn on the crystal structure of α-Al (Mn, Fe) Si particles in A356 alloys. J. Cryst. Growth 291, 207–211 (2006).10.1016/j.jcrysgro.2006.02.006CrossRefGoogle Scholar
Li, Y. and Arnberg, L.: Quantitative study on the precipitation behavior of dispersoids in DC-cast AA3003 alloy during heating and homogenization. Acta Mater. 51, 3415–3428 (2003).CrossRefGoogle Scholar
Nam, S.W. and Lee, D.H.: The effect of Mn on the mechanical behavior of Al alloys. Met. Mater. Int. 6, 13 (2000).CrossRefGoogle Scholar
Park, D.S. and Nam, S.W.: Effects of manganese dispersoid on the mechanical properties in Al–Zn–Mg alloys. J. Mater. Sci. 30, 1313–1320 (1995).CrossRefGoogle Scholar
Kim, K. and Nam, S.W.: Effects of Mn-dispersoids on the fatigue mechanism in an Al–Zn–Mg alloy. Mater. Sci. Eng., A 244, 257–262 (1998).CrossRefGoogle Scholar
Lee, D., Park, J., and Nam, S.W.: Enhancement of mechanical properties of Al–Mg–Si alloys by means of manganese dispersoids. Mater. Sci. Technol. 15, 450–455 (1999).CrossRefGoogle Scholar
Farkoosh, A., Chen, X.G., and Pekguleryuz, M.: Dispersoid strengthening of a high temperature Al–Si–Cu–Mg alloy via Mo addition. Mater. Sci. Eng., A 620, 181–189 (2015).CrossRefGoogle Scholar
Farkoosh, A., Chen, X.G., and Pekguleryuz, M.: Interaction between molybdenum and manganese to form effective dispersoids in an Al–Si–Cu–Mg alloy and their influence on creep resistance. Mater. Sci. Eng., A 627, 127–138 (2015).10.1016/j.msea.2014.12.115CrossRefGoogle Scholar
Dinnis, C.M., Taylor, J.A., and Dahle, A.K.: As-cast morphology of iron-intermetallics in Al–Si foundry alloys. Scr. Mater. 53, 955–958 (2005).CrossRefGoogle Scholar
Seifeddine, S., Johansson, S., and Svensson, I.L.: The influence of cooling rate and manganese content on the β-Al5FeSi phase formation and mechanical properties of Al–Si-based alloys. Mater. Sci. Eng., A 490, 385–390 (2008).CrossRefGoogle Scholar
Farkoosh, A. and Pekguleryuz, M.: Enhanced mechanical properties of an Al–Si–Cu–Mg alloy at 300 °C: Effects of Mg and the Q-precipitate phase. Mater. Sci. Eng., A 621, 277–286 (2015).CrossRefGoogle Scholar
Liu, K., Ma, H., and Chen, X-G.: Enhanced elevated-temperature properties via Mo addition in Al–Mn–Mg 3004 alloy. J. Alloys Compd. 694, 354–365 (2017).CrossRefGoogle Scholar
Li, Y. and Arnberg, L.: Evolution of eutectic intermetallic particles in DC-cast AA3003 alloy during heating and homogenization. Mater. Sci. Eng., A 347, 130–135 (2003).CrossRefGoogle Scholar
Knipling, K.E., Dunand, D.C., and Seidman, D.N.: Criteria for developing castable, creep-resistant aluminum-based alloys—A review. Z. Metallkd. 97, 246–265 (2006).CrossRefGoogle Scholar
Kaufman, J.G.: Properties of Aluminum Alloys: Tensile, Creep, and Fatigue Data at High and Low Temperatures (ASM international, Materials Park, Ohio, 1999).Google Scholar
Lee, W-S. and Huang, Y-C.: Mechanical properties and dislocation substructure of 6061-T6 aluminum alloy impacted at cryogenic temperatures. Mater. Trans. 57, 344–350 (2016).CrossRefGoogle Scholar
Adachi, H., Miyajima, Y., Sato, M., and Tsuji, N.: Evaluation of dislocation density for 1100 aluminum with different grain size during tensile deformation by using in situ X-ray diffraction technique. Mater. Trans. 56, 671–678 (2015).CrossRefGoogle Scholar
Sitdikov, O., Avtokratova, E., Sakai, T., and Tsuzaki, K.: Ultrafine-grain structure formation in an Al–Mg–Sc alloy during warm ECAP. Metall. Mater. Trans. A 44, 1087–1100 (2013).CrossRefGoogle Scholar
Wang, W., Ma, Y., Yang, M., Jiang, P., Yuan, F., and Wu, X.: Strain rate effect on tensile behavior for a high specific strength steel: From quasi-static to intermediate strain rates. Metals 8, 11 (2017).CrossRefGoogle Scholar
Fang, D., Duan, Q., Zhao, N., Li, J., Wu, S., and Zhang, Z.: Tensile properties and fracture mechanism of Al–Mg alloy subjected to equal channel angular pressing. Mater. Sci. Eng., A 459, 137–144 (2007).CrossRefGoogle Scholar
Warmuzek, M.: Aluminum–Silicon Casting Alloys: An Atlas of Microfractographs (ASM international, Materials Park, Ohio, 2004).Google Scholar
Pan, L., Liu, K., Breton, F., and Chen, X.G.: Effect of Fe on microstructure and properties of 8xxx aluminum conductor alloys. J. Mater. Eng. Perform. 25, 5201–5208 (2016).CrossRefGoogle Scholar
Dieter, G.E. and Bacon, D.J.: Mechanical Metallurgy (McGraw-Hill, New York, 1986).Google Scholar