Communications - Scientific Letters of the University of Zilina 2012, 14(4):6-10 | DOI: 10.26552/com.C.2012.4.6-10

Changes of Material Properties of Silumin During Age-Hardening

Jan Kohout1
1 Department of Mathematics and Physics, Faculty of Military Technology, University of Defence, Brno, Czech Republic

Simple phenomenological description of age-hardening kinetics of supersaturated solid solution is presented using the sum of exponential functions with negative arguments containing rate constants whose temperature dependence is described by the Arrhenius equation. To determine the number of exponentials in the sum is very important: it should be sufficiently high to obtain accurate description of kinetics and sufficiently low to keep the simplicity and practical applicability of this description. The HB hardness and growth changes (i.e. relative length increase) of silumin during age-hardening are studied separately and then commonly as various manifestations of the same hardening.

Keywords: aluminium alloys; silumin; ageing; hardening; kinetics; hardness; growth

Published: December 30, 2012  Show citation

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Kohout, J. (2012). Changes of Material Properties of Silumin During Age-Hardening. Communications - Scientific Letters of the University of Zilina, 14(4), 6-10. doi: 10.26552/com.C.2012.4.6-10
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    References

    1. KOHOUT, J.: Modelling of Kinetics of Beryllium Bronze Hardening (in Czech), Materials Engineering, 2005, vol. 12, No. 3, pp. 133-137.
    2. KOHOUT, J.: Dimensional Degradation of Rolling Bearing Steels at Elevated Temperatures, Degradacia vlastnosti konstrukcnych materalov [Degradation of Structural Materials Properties], Eds Bokuvka, O., Palcek, P.: Zilinska univerzita, 2003, pp. 155-160 (in Czech).
    3. KOHOUT, J.: Modelling of Changes in Properties of Alloys at Elevated Temperatures. Mater. Sci. and Eng. A, 2007, vol. A462, No. 1-2, pp. 159-163. Go to original source...
    4. KAUFMAN, J. G., ROOY, E. L.: Aluminium Alloy Castings. Properties, Processes and Applications, 3rd edition. Metals Park (OH): ASM International, 2007.
    5. MICHNA, S. et al.: Encyklopedie hliniku [Aluminium encyclopaedia], Presov : Adin, 2005 (in Czech).
    6. KOHOUT, J., VECHET, S.: Regression not only S-N Curves in MS Excel from A to Z, Letna skola unavy materialov 2006 [Summer School of Materials Fatigue 2006], Eds Bokuvka, O. and Palcek, P.: Zilinska univerzita, 2006, pp. 145-154 (in Czech).
    7. CELY, J.: Programove moduly pro fyzikalni vypocty [Programme Modules for Calculations in Physics], Brno : Rektorat UJEP, 1985 (in Czech).
    8. KOHOUT, J.: Description of Kinetics of Dimensional Changes of Silumin During Age-Hardening, Degradacia vlastnosti konstrukcnych materialov [Degradation of Structural Materials Properties], Eds Bokuvka, O., Palcek, P.: Zilinska univerzita, 2011, pp. 75-80.
    9. KOHOUT, J.: Kinetics of Hardness Changes During Age-Hardening of Silumin, Materials Engineering, 2011, vol. 18, No. 4, pp. 134-139.

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