Effect of Heat Treatment on the Portevin-Le Chatelier Effect of Al-2.5%Mg Alloy
An experimental study is presented on the effect
of microstructural change on the Portevin-Le Chatelier effect
behaviour of Al-2.5%Mg alloy. Tensile tests are performed on
the as received and heat treated (at 400 ºC for 16 hours)
samples for a wide range of strain rates. The serrations
observed in the stress-time curve are investigated from
statistical analysis point of view. Microstructures of the
samples are characterized by optical metallography and X-ray
diffraction. It is found that the excess vacancy generated due
to heat treatment leads to decrease in the strain rate sensitivity
and the increase in the number of stress drop occurrences per
unit time during the PLC effect. The microstructural
parameters like domain size, dislocation density have no
appreciable effect on the PLC effect as far as the statistical
behavior of the serrations is considered.
[1] A. Sarkar, A. Chatterjee, P. Barat and P. Mukherjee, "Comparative study
of the Portevin-Le Chatelier effect in interstitial and substitutional
alloy," Mat. Sci. Eng. A, vol. 459, pp. 361-365, June 2007.
[2] P. Barat, A. Sarkar, P. Mukherjee, S.K. Bandyopadhyay, " Scaling
behavior of the Portevin-Le Chatelier effect in Al-2.5%Mg alloy," Phy.
Rev. Lett., vol. 94, pp. 055502.1-055502.4, Feb. 2005.
[3] A.H. Cottrell, Dislocations and plastic flow in crystals, London, Oxford
University Press, 1953.
[4] P.G. McCormick, "A model for the Portevin-Le Chatelier effect in the
substitutional alloys," Acta Metall., vol. 20, pp. 351-354, March, 1972.
[5] J.D. Baird, The Inhomogeneity of Plastic Deformation, American
Society of Metals, OH, 1973.
[6] A. Van den Beukel, "Theory of the effect of dynamic strain aging on
mechanical properties," Phy. Status Sol (a), vol. 30, pp. 197-206, Feb.
1975.
[7] A. Van den Beukel, U.F. Kocks, "The strain dependence of static and
dynamic strain aging," Acta Metall., vol. 30, pp. 1027-1034, May 1982.
[8] J. Schliph, "On the kinetics of static and dynamic strain aging," Scripta
Metall. Mater., vol. 31, pp. 909-914, Oct. 1994.
[9] R.C. Picu, "A mechanism for the negative strain rate sensitivity of dilute
solute solutions," Acta Mater., vol. 52, pp. 3447-3458, July 2004.
[10] H. Jiang, Q. Zhang, X. Chen, Z. Chen, Z. Jiang, X. Wu, J. Fan, "Three
types of Portevin -Le Chatelier effect: Experiment and modeling," Acta
Mater., vol. 55, pp. 2219-2228, April 2007.
[11] A.W. Sleeswyk, " Slow strain hardening of ingot iron," Acta Metall.,
vol. 6, pp. 598-603, Sep. 1958.
[12] R.A. Mulford, U.F. Kocks, "New observations on the mechanisms of
dynamic strain aging and of jerky flow," Acta Metall., vol. 27, pp. 1125-
1134, July 1979.
[13] F. Chmelik, F.B. Klose, H. Dierke, J. Sachl, H. Neuhauser, P. Lukac,
"Investigating the Portevin- Le Chatelier effect in strain rate and stress
rate controlled tests by the acoustic emission and laser extensometry
techniques," Mat. Sci. Eng. A, vol. 462, pp. 53-60, July 2007.
[14] J.M. Robinson and M.P. Shaw, "The influence of specimen geometry on
the Portevin- Le Chatelier effect in an Al-Mg alloy," Mat. Sci. Eng. A,
vol. 159, pp. 159-165, Dec. 1992.
[15] K. Chihab, Y. estrin, L.P. Kubin and J. Vergnol, " The kinetics of the
Portevin-Le Chatelier bands in in an Al-5at%MG alloy," Scripta Metall.,
vol. 21, pp. 203-208, Feb. 1987.
[16] J. Balik, P. Lukac and L.P. Kubin, " Inverse critical strains for Jerky
flow in Al-Mg alloys," Scripta Mater., vol. 42, pp. 465-471, Feb. 2000.
[17] M. Abbadi,P. Hahner and A. Zeghloul, "On the characteristics of the
Portevin-Le Chatelier bands in aluminum alloy 5182 under stress
controlled and strain controlled tensile testing," Mat. Sci. Eng. A, vol.
337, pp. 194-201, Nov. 2002.
[18] B.J. Roopchand and J.G. Morris, "The effect of cold work on the strain
rate sensitivity of 5086 aluminum alloy," Scripta Metall., vol. 7, pp. 839-
845, Aug. 1973.
[19] Wei Wen and J.G. Morris, "The effect of cold rolling and annealing on
the serrated yielding phenomenon of AA5182 aluminum alloy," Mat.
Sci. Eng. A, vol. 373, pp.204-216, May 2004.
[20] Defect and microstructure analysis by diffraction, R.L. Synder, J. Fiala
and H.J. Bunge, Ed. New York, Oxford University Press, 1999.
[21] Diffraction analysis of the microstructure of materials, vol. 68, E.J.
Mittemeijer and P. Scardi Ed. Berlin, Springer-Verlag, 2004.
[22] I. Groma, "X-ray line broadening due to an inhomogeneous dislocation
distribution," Phy. Rev. B, vol. 57, pp. 7535-7542, April 1998.
[23] A. Borbely, I. Groma, "Variance method for the evaluation of the
particle size and dislocation density from x-ray Bragg peaks," App. Phy.
Lett., vol. 79, pp. 1772-1774, Sep. 2001.
[24] Th. H.de Keijser J. I.Langford E. J.Mittemeijer A. B. P.Vogels, "Use of
the Voigt function in a single-line method for the analysis of X-ray
diffraction line broadening," J. Appl. Cryst., vol. 15, pp. 308-314, June
1982.
[25] R.C. Picu, G. Vincze, J.J. Gracio and F. Barlat, "Effect of solute
distribution on the strain rate sensitivity of solute solutions," Scripta
Mater., vol. 54, pp. 71-75, Jan 2006.
[26] M.A. Lebyodkin, Y. Brechet, Y. Estrin and L.P. Kubin, "Statistics of the
Catastrophic Slip Events in the Portevin-Le Châtelier Effect," Phy. Rev.
Lett., vol. 74, pp. 4758-4761, June 1995.
[27] M. Lebyodkin, Y. Brechet, Y. Estrin and L.P. Kubin, "Statistical
behavior and strain localization pattern in the Portevin-Le Chatelier
effect," Acta Mater., vol. 44, pp. 4531-4541, Nov. 1996.
[28] J. May, H.W. Hoppel and M. Goken, "Strain rate sensitivity of ultrafinegrained
aluminum processed by severe plastic deformation," Scripta
Mater., vol. 53, pp. 189-194, July 2005.
[29] L.P. Kubin and Y. Estrin, "Evolution of the dislocation densities and the
critical conditions for the Portevin-Le Chatelier effect," Acta Metall.
Mater., vol. 38, pp. 697-708, May 1990.
[30] R. Shabadi, S. Kumar, H.J. Roven and E.S. Dwarakadasa,
"Characterization of the PLC band parameters using laser speckle
technique," Mat. Sci. Eng. A, vol. 364, pp. 140-150, Jan. 2004.
[31] H. Louche, P. Vacher and R. Arrieux, "Thermal observations associated
with the Portevin-Le Chatelier effect in an Al-Mg alloy," vol. 404, pp.
188-194, Sep. 2005.
[32] Q. Zhang, Z. Jiang, H. Jiang, Z. Chen and X. Wu, "On the propagation
and pulsation of Portevin-Le Chatelier deformation bands: An
experimental study with digital speckle pattern metrology," Int. J.
Plasticity, vol. 21, pp. 2150-2173, Nov. 2005.
[33] F. B. Klose, A. Ziegenbein, F. Hagemann, H. Neuhäuser, P. Hähner, M.
Abbadi, A. Zeghloul, "Analysis of Portevin-Le Chatelier serrations of
type B in Al-Mg," Mat. Sci. Eng. A, vol. 369, pp. 76-81, March 2004.
[1] A. Sarkar, A. Chatterjee, P. Barat and P. Mukherjee, "Comparative study
of the Portevin-Le Chatelier effect in interstitial and substitutional
alloy," Mat. Sci. Eng. A, vol. 459, pp. 361-365, June 2007.
[2] P. Barat, A. Sarkar, P. Mukherjee, S.K. Bandyopadhyay, " Scaling
behavior of the Portevin-Le Chatelier effect in Al-2.5%Mg alloy," Phy.
Rev. Lett., vol. 94, pp. 055502.1-055502.4, Feb. 2005.
[3] A.H. Cottrell, Dislocations and plastic flow in crystals, London, Oxford
University Press, 1953.
[4] P.G. McCormick, "A model for the Portevin-Le Chatelier effect in the
substitutional alloys," Acta Metall., vol. 20, pp. 351-354, March, 1972.
[5] J.D. Baird, The Inhomogeneity of Plastic Deformation, American
Society of Metals, OH, 1973.
[6] A. Van den Beukel, "Theory of the effect of dynamic strain aging on
mechanical properties," Phy. Status Sol (a), vol. 30, pp. 197-206, Feb.
1975.
[7] A. Van den Beukel, U.F. Kocks, "The strain dependence of static and
dynamic strain aging," Acta Metall., vol. 30, pp. 1027-1034, May 1982.
[8] J. Schliph, "On the kinetics of static and dynamic strain aging," Scripta
Metall. Mater., vol. 31, pp. 909-914, Oct. 1994.
[9] R.C. Picu, "A mechanism for the negative strain rate sensitivity of dilute
solute solutions," Acta Mater., vol. 52, pp. 3447-3458, July 2004.
[10] H. Jiang, Q. Zhang, X. Chen, Z. Chen, Z. Jiang, X. Wu, J. Fan, "Three
types of Portevin -Le Chatelier effect: Experiment and modeling," Acta
Mater., vol. 55, pp. 2219-2228, April 2007.
[11] A.W. Sleeswyk, " Slow strain hardening of ingot iron," Acta Metall.,
vol. 6, pp. 598-603, Sep. 1958.
[12] R.A. Mulford, U.F. Kocks, "New observations on the mechanisms of
dynamic strain aging and of jerky flow," Acta Metall., vol. 27, pp. 1125-
1134, July 1979.
[13] F. Chmelik, F.B. Klose, H. Dierke, J. Sachl, H. Neuhauser, P. Lukac,
"Investigating the Portevin- Le Chatelier effect in strain rate and stress
rate controlled tests by the acoustic emission and laser extensometry
techniques," Mat. Sci. Eng. A, vol. 462, pp. 53-60, July 2007.
[14] J.M. Robinson and M.P. Shaw, "The influence of specimen geometry on
the Portevin- Le Chatelier effect in an Al-Mg alloy," Mat. Sci. Eng. A,
vol. 159, pp. 159-165, Dec. 1992.
[15] K. Chihab, Y. estrin, L.P. Kubin and J. Vergnol, " The kinetics of the
Portevin-Le Chatelier bands in in an Al-5at%MG alloy," Scripta Metall.,
vol. 21, pp. 203-208, Feb. 1987.
[16] J. Balik, P. Lukac and L.P. Kubin, " Inverse critical strains for Jerky
flow in Al-Mg alloys," Scripta Mater., vol. 42, pp. 465-471, Feb. 2000.
[17] M. Abbadi,P. Hahner and A. Zeghloul, "On the characteristics of the
Portevin-Le Chatelier bands in aluminum alloy 5182 under stress
controlled and strain controlled tensile testing," Mat. Sci. Eng. A, vol.
337, pp. 194-201, Nov. 2002.
[18] B.J. Roopchand and J.G. Morris, "The effect of cold work on the strain
rate sensitivity of 5086 aluminum alloy," Scripta Metall., vol. 7, pp. 839-
845, Aug. 1973.
[19] Wei Wen and J.G. Morris, "The effect of cold rolling and annealing on
the serrated yielding phenomenon of AA5182 aluminum alloy," Mat.
Sci. Eng. A, vol. 373, pp.204-216, May 2004.
[20] Defect and microstructure analysis by diffraction, R.L. Synder, J. Fiala
and H.J. Bunge, Ed. New York, Oxford University Press, 1999.
[21] Diffraction analysis of the microstructure of materials, vol. 68, E.J.
Mittemeijer and P. Scardi Ed. Berlin, Springer-Verlag, 2004.
[22] I. Groma, "X-ray line broadening due to an inhomogeneous dislocation
distribution," Phy. Rev. B, vol. 57, pp. 7535-7542, April 1998.
[23] A. Borbely, I. Groma, "Variance method for the evaluation of the
particle size and dislocation density from x-ray Bragg peaks," App. Phy.
Lett., vol. 79, pp. 1772-1774, Sep. 2001.
[24] Th. H.de Keijser J. I.Langford E. J.Mittemeijer A. B. P.Vogels, "Use of
the Voigt function in a single-line method for the analysis of X-ray
diffraction line broadening," J. Appl. Cryst., vol. 15, pp. 308-314, June
1982.
[25] R.C. Picu, G. Vincze, J.J. Gracio and F. Barlat, "Effect of solute
distribution on the strain rate sensitivity of solute solutions," Scripta
Mater., vol. 54, pp. 71-75, Jan 2006.
[26] M.A. Lebyodkin, Y. Brechet, Y. Estrin and L.P. Kubin, "Statistics of the
Catastrophic Slip Events in the Portevin-Le Châtelier Effect," Phy. Rev.
Lett., vol. 74, pp. 4758-4761, June 1995.
[27] M. Lebyodkin, Y. Brechet, Y. Estrin and L.P. Kubin, "Statistical
behavior and strain localization pattern in the Portevin-Le Chatelier
effect," Acta Mater., vol. 44, pp. 4531-4541, Nov. 1996.
[28] J. May, H.W. Hoppel and M. Goken, "Strain rate sensitivity of ultrafinegrained
aluminum processed by severe plastic deformation," Scripta
Mater., vol. 53, pp. 189-194, July 2005.
[29] L.P. Kubin and Y. Estrin, "Evolution of the dislocation densities and the
critical conditions for the Portevin-Le Chatelier effect," Acta Metall.
Mater., vol. 38, pp. 697-708, May 1990.
[30] R. Shabadi, S. Kumar, H.J. Roven and E.S. Dwarakadasa,
"Characterization of the PLC band parameters using laser speckle
technique," Mat. Sci. Eng. A, vol. 364, pp. 140-150, Jan. 2004.
[31] H. Louche, P. Vacher and R. Arrieux, "Thermal observations associated
with the Portevin-Le Chatelier effect in an Al-Mg alloy," vol. 404, pp.
188-194, Sep. 2005.
[32] Q. Zhang, Z. Jiang, H. Jiang, Z. Chen and X. Wu, "On the propagation
and pulsation of Portevin-Le Chatelier deformation bands: An
experimental study with digital speckle pattern metrology," Int. J.
Plasticity, vol. 21, pp. 2150-2173, Nov. 2005.
[33] F. B. Klose, A. Ziegenbein, F. Hagemann, H. Neuhäuser, P. Hähner, M.
Abbadi, A. Zeghloul, "Analysis of Portevin-Le Chatelier serrations of
type B in Al-Mg," Mat. Sci. Eng. A, vol. 369, pp. 76-81, March 2004.
@article{"International Journal of Chemical, Materials and Biomolecular Sciences:63978", author = "A. Chatterjee and A. Sarkar and N. Gayathri and P. Mukherjee and P. Barat", title = "Effect of Heat Treatment on the Portevin-Le Chatelier Effect of Al-2.5%Mg Alloy", abstract = "An experimental study is presented on the effect
of microstructural change on the Portevin-Le Chatelier effect
behaviour of Al-2.5%Mg alloy. Tensile tests are performed on
the as received and heat treated (at 400 ºC for 16 hours)
samples for a wide range of strain rates. The serrations
observed in the stress-time curve are investigated from
statistical analysis point of view. Microstructures of the
samples are characterized by optical metallography and X-ray
diffraction. It is found that the excess vacancy generated due
to heat treatment leads to decrease in the strain rate sensitivity
and the increase in the number of stress drop occurrences per
unit time during the PLC effect. The microstructural
parameters like domain size, dislocation density have no
appreciable effect on the PLC effect as far as the statistical
behavior of the serrations is considered.", keywords = "Dynamic strain ageing, Heat treatment, Portevin-LeChatelier effect", volume = "4", number = "10", pages = "670-5", }
