The Influence of Pulsating Strain Rates on the Superplastic Deformation Behaviour of Al-Alloy AA5083 Investigated by Means of Cone Test

Abstract:

• Periodical: Materials Science Forum (Volumes 447-448)
• Pages: 139-144
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.447-448.139
• Online since: February 2004
• Authors: Mihai Vulcan, Klaus Siegert, Dorel Banabic
• Keywords: AA5083 Aluminum Alloy, Bulging, Cone Test, Pulsating Strain Rate, Superplasticity

References

[1] F. Jovane: Int. J. Mech. Sci. Vol. 5 (1968), pp.505-519.

[2] A. Dutta and A.K. Mukherjee: Mat. Sci. Eng. Vol. A137 (1992), pp.9-13.

[3] K.C. Chan and K.K. Chow: Int. J. Mech. Sci. Vol. 44 (2002), pp.1467-1478.

[4] C.K. Syn, M.J. O’Brien, D.R. Lesuer and O.D. Sherby: Modeling the Peformance of Engineering Structural Materials II (The Minerals, Metals & Materials Society, USA 2001).

[5] K. Siegert: New Development in Sheet Metal Forming (MAT INFO WerkstoffInformationsgesellschaft mbH, Germany 2002).

[6] Superplastic Forming: Software Manual SPF (Swiss Federal Institute of Technology Zürich, Switzerland 1996).

[7] J.C. Gelin, P. Picart: Numisheet’99: Numerical Simulations of 3-D Sheet Metal Forming Processes (Impr. BURS, Besancon, France 1999), 581-586.

[8] R. Verma et al: Mat. Sci. Eng. Vol. A191 (1995), pp.143-150. 0.

05.

1.

15.

2 0 200 400 600 800 1000 1200 Time [s] Pressure [MPa] Pressure-Input Pressure-Output Pressure-Time Path without Pulsations.

6.

7.

8.

9 1.

[1] 1.

[1] 2.

[1] 3 40 60 80 100 120 140 160 Pulsating Period [s] Log. Strain [-].

[1] E-04 2. E-04 Amplitude [s-1] 1x10-4 2x10 -4 Fig. 7 Pressure-time path for superplastic forming into a conical die with an amplitude of the strain rate of 1 x 10 -4 s-1 and a pulsating period of 150 s. Fig. 8 Logarithmic strain to failure versus pulsating period and amplitude of the strain rate.