Ductile to Brittle Transition of Pure Al Sheet Constrained by Parallel Bi-Interface with High Strength Al Alloy

Abstract:

Article Preview

The ductile to brittle transition (DBT) phenomena in pure metal was reviewed briefly with the emphasis on effects of stress triaxiality and confined dislocation slip. Experimental and numerical methods were used to investigate the DBT of inter pure Al sheet sandwiched by 2024 Al alloy through explosive cladding. The experimental results clearly showed that this transition has taken place with its decreasing thickness, h , characterized by decreasing fracture toughness and local cleavage patterns where the {100} facets are dominant. Finite element calculations show that it is the constraint of elastic fraction of substrates on the yield zone in inter Al layer that results in an increasingly high triaxial tensile stress, which makes the material become brittle. The banded-grain boundaries have a similar role to strong interface in preventing dislocations slip.

Info:

Periodical:

Key Engineering Materials (Volumes 297-300)

Edited by:

Young-Jin Kim, Dong-Ho Bae and Yun-Jae Kim

Pages:

768-773

Citation:

J. Sun et al., "Ductile to Brittle Transition of Pure Al Sheet Constrained by Parallel Bi-Interface with High Strength Al Alloy ", Key Engineering Materials, Vols. 297-300, pp. 768-773, 2005

Online since:

November 2005

Authors:

Export:

Price:

$38.00

[1] J.R. Rice and R. Thomson: Phil Mag A Vol. 9 (1973), p.73.

[2] J.R. Rice and M.A. Johnsons: Inelastic behavior of solids (Mcgraw-Hill Publications, NewYork 1970).

[3] J. Daming, S. Fenglian, H. Bonde and L. Tingquan: Mater. Sci. Lett. Vol. 15 (1996), p.1597.

[4] A. P Reynolds and G.E. Stoner: Met. Trans, Vol. 22A (1991), p.1849.

[5] A. Deschamps, S. Peron, Y. Brechet, J.C. Ehrstrom and L. Poizat: Mat Sci & Eng Vol. A319-321 (2001), p.583.

[6] F. Ebrahimi, Q. Zhai and K. Dan: Material science and engineering Vol. A255 (1998), p.20.

[7] A.G. Evens and B.J. Dalgleish: Acta metal mater Vol. 40 (1992), p. S295.

[8] Li. M and W.O. Sobotejo: Metall Trans, Vol. 31A (2000), p.1385.

[9] J.H. Chen, Q. Wang, G.Z. Wang and Z. Li: Acta materialia Vol. 51 (2003), p.1841.

[10] C. Betegon, F. J Belzunce and C. Rodriguez: Acta mater Vol. 46 (1996), p.1055.

[11] A.G. Varias, Z. Suo and C.F. Shih: J. Mech. Phys. SolidsVol. 39 (1991), p.963.

[12] K.J. Hsia, Z. Suo and W. Yang: J. Mech. Phys. Solid Vol. 42 (1994), p.877.

[13] C. Yan, J.H. Chen, J. Sun and Z. Wang: Metall Trans Vol. 24A (1993), p.1381.

[14] J.H. Chen, C. Yan and J. Sun: Acta Metall. Mater Vol. 42 (1994), p.251.

[15] E. Arzt: Acta mater Vol. 46 (1998), p.5611.

[16] J. Sun and J.D. Boyd: Int. J. Press vessels piping Vol. 77 (2000), p.369.

Fetching data from Crossref.
This may take some time to load.