Structure and strengthening of Al-Mg alloys during hot working

Springer Science and Business Media LLC - 1980
M. Raghavan1, E. Shapiro2
1Exxon Research and Engineering, Linden
2Olin Metals Research Laboratories, New Haven

Tóm tắt

Hot deformation studies using torsion testing were conducted on high purity Al and Al-4 at. pct Mg alloy systems in the strain rate range of 0.1 to 1.0 s−1 and temperatures up to 810 K (1000‡F). At all test temperatures, the flow stress of the Al-Mg alloy was higher than that of pure AL The strengthening in hot working (above 522 K (480°F)) is suggested to be due to a higher equilibrium subgrain forest dislocation density. Special quenching procedures were required to show this correlation. Conventional quenching fails to show this because structural details are lost when quenching from high temperatures.

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Tài liệu tham khảo

H. J. McQueen and J. J. Jonas:Treatise on Materials Science and Technology, Plastic Deformation of Materials, vol. 6, pp. 393–493, Academic Press, NY, 1975.

H. J. McQueen and W. J. McG. Tegart:Sci. Am., 1975, vol. 232, pp. 116–25.

M. J. Luton and J. J. Jonas:Can. Met. Quart., 1972, vol. 11, pp. 79–90.

D. H. Sastry, M. J. Luton, and J. J. Jonas:Phil. Mag., 1974, vol. 30, pp. 115–27.

D. J. Abson and J. J. Jonas:J. Nucl. Mater., 1972, vol. 42, pp. 73–85.

J. E. Hockett and H. J. McQueen:Proc. 2nd Int. Conf. Strength of Metals and Alloys, pp. 991–95, ASM, Metals Park, OH, 1970.

C. M. Sellars and W. J. McG. Tegart:Int. Met. Rev., 1972, vol. 17, pp. 1–24.

J. J. Jonas, C. M. Sellars, and W. J. McG. Tegart:Met. Rev., 1969, vol. 14, pp. 1–24.

M. M. Farag, C. M. Sellars, and W. J. McG. Tegart:Deformation Under Hot Working Conditions, pp. 60–67, Iron and Steel Inst., London, (SP 108), 1968.

J. R. Cotner and W. J. McG. Tegart:J. Inst. Metals, 1969, vol. 97, pp. 73–79.

J. H. Hausselt and W. D. Nix:Acta Met., 1977, vol. 25, pp. 595–607.

H. P. Stüwe:Deformation Under Hot Working Condition, Iron and Steel Inst., (SP 108), London, 1968.

J. L. Uvira and J. J. Jonas:Trans. TMS-AIME, 1968, vol. 242, pp. 1619–26.

R. A. Petkovic Djaic and J. J. Jonas:J. Iron Steel Inst., 1972, vol. 210, pp. 256–61 ;Met. Trans., 1973, vol. 4, pp. 4–14.

R. A. Petkovic, M. J. Luton, and J. J. Jonas:Can. Met. Quart., 1975, vol. 14, pp. 137–45.

H. J. McQueen and S. Bergerson:Met. Sci. J., 1974, vol. 8, pp. 325–31.

D. E. Mikkola and J. B. Cohen:Local Atomic Arrangements Studied by X-ray Diffraction, p. 319, Gordon and Breach Science Publishers, NY, 1966.

W. G. Truckner and D. E. Mikkola:J. Appl. Physics, 1969, vol. 40, pp. 5021–29.

T. B. Vaughan:Deformation Under Hot Working Conditions, pp. 68–77, Iron and Steel Inst., (SP 108), London, 1968.

C. P. Gazzara, J. J. Stiglich, Jr., F. P. Meyer, and A. M. Hansen:Advances in X-ray Analysis, vol. 12, pp. 257–68, Plenum Press, NY, 1969.

B. E. Warren:X-ray Studies of Deformed Metals, Progress in Metals Physics, vol. 8, pp. 147–202, Pergamon Press, NY, 1959.

R. L. Rothman and J. B. Cohen:Advances in X-ray Analysis, vol. 12, pp. 208–35, Plenum Press, NY, 1969.

H. Conrad:Mechanical Behavior of Materials at Elevated Temperatures, pp. 149–217, McGraw-Hill Publishing Co., NY, 1961.

A. G. Evans and R. D. Rawlings:Phys. Status Solidi, 1969, vol. 34, pp. 9–30.

W. Jost:Diffusion in Solids, Liquids, Gases, Academic Press, Inc., NY, 1952.

L. J. Cuddy:Met. Trans., 1970, vol. 1, pp. 395–401.

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