Test Matrix for Heat Exposure of Aluminum Alloys at Various Times and Temperatures

Abstract:

The purpose of this study is to characterize the effects of heat damage on the electrical conductivity and static mechanical properties of aluminum alloys. The data resulting from the experiments of thermal exposure of several aluminum alloys are used to model the relations that describe the dependence of the electrical conductivity and hardness on the two main variables of these experiments: the temperature and the time of exposure. The dependence of yield strength and ultimate tensile strength on hardness values is characterized. For each case, different materials (alloys) exhibit similar general trends although there are different coefficients for each material to satisfy the general relation.

• Periodical: Defect and Diffusion Forum (Volume 354)
• Pages: 175-181
• DOI: https://doi.org/10.4028/www.scientific.net/DDF.354.175
• Online since: June 2014
• Authors: Abdulhamid Al-Abduljabbar*, O.S. Es-Said
• Keywords: Correlations between Physical, Heat Damage, Heat Treatable Aluminum Alloys, Mechanical Property, Thermal Exposure

References

[1] Aluminum: Properties and Physical Metallurgy. Editor John E. Hatch (ASM, Materials Park OH, 1984)

[2] N. Azipuru, D. Le, J. McDonald, L. McLennan, S. Tewfik, E.W. Lee, D. Paitkowski, J. Foyos, J. Ogren, J. McLennan, O.S. Es-Said: The effect of flash annealing on the mechanical and electrical properties of previously used AM2 mats composed of Al 6061-T6, Engineering Failure Analysis 12 (2005) 691-698.

DOI: 10.1016/j.engfailanal.2004.12.001

[3] D. Paitkowski: Evaluation of AM2 Mat subject to VTOL aircraft operations, (NAVAIR, Component Analysis Laboratory, Lakehurst, NJ, Analysis Number 2004-04).

[4] Charles J. Hellier, Handbook of Nondestructive Evaluation (McGraw-Hill, New York, NY 2001)

[5] D. J. Hagemaier: Evaluation of Heat Damage to Aluminum Aircraft Structures, Materials Evaluation 40 (1982), 962-969.

[6] DoD Test Method for Electrical Conductivity Test for Verification of Heat Treatment of Aluminum alloy Eddy Current Method, (DoD Washington, DC Mil-STD-1537B, July 1988).

[7] E.W. Lee, T. Oppenheim, K. Robinson, B. Aridkahari, N. Neylan, D. Gebreyesus, M. Richardson, M. Arzate, C. Bove, M. Iskandar, C. Sanchez, E. Toss, I. Martinez, D. Arenas, J. Ogren, J. Mclennan, R. Clark, W.E. Frazier, and O.S. Es-Said: The Effect of Thermal Exposure on the Electrical Conductivity and Static Mechanical Behavior of Several Age Hardenable Aluminum Alloys, Engineering Failure Analysis Journal Vol. 14 (2007), 1538–1549.

DOI: 10.1016/j.engfailanal.2006.12.008