A Test Method for Quantifying Residual Stress Due to Heat Treatment in Metals 2006-01-0319
Quantification of residual stresses is an important engineering problem impacting manufacturabilty and durability of metallic components. An area of particular concern is residual stresses that can develop during heat treatment of metallic components. Many heat treatments, especially in heat treatable cast aluminum alloys, involve a water-quenching step immediately after a solution-treatment cycle. This rapid water quench has the potential to induce high residual stresses in regions of the castings that experience large thermal gradients. These stresses may be partially relaxed during the aging portion of the heat treatment. The goal of this research was to develop a test sample and quench technique to quantify the stresses created by steep thermal gradients during rapid quenching of cast aluminum. The development and relaxation of residual stresses during the aging cycle was studied experimentally with the use of strain gauges. Experimental and modeling results will be discussed in the development of the residual stress test casting.
Citation: Godlewski, L., Su, X., Allison, J., Gustafson, P. et al., "A Test Method for Quantifying Residual Stress Due to Heat Treatment in Metals," SAE Technical Paper 2006-01-0319, 2006, https://doi.org/10.4271/2006-01-0319. Download Citation
Author(s):
Larry A. Godlewski, Xuming Su, John E. Allison, Peter Gustafson, Tresa M. Pollock
Affiliated:
Ford Motor Company, University of Michigan
Pages: 10
Event:
SAE 2006 World Congress & Exhibition
Also in:
Experiments in Automotive Engineering - Experimental Test-SP-2033, SAE 2006 Transactions Journal of Materials and Manufacturing-V115-5