Evaluation of Welding Residual Stress Levels Through Shot Peening and Heat Treating 2000-01-2564
The welding process induces residual tensile stress that is detrimental to fatigue life. Tensile stresses act to stretch or pull apart the surface of the material. With enough load cycles at a high enough tensile stress, a metal surface will initiate a crack. Significant improvements in fatigue life can be obtained by modifying the residual stress levels in the material. Two methods of performing this are through heat treating and shot peening. Both will be thoroughly analyzed in this paper through the use of x-ray diffraction. X-ray diffraction is the most accurate and best-developed method to characterize the residual stress in polycrystalline material.
Citation: Molzen, M. and Hornbach, D., "Evaluation of Welding Residual Stress Levels Through Shot Peening and Heat Treating," SAE Technical Paper 2000-01-2564, 2000, https://doi.org/10.4271/2000-01-2564. Download Citation
Author(s):
Mark S. Molzen, Doug Hornbach
Affiliated:
Metal Improvement Co., Inc., Lambda Research, Inc.
Pages: 9
Event:
International Off-Highway & Powerplant Congress & Exposition
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
SAE 2000 Transactions Journal of Commercial Vehicles-V109-2
Related Topics:
Heat treatment
Tensile strength
Fatigue
Peening
Welding
Metals
SAE MOBILUS
Subscribers can view annotate, and download all of SAE's content.
Learn More »
