Publications
Enhanced Surface Residual Compression of Carburized Steel Parts Using Laser Peening Process with Preload
Residual stresses are critical to the fatigue performance of parts. In general, compressive residual stress in the surface is beneficial, and residual tension is detrimental because of the effect of stress on crack initiation and propagation. Carburizatio
January 2, 2025
Bending Fatigue Strength Improvement of Carburized Gears
It is well established that carburization of low alloy steels promotes compressive residual surface stress upon quenching, and that compressive surface stresses enhance fatigue life. In an effort to build upon these established facts, a US Army sponsored
January 2, 2025
Sources of Heat Treatment Distortion and Approaches for Distortion Reduction during Quench Hardening Process
Heat treatment of steels is a process of modifying the mechanical properties by solid-state phase transformations or microstructural changes through heating and cooling. The material volume changes with phase transformations, which is one of the main sour
December 13, 2024
Modeling Alloy Carbide Formation and Coarsening during High-temperature Tempering of Ferrium C64 Steel
High-alloy steels, like Ferrium C64, are used in powertrain components due to their corrosion resistance and high temperature resistance properties. These steels undergo a tempering temperature that is well above traditional steel, and during this process
December 13, 2024
Materials Model Development for AA6061 Aluminum
Aluminum alloy 6061 (AA6061) is widely used in industry due to its excellent formability, corrosion resistance, weldability, and strong mechanical properties after heat treatment. AA6061 is hardened through precipitation of alloying elements that act as b
July 18, 2024
Predicting the Heat-Treat Response of a Carburized Helical Gear
Using the DANTE software, a finite element simulation was developed and executed to study the response of a carburized 5120 steel helical gear to quenching in molten salt. The computer simulation included heat-up, carburization, transfer and immersion in
February 6, 2024
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