30 citations · 34 across the 6 of their papers we have counts for
6 papers
Deconvoluting Thermomechanical Effects in X-ray Diffraction Data using Machine Learning
Rachel E. Lim, Shun-Li Shang, Chihpin Chuang +3
X-ray diffraction is ideal for probing sub-surface state during complex or rapid thermomechanical loading of crystalline materials. However, challenges arise as the size of diffrac…
Combining Synchrotron X-ray Diffraction, Mechanistic Modeling, and Machine Learning for In Situ Subsurface Temperature Quantification during Laser Melting
Rachel E. Lim, Tuhin Mukherjee, Chihpin Chuang +3
Laser melting, such as that encountered during additive manufacturing (AM), produces extreme gradients of temperature in both space and time, which in turn influence microstructura…
Non-destructive Depth-Resolved Characterization of Residual Strain Fields in High Electron Mobility Transistors using Differential Aperture X-ray Microscopy
Darren C. Pagan, Md Abu Jafar Rasel, Rachel E. Lim +3
Localized residual stress and elastic strain concentrations in microelectronic devices often affect the electronic performance, resistance to thermomechanical damage, and, likely,…
The influence of alloying on slip intermittency and the implications for dwell fatigue in titanium
Felicity F. Worsnop, Rachel E. Lim, Joel V. Bernier +5
Dwell fatigue, the reduction in fatigue life experienced by titanium alloys due to holds at stresses as low as 60% of yield, has been implicated in several uncontained jet engine f…
Three-Dimensional In Situ Texture Development and Plasticity Accumulation in the Cyclic Loading of an alpha-Ti Alloy
Rachel E. Lim, Joel V. Bernier, Darren C. Pagan +2
High-energy synchrotron x-rays are used to track grain rotations and the micromechanical evolution of a hexagonal Ti-7Al microstructure as it is cyclically loaded below its macrosc…
Grain-Resolved Temperature-Dependent Anisotropy in Hexagonal Ti-7Al Revealed by Synchrotron X-Ray Diffraction
Rachel E. Lim, Darren C. Pagan, Donald E. Boyce +3
Hexagonal metals have anisotropic coefficients of thermal expansion causing grain-level internal stresses during heating. High energy x-ray diffraction microscopy, a non-destructiv…