Thomas H. Gnaupel-Herold

Publications

Assessment of Martensitic Transformation Paths Based on Transformation Potential Calculations

November 19, 2018

Author(s):

Adam A. Creuziger, Whitney Poling, Thomas H. Gnaupel-Herold

Transformation potentials for two different martensitic transformation paths are calculated and compared to experimentally measured austenite textures of an...

Experimental Investigation of Residual Stress and its Impact on Machining in Hybrid Additive/Subtractive Manufacturing

June 22, 2018

Author(s):

Jarred C. Heigel, Thien Q. Phan, Jason C. Fox, Thomas H. Gnaeupel-Herold

Hybrid Manufacturing leverages the advantages of both additive manufacturing (AM) with machining to create parts that have complex geometries, tight tolerances...

Design of an Octo-Strain Specimen for Biaxial Tension Testing

June 18, 2018

Author(s):

Justin L Milner, Thomas H. Gnaeupel-Herold

A custom biaxial testing fixture was designed to evaluate a new specimen geometry for complex loading paths. Biaxial testing is commonly used to evaluate work-...

Stress Profiling in Cold-Spray Coatings by Different Experimental Techniques: Neutron Diffraction, X-ray Diffraction and Slitting Method

April 01, 2018

Author(s):

Vladimir Luzin, Kevin Spencer, Michael R. Hill, Tao Wei, Michael Law, Thomas H. Gnaeupel-Herold

The residual stress profiles in Cu and Al coatings sprayed using kinetic metallization to thickness of ~2 mm have been studied. Due to specific parameters of...

Assessment of bias errors caused by texture and sampling methods in diffraction-based steel phase measurements

March 12, 2018

Author(s):

Adam A. Creuziger, Christopher A. Calhoun, Whitney Poling, Thomas H. Gnaupel-Herold

Many advanced high-strength steels rely on a metastable austenite phase for improvements in strength and formability. To date, no method has demonstrated the...