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- Publications
- Influence
Twin migration in Fe-based bcc crystals: theory and experiments
- A. Ojha, H. Sehitoglu, L. Patriarca, H. Maier
- Materials Science
- 14 May 2014
We establish an overall energy expression to determine the twin migration stress in bcc metals. Twin migration succeeds twin nucleation often after a load drop, and a model to establish twin… Expand
Twin nucleation and migration in FeCr single crystals
- L. Patriarca, W. Abuzaid, H. Sehitoglu, H. Maier, Y. Chumlyakov
- Materials Science
- 2013
Abstract Tension and compression experiments were conducted on body-centered cubic Fe -47.8 at pct. Cr single crystals. The critical resolved shear stress (CRSS) magnitudes for slip nucleation, twin… Expand
Molecular dynamics modeling of NiTi superelasticity in presence of nanoprecipitates
- P. Chowdhury, L. Patriarca, G. Ren, H. Sehitoglu
- Materials Science
- 1 June 2016
Abstract The presence of nano-sized coherent precipitates is well known to have crucial impact on the mechanical behaviors of a broad class of superelastic alloys. As a representative material, the… Expand
Shape memory behavior in Fe3Al-modeling and experiments
- A. Ojha, S. Alkan, L. Patriarca, H. Sehitoglu, Y. Chumlyakov
- Materials Science
- 29 July 2015
The Fe3Al alloy with D03 structure exhibits large recoverable strains due to reversible slips. Tension and compression experiments were conducted on single crystals of Fe3Al, and the onset of slip in… Expand
Shape memory strains and temperatures in the extreme
- H. Sehitoglu, L. Patriarca, Y. Wu
- Materials Science
- 1 April 2017
It is well known that the achievement of high transformation strains in shape memory alloys (SMAs) has been curtailed by plastic deformation mediated via dislocation slip. In particular, the… Expand
Slip transmission in bcc FeCr polycrystal
- L. Patriarca, W. Abuzaid, H. Sehitoglu, H. Maier
- Materials Science
- 20 December 2013
Abstract Grain boundaries induce heterogeneities in the deformation response of polycrystals. Studying these local variations in response, measured through high resolution strain measurement… Expand
Microscopic Analysis of Fatigue Damage Accumulation in TiAl Intermetallics
- L. Patriarca, C. Içöz, M. Filippini, S. Beretta
- Materials Science
- 16 June 2014
In order to design efficient and light components for the aircraft industry preserving the safety of the design, more sophisticated design criteria are required for the application of new materials.… Expand
Shape memory functionality under multi-cycles in NiTiHf
- H. Sehitoglu, Y. Wu, L. Patriarca, L. Patriarca
- Materials Science
- 1 March 2017
Abstract The functionality of NiTiHf (25%Hf) shape memory alloy (SMA) was studied under isobaric temperature cycling experiments. Both the local and overall strains, determined with digital image… Expand
High-temperature superelasticity of Ni50.6Ti24.4Hf25.0 shape memory alloy
- L. Patriarca, H. Sehitoglu
- Materials Science
- 1 May 2015
Changes in transformation temperatures and high-temperature mechanical behavior of the new Ni50.6Ti34.4Hf25.0 alloy were determined after selected aging treatments. Differential scanning calorimetry… Expand