Site Occupation and Structural Phase Transformation of the (010) Antiphase Boundary in Boron-Modified L1(2) Ni3Al, W.Y. Wang, T.T. Zhao, C.X. Zou, H. Kim, S.L. Shang, Y. Wang, S.F. Yang, Q. Feng, X.D. Hui, L.J. Kecskes, J. S. Li, and Z.K. Liu; Journal of Metals, Jun. 2021.
Evolution of Microstructure and Mechanical Properties of Mg-6Al Alloy Processed by Differential Speed Rolling upon Post-Annealing Treatment, H.L. Zhang, Z.G. Xu, S. Yarmolenko, L.J. Kecskes, and J. Sankar; Metals, Vol. 11, Article Number: 926, Jun. 2021.
Adiabatic shear localization of tungsten based heterogeneous multilayer structures; X.X. Chen, J.P. Ligda, B.E. Schuster, L.J. Kecskes, and Q. Wei; Materials Science and Engineering A – Structural Materials Properties Microstructure and Processing, Vol. 801, Article Number: 140393, Jan. 2021.
Tungsten-based heterogeneous multilayer structures via diffusion bonding; X.X. Chen, J.P. J. Shen, L.J. Kecskes, and Q. Wei; International Journal of Refractory Metals and Hard Materials, Vol. 92, Article Number: 105308, Nov. 2020.
High-throughput investigations of configurational-transformation-dominated serrations in CuZr/Cu nanolaminates; W.Y. Wang, B. Gan, D.Y. Lin, J. Wang, Y.G. Wang, B. Tang, H.C. Kou, S.L. Shang, Y. Wang, X.Y. Gao, H.F. Song, X.D. Hui, L.J. Kecskes, Z.H. Xia, K.A. Dahmen, P.K. Liaw, J.S. Li, and Z.K. Liu; Journal of Materials Science and Technology, Vol. 53, pp.192-199, Sept. 2020.
Effect of basal precipitates on extension twinning and pyramidal slip: A micro-mechanical and electron microscopy study of a Mg-Al binary alloy; X.L. Ma, Q. Jiao, L.J. Kecskes, J.A. El-Awady, and T.P. Weihs; Acta Materialia, Vol. 189, pp.35-46, May 2020.
Deformation assisted nucleation of continuous nanoprecipitates in Mg-Al alloys; S.E. Prameela, P. Yi, B. Medeiros, Beatriz, V. Liu, L.J. Kecskes, M.L. Falk, and T.P. Weihs; Materialia, Vol. 9 Article Number: 100583, Mar. 2020.
Solute effects on the Sigma 3 (111)[110] tilt grain boundary in BCC Fe: Grain boundary segregation, stability, and embrittlement; Y.J. Hu, Y. Wang, W.Y. Wang, K.A. Darling, L.J. Kecskes, and Z.K. Liu; Computational Materials Science, Vol. 171, Article Number: 109271, Jan. 2020.
Microstructural characterization of pure Mg and AZ31B processed by ECAE; N.M. Krywopusk, L.J. Kecskes, and T.P. Weihs; Materials Characterization, Vol. 158, Article Number: 109950, Dec. 2019.
Characterization of spalled AZ31B processed by ECAE; N.M. Krywopusk, C.L. Williams, L.J. Kecskes, and T.P. Weihs; Materials Science and Engineering A – Structural Materials Properties Microstructure and Processing, Vol. 767, Article Number: 138298, Nov. 2019.
When a defect is a pathway to improve stability: a case study of the L1(2) Co3TM superlattice intrinsic stacking fault; Y. Zhang, J.S. Li, W.Y. Wang, P.X. Li, B. Tang, J. Wang, H.C. Kou, S.L. Shang, Y. Wang, L.J. Kecskes, X.D. Hui, Q. Feng, and Z.K. Liu; Journal of Materials Science, Vol. 54, pp.13609-13618, Nov. 2019.
Semi-continuous equal-channel angular extrusion and rolling of AA5083 and AZ31 alloys; V. Segal, S.V. Reznikov, N. Murching, V.H. Hammond, and L.J. Kecskes; Metals, Vol. 9, Article Number: 1035, Oct. 2019.
The effect of strain rate on the mechanisms of plastic flow and failure of an ECAE AZ31B magnesium alloy; V. Kannan, X. Ma, N.M. Krywopusk, L.J. Kecskes, T.P. Weihs, and K.T. Ramesh; Journal of Materials Science, Vol. 54, pp.13394-13419, Oct. 2019.
Mechanical properties and failure of ECAE processed Mg97Y2Zn1 at different strain rates; J.G. Li, T. Suo, Y.L. Li, L.J. Kecskes, and Q. Wei; Materials Science and Engineering A – Structural Materials Properties Microstructure and Processing, Vol. 762, Article Number: 138094, Aug. 2019.
Dynamic precipitation and recrystallization in Mg-9wt.%Al during equal-channel angular extrusion: A comparative study to conventional aging; X.L. Ma, S.E. Prameela, P. Yi, M. Fernandez, N.M. Krywopusk, L.J. Kecskes, T. Sano, M.L. Falk, and T.P. Weihs; Acta Materialia, Vol. 172, pp. 185-199, Jun. 2019.
Local lattice distortion mediated formation of stacking faults in Mg alloys; W.Y. Wang, B. Tang, S.L. Shang, J.W. Wang, S.L. Li, Y. Wang, J. Zhu, S.Y. Wei, J. Wang, K.A. Darling, N.M. Mathaudhu, Y.G. Wang, Y. Ren, X.D. Hui, L.J. Kecskes, J.S. Li, and Z.K. Liu; Acta Materialia, Vol. 170, pp. 231-239, May 2019.
First-principles calculations and thermodynamic modelling of long periodic stacking ordered (LPSO) phases in Mg-Al-Gd; H. Kim, A.J. Ross, S.L. Shang, Y. Wang, L.J. Kecskes, and Z.K. Liu; Materialia, Vol. 4, pp.192-202, Dec. 2018.
Elastic properties of long periodic stacking ordered phases in Mg-Gd-Al alloys: A first-principles study; H. Kim, W.Y. Wang, S.L. Shang, L.J. Kecskes, K.A. Darling, and Z.K. Liu; Intermetallics, Vol.98, pp.18-27, Jul. 2018.
A comparative study on the in situ helium irradiation behavior of tungsten: Coarse grain vs. nanocrystalline grain; Z. Chen, L.L. Niu, Z.L. Wang, L.F. Tian, L. Kecskes, K.G. Zhu, and Q.M. Wei; Acta Materialia, Vol.147, pp.100-112, Apr. 2018.
Atomic and electronic basis for solutes strengthened (010) anti-phase boundary of L1(2) Co-3(Al, TM): A comprehensive first-principles study; W.Y. Wang, F. Xue, Y. Zhang, S.L. Shang, Y. Wang, K.A. Darling, L.J. Kecskes, J.S. Li, X.D. Hui, Q. Feng, and Z.K. Liu; Acta Materialia, Vol.145, pp.30-40, Feb. 2018.
Solute-induced solid-solution softening and hardening in bcc tungsten; Y.J. Hu, M.R. Fellinger, B.G. Butler, Y. Wang, K.A. Darling, L.J. Kecskes, D.R. Trinkle, and Z.K. Liu; Acta Materialia, Vol.141, pp.304-316, Dec. 2017.
Spall response and failure mechanisms associated with a hot-extruded AMX6O2 Mg alloy; L. Farbaniec, C.L. Williams, L.J. Kecskes, R. Becker, K.T. Ramesh; Materials Science and Engineering A – Structural Materials Properties Microstructure and Processing, Vol.707, pp.725-731, Nov. 2017.
Revealing the microstates of body-centered-cubic (BCC) equiatomic high entropy alloys; W.Y. Wang, J. Wang, D.Y. Lin, C.X. Zou, Y.D. Wu, Y.J. Hu, S.L. Shang, K.A. Darling, Y.G. Wang, X.D. Wang, X.D. Hui, J.S. Li, L.J. Kecskes, P.K. Liaw, and Z.K. Liu; Journal of Phase Equilibria and Diffusion, Vol.38, pp.404-415, Aug. 2017.
The effect of rolling on the microstructure and compression behavior of AA5083 subjected to large-scale ECAE; J. Shen, J., X. Chen, V.H. Hammond, L.J. Kecskes, S.N. Mathaudhu, K. Kondoh, and Q. Wei; Journal of Alloys and Compounds, Vol.695, pp.3589-3597, Feb. 2017.
Property mapping of friction stir welded Al-2139 T8 plate using site specific shear punch testing, B.C. Hornbuckle, H.A. Murdoch, A.J. Roberts, L.J. Kecskes, M.A. Tschopp, K.J. Doherty, J.H. Yu, and K.A. Darling, KA; Materials Science and Engineering A – Structural Materials Properties Microstructure and Processing; Vol.682, pp.192-201, Jan. 2017.
Atomistic simulations of the effect of embedded hydrogen and helium on the tensile properties of monocrystalline and nanocrystalline tungsten; Z. Chen, L.J. Kecskes, K.G. Zhu, and Q.M. Wei; Journal of Nuclear Materials, Vol.481, pp.190-200, Dec. 2016.
Microstructural effects on the spall properties of ECAE-processed AZ31B magnesium alloy; L. Farbaniec, C.L. Williams, L. Kecskes, K.T. Ramesh, and R. Becker; International Journal of Impact Engineering, Vol. 98, pp.38-41, Dec. 2016.
Microstructure and helium irradiation performance of high purity tungsten processed by cold rolling; Z. Chen, W.J. Han, J.G. Yu, L. Kecskes, K.G. Zhu, and Q.M. Wei; Journal of Nuclear Materials, Vol.479, pp.418-425, Oct. 2016.
Power law scaled hardness of Mn strengthened nanocrystalline Al-Mn non-equilibrium solid solutions; W.Y. Wang, K.A. Darling, Y. Wang, S.L. Shang, L.J. Kecskes, X.D. Hui, and Z.K. Liu; Scripta Materialia, Vol.120, pp.31-36, Jul. 2016.
Residual stress and its effect on the mechanical properties of Y-doped Mg alloy fabricated via back-pressure assisted equal channel angular pressing (ECAP-BP); J.H. Shen, V. Gartnerova, L.J. Kecskes, K. Kondoh, A. Jager, and Q.M. Wei; Materials Science and Engineering A – Structural Materials Properties Microstructure and Processing, Vol.669, pp.110-117, Jul. 2016.
Effects of alloying elements and temperature on the elastic properties of W-based alloys by first-principles calculations; Y.J. Hu, S.L. Shang, Y. Wang, K.A. Darling, B.G. Butler, L.J. Kecskes, and Z.K. Liu; Journal of Alloys and Compounds, Vol.671, pp.267-275, Jun. 2016.
Quasi-static and high-rate mechanical behavior of aluminum-based MMC reinforced with boron carbide of various length scales; N. Behm, H.R. Yang, J.H. Shen, K. Ma, L.J. Kecskes, E.J. Lavernia, J.M. Schoenung, and Q.M. Wei; Materials Science and Engineering A – Structural Materials Properties Microstructure and Processing, Vol.650, pp.305-316, Jan. 2016.
Effect of strain rate on the mechanical properties of magnesium alloy AMX602; J. Shen, K. Kondoh, T.L. Jones, S.N. Mathaudhu, L.J. Kecskes, and Q.M. Wei; Materials Science and Engineering A – Structural Materials Properties Microstructure and Processing, Vol.649, pp.338-348, Jan. 2016.
Effect of Ta Solute Concentration on the Microstructural Evolution in Immiscible Cu-Ta Alloys; B.C. Hornbuckle, T. Rojhirunsakool, M. Rajagopalan, T. Alam, G.P.P. Pun, R. Banerjee, K.N. Solanki, Y. Mishin, L.J. Kecskes, and K.A. Darling, Journal of Metals, Vol.67, pp.2802-2809, Dec. 2015.
Structure and mechanical properties of Fe-Ni-Zr oxide-dispersion-strengthened (ODS) alloys; K.A. Darling, M. Kapoor, H. Kotan, B.C. Hornbuckle, S.D. Walck, G.B. Thompson, M.A. Tschopp, and L.J. Kecskes, Journal of Nuclear Materials, Vol.467, pp.205-213, Part.1, Dec. 2015.
Angular-dependent interatomic potential for the Cu-Ta system and its application to structural stability of nano-crystalline alloys; G.P.P. Pun, K.A. Darling, L.J. Kecskes, and Y. Mishin, Acta Materialia, Vol.100, pp. 377-391, Nov. 2015.
Solid-Solution Hardening in Mg-Gd-TM (TM = Ag, Zn, and Zr) Alloys: An Integrated Density Functional Theory and Electron Work Function Study; W.Y. Wang, S.L. Shang, Y. Wang, H. Kim, K.A. Darling, L.J. Kecskes, S.N. Mathaudhu, X.D. Hui, and Z.K. Liu, Journal of Metals, Vol.10, pp.2433-2441, Oct. 2015.
Anomalous Structural Dynamics in Liquid Al80Cu20: An ab initio Molecular Dynamics Study; W.Y. Wang, J.J. Han, H.Z. Fang, J. Wang, Y.F. Liang, S.L. Shang, Y. Wang, X.J. Liu, L.J. Kecskes, S.N. Mathaudhu, X. Hui, and Z.K. Liu; Acta Materialia, Vol.97, pp.75-85, Sept. 2015.
Lattice Distortion Induced Anomalous Ferromagnetism and Electronic Structure in FCC Fe and Fe-TM (TM = Cr, Ni, Ta and Zr) Alloys; W.Y. Wang, S.L. Shang, Y. Wang, Y.J. Hu, K.A. Darling, L.J. Kecskes, S.N. Mathaudhu, X.D. Hui, and Z.K. Liu; Materials Chemistry and Physics, Vol.162, pp.748-756, Jul. 2015.
Nano-Sized Superlattice Clusters Created by Oxygen Ordering in Mechanically Alloyed Fe Alloys; Y.J. Hu, J. Li, K.A. Darling, W.Y. Wang, B.K. VanLeeuwen, X.L. Liu, L.J. Kecskes, E.C. Dickey, and Z.K. Liu; Scientific Reports, Vol.5, Article Number: 11772, Jul. 2015.
Mechanical Properties of a High Strength Cu-Ta Composite at Elevated Temperature; K.A. Darling, E.L. Huskins, B.E. Schuster, Q. Wei, and L.J. Kecskes; Materials Science and Engineering A – Structural Materials Properties Microstructure and Processing, Vol.638, pp.322-328, Jun. 2015.
Structure and Thermal Decomposition of a Nanocrystalline Mechanically Alloyed Supersaturated Cu-Ta Solid Solution; T. Rojhirunsakool, K.A. Darling, M.A. Tschopp, G.P.P. Pun, Y. Mishin, R. Banerjee, and L.J. Kecskes; Materials Research Society Communications, Vol.5, No.2, pp.333-339, Jun. 2015.
Mechanical Behavior of Ultrafine Gradient Grain Structures Produced via Ambient and Cryogenic Surface Mechanical Attrition Treatment in Iron; H.A. Murdoch, K.A. Darling, A.J. Roberts, and L.J. Kecskes; Metals, Vol.5, No.2, pp.976-985, Jun. 2015.
Mechanical Behavior of a Lanthanum-Doped Magnesium Alloy at Different Strain Rates; J. Shen, W. Yin, K. Kondoh, T.L. Jones, L.J. Kecskes, S.N. Yarmolenko, and Q. Wei; Materials Science and Engineering A – Structural Materials Properties Microstructure and Processing, Vol.626, pp.108-121, Feb. 2015.
Scratch Induced Deformation Behavior of Hafnium Based Bulk Metallic Glass at Multiple Load Scales; D. Lahiri, J. Karp, A.K. Keshri, C. Zhang, G.S. Dulikravich, L.J. Kecskes, and A. Agarwal; Journal of Non-Crystalline Solids, Vol.410, pp.118-126, Feb. 2015.
Mach Conference, Apr 6-9, 2021, Virtual
Poster: Spall Failure of Mg-6Al via Laser-Driven Micro-Flyer Impact Experiments; Christopher DiMarco, Debjoy Mallick, Chengyun Miao, Laszlo Kecskes, Tim Weihs, and K.T. Ramesh; Johns Hopkins University
Poster: Thermomechanical Processing of Dilute Mg-Zn-Ca Alloys; Jenna Krynicki1, Laszlo Kecskes1, John Gibbins1, and Timothy P. Weihs; Honglin Zhang2 and Zhigang Xu2; 1Johns Hopkins University; 2North Carolina A&T State University
TMS 2021, March 15-18, Virtual
Deformation Induced Precipitation (DIP): A Cohesive Processing Strategy to Strengthen Magnesium Alloys; Suhas Eswarappa Prameela, Peng Yi, Laszlo Kecskes, Michael Falk, and Timothy Weihs; Johns Hopkins University
Deformation Induced Precipitation (DIP) in Light Alloys – Theory and Experiments; Suhas Eswarappa Prameela1, Peng Yi1, Yannick Hollenweger2, Laszlo Kecskes1, Dennis Kochmann2, Michael Falk1, and Timothy Weihs1; 1Johns Hopkins University; 2ETH Zurich
Thermomechanical Processing of Dilute Mg-Zn-Ca Alloys; Jenna Krynicki1, Laszlo Kecskes1, John Gibbins1, Zhigang Xu2, and Timothy Weihs1; 1Johns Hopkins University; 2North Carolina A&T State University
Poster: Effect of Annealing on Microstructure and Hardness of Mg-9Al Alloy Plates Processed by Single-pass Differential Speed Rolling; Honglin Zhang1, Zhigang Xu1, Sergey Yarmolenko1, Qiuming Wei2, Laszlo Kecskes3, and Jagannathan Sankar1; 1North Carolina A&T State University; 2University of North Carolina at Charlotte; 3Johns Hopkins University
TMS 2020, February 23-27, 2020, San Diego, CA
Effect of Second Phase Particle Size on the Recrystallized Microstructure of Mg-Al Alloys Following ECAE Processing: Suhas Eswarappa Prameela, Peng Yi, Vance Liu, Beatriz Medeiros, Laszlo Kecskes, Michael Falk, and Timothy Weihs; Johns Hopkins University
Poster F-39: Effect of Annealing on Microstructure and Mechanical Properties of Mg-6Al Alloy Plates Processed by Differential Speed Rolling; Honglin Zhang1, Zhigang Xu1, Sergey Yarmolenko1, Laszlo Kecskes2, Qiuming Wei3, and Jagannathan Sankar1; 1North Carolina A&T State University; 2Johns Hopkins University; 3UNCC
Poster F-46: Improvement of Mechanical Properties of Mg Alloys Through Confined Rolling; Pavitra Krishnan1, Zhigang Xu2, Sergey Yarmolenko2, Jagannathan Sankar2, Laszlo Kecskes3, and Qiuming Wei1; 1University of North Carolina at Charlotte; 2North Carolina A&T State University; 3HEMI, Johns Hopkins University
Poster F-61: Thermomechanical Processing of Dilute Mg-Zn-Ca Alloys; Jenna Krynicki1, Laszlo Kecskes1, Suhas Eswarappa Prameela1, Zhigang Xu2, and Timothy Weihs1; 1Johns Hopkins University; 2North Carolina A&T State University
MS&T 2019, September 29 – October 3, 2019, Portland OR
A Study of Improvement of Mechanical Properties of Magnesium Alloys through Rolling Confinement; Pavitra Krishnan1, Zhigang Xu2, Sergey Yarmolenko2, Jagannathan Sankar2, Laszlo Kecskes3, and Qiuming Wei1; 1University of North Carolina Charlotte; 2NC. A&T State University; 3HEMI, Johns Hopkins University
Compressive Behavior of Accumulative Roll Bonded Mg/Al Alloys under Confinement; Pavitra Krishnan1, Zhigang Xu2, Sergey Yarmolenko2, Jagannathan Sankar2, Laszlo Kecskes3, and Qiuming Wei1; 1University of North Carolina Charlotte; 2NC A&T University; 3HEMI, Johns Hopkins University
Nanocrystalline high temperature machine parts; K.A. Darling, S.M. Grendahl, L.J. Kecskes. K.N. Solanki, H.A. Murdoch, T.L. Luckenbaugh, A.J. Roberts, and B.C. Hornbuckle; Patent 10,851,440; December 1, 2020.
Extreme creep resistant nano-crystalline metallic materials; L.J. Kecskes, K.A. Darling, R.S. Mishra, Y. Mishin, K.N. Solanki, and M. Rajagopalan; Patent 10,766, 071; September 8, 2020.
High-Density Thermodynamically Stable Nanostructured Copper-Based Metallic Systems, Methods of Making the Same; L.J. Kecskes, M.J. Gallagher, A.J. Roberts, K.A. Darling, and B.G. Butler; Patent 10,487,375; November 26, 2019.
High-Density Thermodynamically Stable Nanostructured Copper-Based Metallic Systems, Methods of Making the Same; L.J. Kecskes, M.J. Gallagher, A.J. Roberts, and K.A. Darling; Patent 9,822,430; November 21, 2017.
Apparatus for Safely Depressurizing High Energy Mechanical Alloying SPEX Milling Vials; K.A. Darling, M.J. Gallagher, A.J. Roberts, and L.J. Kecskes; Patent 9,387,535; July 12, 2016.
Binary or Higher Order High-Density Thermodynamically Stable Nanostructured Copper-Tantalum Metallic Systems, Their Derivatives, and Methods of Making the Same; L.J. Kecskes, K.A. Darling, and B.G. Butler; Patent 9,333,558; May 10, 2016.
High-Density Hafnium-Based Metallic Glass That Include Six or More Elements; L. J. Kecskes, B. T. Edwards, and R. H. Woodman; Patent 8,163,109; April 24, 2012.
High-Density Bulk Metallic Glass; L. J. Kecskes, B. T. Edwards, and R. H. Woodman; Patent 7,645,350; January 12, 2010.
High-Density Metallic-Glass-Alloys, Their Composite Derivatives and Methods for Making the Same; T. Zahrah, L. J. Kecskes, and R. Rowland; Patent 7,361,239, April 22, 2008.
Recovery Apparatus for Fragmented Ballistic Materials and Method for Collection of the Same; L. J. Kecskes and L. S. Magness; Patent 7,163,205, January 16, 2007.
Alloy and Method of Producing the Same; T. C. Hufnagel, R. T. Ott, C. Fan, and L. J. Kecskes; Patent 6,918,973; July 19, 2005.
Refractory Metal and Alloy Fabrication by a Hot Explosive Compaction; L. J. Kecskes; Patent 5,996,385, December 7, 1999.
Refractory Metal and Alloy Fabrication by a Hot Explosive Compaction; L. J. Kecskes; Patent 5,826,160, October 20, 1998.