Kai Zweiacker
Kai Zweiacker
Hitachi Energy Ltd.
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Gradient nanostructure and residual stresses induced by Ultrasonic Nano-crystal Surface Modification in 304 austenitic stainless steel for high strength and high ductility
C Ye, A Telang, AS Gill, S Suslov, Y Idell, K Zweiacker, JMK Wiezorek, ...
Materials Science and Engineering: A 613, 274-288, 2014
Combining alloy and process modification for micro-crack mitigation in an additively manufactured Ni-base superalloy
S Griffiths, HG Tabasi, T Ivas, X Maeder, A De Luca, K Zweiacker, ...
Additive Manufacturing 36, 101443, 2020
In situ transmission electron microscopy of crystal growth-mode transitions during rapid solidification of a hypoeutectic Al–Cu alloy
JT McKeown, AK Kulovits, C Liu, K Zweiacker, BW Reed, T LaGrange, ...
Acta Materialia 65, 56-68, 2014
Time-resolved in situ measurements during rapid alloy solidification: Experimental insight for additive manufacturing
JT McKeown, K Zweiacker, C Liu, DR Coughlin, AJ Clarke, JK Baldwin, ...
Jom 68, 985-999, 2016
Composition and automated crystal orientation mapping of rapid solidification products in hypoeutectic Al-4 at.% Cu alloys
KW Zweiacker, C Liu, MA Gordillo, JT McKeown, GH Campbell, ...
Acta Materialia 145, 71-83, 2018
Interface velocity dependent solute trapping and phase selection during rapid solidification of laser melted hypo-eutectic Al-11at.% Cu alloy
V Bathula, C Liu, K Zweiacker, J McKeown, JMK Wiezorek
Acta Materialia 195, 341-357, 2020
Laser powder bed fusion of metal coated copper powders
V Lindström, O Liashenko, K Zweiacker, S Derevianko, V Morozovych, ...
Materials 13 (16), 3493, 2020
Surface tension and viscosity of liquid Pd43Cu27Ni10P20 measured in a levitation device under microgravity
M Mohr, RK Wunderlich, K Zweiacker, S Prades-Rödel, R Sauget, ...
npj Microgravity 5 (1), 4, 2019
Effect of thermo-mechanical processing on sensitization and corrosion in alloy 600 studied by SEM-and TEM-Based diffraction and orientation imaging techniques
A Telang, AS Gill, K Zweiacker, C Liu, JMK Wiezorek, VK Vasudevan
Journal of Nuclear Materials 505, 276-288, 2018
Determination of crystal growth rates during rapid solidification of polycrystalline aluminum by nano-scale spatio-temporal resolution in situ transmission electron microscopy
K Zweiacker, JT McKeown, C Liu, T LaGrange, BW Reed, GH Campbell, ...
Journal of Applied Physics 120 (5), 2016
Lattice tilt and strain mapped by X-ray scanning nanodiffraction in compositionally graded SiGe/Si microcrystals
M Meduňa, F Isa, A Jung, A Marzegalli, M Albani, G Isella, K Zweiacker, ...
Journal of Applied Crystallography 51 (2), 368-385, 2018
Fatigue crack propagation behavior of a micro-bainitic TRIP steel
I Burda, K Zweiacker, A Arabi-Hashemi, P Barriobero-Vila, A Stutz, ...
Materials Science and Engineering: A 840, 142898, 2022
In-situ TEM investigation of rapid solidification of aluminum and aluminum copper alloys
K Zweiacker
University of Pittsburgh, 2015
Composition and crystal orientation mapping of nano-scale multi-phase rapid solidification microstructures in hypo-eutectic Al-Cu alloy thin films
JMK Wiezorek, C Liu, S Farjami, KW Zweiacker, JT Mckeown, ...
Microscopy and Microanalysis 23 (S1), 1078-1079, 2017
Crystal growth mode changes during pulsed laser induced rapid solidification in nanoscale thin films of Al-Cu eutectic
K Zweiacker, C Liu, JT McKeown, T LaGrange, BW Reed, GH Campbell, ...
Microscopy and Microanalysis 20 (S3), 1662-1663, 2014
Quantitative phase analysis of rapid solidification products in Al-Cu alloys by automated crystal orientation mapping in the TEM
KW Zweiacker, MA Gordillo, C Liu, JT McKeown, GH Campbell, ...
Microscopy and Microanalysis 21 (S3), 1465-1466, 2015
Quantitative determination of thermal fields and transformation rates in rapidly solidifying aluminum by numerical modeling and in-situ tem
C Liu, K Zweiacker, JT McKeown, T LaGrange, BW Reed, GH Campbell, ...
Microscopy and Microanalysis 21 (S3), 811-812, 2015
In Situ and Ex Situ Characterization of the Microstructure Formation in Ni-Cr-Si Alloys during Rapid Solidification—Toward Alloy Design for Laser Additive Manufacturing
X Li, K Zweiacker, D Grolimund, D Ferreira Sanchez, AB Spierings, ...
Materials 13 (9), 2192, 2020
Atom Probe Tomography and analytical Scanning Transmission Electron Microscopy of Rapid Solidification Microstructures in Al-Cu Alloy Thin Films
JMK Wiezorek, KW Zweiacker, C Liu, I Martin, TJ Prosa, DJ Larson
Microscopy and Microanalysis 23 (S1), 688-689, 2017
Capturing dynamics of pulsed laser induced melting and rapid solidification in aluminum polycrystals with nanoscale temporal resolution in-situ TEM
JMK Wiezorek, JT McKeown, K Zweiacker, T LaGrange, BW Reed, C Liu, ...
Microscopy and Microanalysis 20 (S3), 1582-1583, 2014
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