140 citations · 204 across the 7 of their papers we have counts for
7 papers
Effect of alloying on the microstructure, phase stability, hardness and partitioning behavior of a new dual-superlattice nickel-based superalloy
C. Rodenkirchen, A. K. Ackerman, P. M. Mignanelli +10
A novel y-y'-y" dual-superlattice superalloy, with promising mechanical properties up to elevated temperatures was recently reported. The present work employs state of the art chem…
Effect of bed temperature on solute segregation and mechanical properties in Ti-6Al-4V produced by selective laser melting
S. Pedrazzini, M. E. Pek, A. K. Ackerman +11
Advanced characterisation techniques were used on LPBF Ti-6Al-4V samples produced on a heated base plate. When the substrate temperature is 100°C the elongation is 6\%, which incre…
4D-STEM elastic stress state characterisation of a TWIP steel nanotwin
T P McAuliffe, A K Ackerman, B H Savitzky +4
We measure the stress state in and around a deformation nanotwin in a twinning-induced plasticity (TWIP) steel. Using four-dimensional scanning transmission electron microscopy (4D…
The Kinetics of Primary Alpha Plate Growth in Titanium Alloys
Abigail K Ackerman, Alexander J. Knowles, Hazel M. Gardner +8
The kinetics of primary alpha-Ti colony/Widmanstatten plate growth from the beta are examined, comparing model to experiment. The plate growth velocity depends sensitively both on…
Interface characteristics in an α+β titanium alloy
Abigail K. Ackerman, Vassili A. Vorontsov, Ioannis Bantounas +6
The alpha/beta interface in Ti-6Al-2Sn-4Zr-6Mo (Ti-6246) is investigated via centre of symmetry analysis, both as-grown and after 10% cold work. Semi-coherent interface steps are o…
Characterizing solute hydrogen and hydrides in pure and alloyed titanium at the atomic scale
Yanhong Chang, Andrew J. Breen, Zahra Tarzimoghadam +16
Ti has a high affinity for hydrogen and is a typical hydride formers. Ti-hydride are brittle phases which probably cause premature failure of Ti-alloys. Here, we used atom probe to…