5 papers · 1 filter
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…