7 papers
Hydride growth mechanism in Zircaloy-4: investigation of the partitioning of alloying elements
Isabelle Mouton, Yanhong Chang, Poulami Chakraborty +4
The long-term safety of water-based nuclear reactors relies in part on the reliability of zirconium-based nuclear fuel. Yet the progressive ingress of hydrogen during service makes…
Could face-centered cubic titanium in cold-rolled commercially-pure titanium only be a Ti-hydride?
Yanhong Chang, Siyuan Zhang, Christian H. Liebscher +7
A face-centered cubic (FCC) phase in electro-polished specimens for transmission electron microscopy of commercially pure titanium has sometimes been reported. Here, a combination…
Atomic-scale investigation of hydrogen distribution in a Ti-Mo alloy
Fengkai Yan, Isabelle Mouton, Leigh T. Stephenson +5
Ingress of hydrogen is often linked to catastrophic failure of Ti-alloys. Here, we quantify the hydrogen distribution in fully \b{eta} and α+\b{eta} Ti-Mo alloys by using atom prob…
Quantification challenges for atom probe tomography of hydrogen and deuterium in Zircaloy-4
Isabelle Mouton, Andrew J. Breen, Siyang Wang +8
Analysis and understanding of the role of hydrogen in metals is a significant challenge for the future of materials science, and this is a clear objective of recent work in the ato…
The Laplace project: an integrated suite for correlative atom probe tomography and electron microscopy under cryogenic and UHV conditions
Leigh T. Stephenson, Agnieszka Szczepaniak, Isabelle Mouton +13
We present sample transfer instrumentation and integrated protocols for the preparation and correlative characterization of environmentally-sensitive materials by both atom probe t…
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…