Yanhong Chang

TL;DR: It is demonstrated that using cryogenic FIB milling significantly reduces hydrogen pick-up during sample preparation of titanium and titanium alloys, allowing for hydrogen embrittlement mechanisms of Ti-based alloys to be investigated at the nanoscale.

TL;DR: In this article, the authors used atom probe tomography and electron microscopy to investigate the hydrogen distribution in a set of specimens of commercially pure Ti, model and commercial Ti-alloys, and showed formation of Ti-hydrides along α grain boundaries and α/β phase boundaries in commercial pure Ti and α+β binary model alloys.

TL;DR: It is shown that surface oxidation can be effectively suppressed using an entirely cryogenic protocol (during specimen preparation and during transfer) and that the nanostructure of other normally-liquid or soft materials may be able to be measured.

TL;DR: In this paper, the authors explore at the micron scale the deformation mechanisms operating both in standard and harmonic-structured β-Ti-25Nb-25Zr alloys using transmission electron microscopy (TEM).

TL;DR: In this paper, the authors used atom probe tomography (APT) analysis of hydrogen in zirconium alloy systems that are important for nuclear power applications, and discussed possible ways to ensure that appropriate information is extracted from APT analysis.