12/23 Seminar Speech

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Speaker: Dr. Yi-Sheng Chen 1, Dr. Peng-Ji Peng 2

Topic: Atom Probe Characterization of Hydrogen in Steels 1, Development on Technology of Steel Structures in Taiwan 2

Date9:10 & 10:30 , 2019.12.23

SpeakerDr. Yi-Sheng Chen 1, Dr. Peng-Ji Peng 2

OrganizationUniversity of Sydney 1Dragon Steel Corporation (DSC) 2

TopicAtom Probe Characterization of Hydrogen in Steels 1, Development on Technology of Steel Structures in Taiwan 2

Date9:10 & 10:30 , 2019.12.23

LocationRoom 203, College of Engineering

Education

University of Oxford / Department of Materials / PhD 1

National Central University / Department of Civil Engineering / PhD 2

Work Experience

University of Sydney / Faculty of Engineering / Fellow 1

Dragon Steel Corporation (DSC) / Utilities Engineering Department / Deputy Director 2

Abstract

Atom probe tomography (APT) is an emerging technique being useful for studying the hydrogen behavior in metals at very fine scale. The advantage of this technique is critical for underpinning our understanding of hydrogen embrittlement and its mitigation in the aspect of materials design. This presentation will begin with the principle of APT, then will describe the technical challenges due to the rapid diffusion of hydrogen in steels and will close by showing the latest development of the cryogenic sample transfer system for addressing the challenges.1

20191223-1

▲ Dr. Yi-Sheng Chen

20191223-2

▲ Dr. Peng-Ji Peng