Browsing NTNU Open by Author "Lu, Xu"
Now showing items 21-24 of 24
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On the hydrogen embrittlement behavior of nickel-based alloys: Alloys 718 and 725
Lu, Xu; Ma, Yan; Wang, Dong (Peer reviewed; Journal article, 2020)Nickel-based superalloys have attracted immense attention in the oil and gas industry due to their outstanding combination of mechanical properties and corrosion resistance. In corrosive service environment, hydrogen ... -
Probing hydrogen effect on nanomechanical properties of X65 pipeline steel using in-situ electrochemical nanoindentation
Wang, Dong; Hagen, Anette Brocks; Wan, Di; Lu, Xu; Johnsen, Roy (Peer reviewed; Journal article, 2021)The hydrogen effect on a X65 carbon steel was investigated using in-situ electrochemical nanoindentation approach. The alterations in elastic behavior, pop-in load, and hardness under hydrogen-free and hydrogen-charged ... -
Reveal hydrogen behavior at grain boundaries in Fe-22Mn-0.6C TWIP steel via in-situ micropillar compression test
Lu, Xu; Wang, Dong; Wan, Di; Guo, Xiaofei; Johnsen, Roy (Peer reviewed; Journal article, 2022)In this study, the effect of hydrogen on dislocation and twinning behavior along various grain boundaries in a high-manganese twinning-induced plasticity steel was investigated using an in situ micropillar compression test. ... -
Understanding the hydrogen effect on pop-in behavior of an equiatomic high-entropy alloy during in-situ nanoindentation
Wang, Dong; Lu, Xu; Lin, Meichao; Wan, Di; Li, Zhiming; He, Jianying; Johnsen, Roy (Peer reviewed; Journal article, 2021)The variations in the pop-in behavior of an equiatomic CoCrFeMnNi high-entropy alloy under different hydrogen charging/discharging conditions were characterized via in-situ electrochemical nanoindentation. Results show ...