3D mapping of dislocation structures upon tensile deformation in (111)-oriented single-crystal nickel exposed to hydrogen environment
收藏ESRF Portal2027-01-01 更新2026-04-23 收录
下载链接：
https://doi.esrf.fr/10.15151/ESRF-ES-1930998609
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资源简介：
Understanding the hydrogen embrittlement (HE) in advanced structural metals is essential for future infrastructures in hydrogen-based energy industries. HE has been long recognized in metals, but it is still not fully understood because H is related to multiple embrittlement phenomena, e.g., from the activation of plastic flow (i.e., dislocation-H interaction) to crack propagation. The change in dislocation behaviors under H influence alters the deformation behavior of metals. Therefore, a systematic characterization of the formation and evolution of dislocation patterns exposed to H environment plays a salient role in understanding HE mechanisms. Thus, this experiment aims to investigate the 3D dislocation structures in single-crystal nickel upon tensile deformation exposed to H environment. Here, we propose to employ ex-situ synchrotron dark-field X-ray microscopy to quantitatively map the strain field of dislocations and to reveal the evolution of the dislocation patterns in 3D.
提供机构：
NTNU, Mechanical and Industrial Engineering, Richard Birkelands vei 2B, 7491 Trondheim, Norway; Delft University of Technology, Dept of Materials Science & Engineering, Mekelweg 2, 2628 Cd Delft, Netherlands
创建时间：
2027-01-01
