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Comparison of the hydrogen damage of different rolling surfaces of TC4 Ti alloy sheet.

Authors :
Song, Yingwei
Liu, Xiaozhen
Han, En-Hou
Source :
Corrosion Reviews; Aug2024, Vol. 42 Issue 4, p497-506, 10p
Publication Year :
2024

Abstract

The microstructure of three rolling surfaces of TC4 sheet is different, and their resistance ability to hydrogen damage lacks systematic research. Thus, the hydrogen damage behavior of TC4 rolling sheet was investigated in this paper. The hydrogen diffusion law along different rolling directions and the precipitation of hydrides on different rolling surfaces were compared. It is found that the shape and distribution of α and β phases are changed under the action of extrusion force during the rolling process, and they are arranged in striped shape on the R-N surface along the R direction, and the diffusion of hydrogen along the R direction is faster due to the existence of continuous β phases as hydrogen diffusion channels, resulting in the more serious hydrogen damage. Besides the hydrides mainly deposited at the α and β phase boundaries, the hydrides precipitated in the interior of α phases on the R-N surface are more than that on the R-T surface due to the different distribution state of β phases. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
03346005
Volume :
42
Issue :
4
Database :
Complementary Index
Journal :
Corrosion Reviews
Publication Type :
Academic Journal
Accession number :
178784754
Full Text :
https://doi.org/10.1515/corrrev-2023-0126