- Title
- Hydrogen-induced delayed fracture of a 1180 MPa martensitic advanced high-strength steel under U-bend loading
- Creator
- Li, Huixing; Venezuela, Jeffrey; Zhou, Qingjun; Luzin, Vladimir; Yan, Ming; Shi, Zhiming; Knibbe, Ruth; Zhang, Mingxing; Dong, Futao; Dargusch, Matthew S.; Atrens, Andrej
- Relation
- Materials Today Communications Vol. 26, Issue March 2021, no. 101887
- Publisher Link
- http://dx.doi.org/10.1016/j.mtcomm.2020.101887
- Publisher
- Elsevier
- Resource Type
- journal article
- Date
- 2021
- Description
- Hydrogen-induced delayed failure (HIDF) of an 1180 MPa martensitic advanced high-strength steel (MS-AHSS) was studied using U-bend tests. HIDF susceptibility was increased by increasing stress, plastic strain and hydrogen content. Fracture initiated in the region of high tensile stress at the apex of the U-bend specimen. Hydrogen-induced fracture propagated in two stages, coinciding with the two stress regions of the specimen. The hydrogen content of the U-bend specimen increased with plastic strain and hydrogen fugacity. Delayed fracture is possible for specimens (and components) that contain substantial damage due to plastic strain and are subjected to a substantial stress.
- Subject
- advanced high-strength steel; martensite; hydrogen embrittlement; U-bend test
- Identifier
- http://hdl.handle.net/1959.13/1433382
- Identifier
- uon:39236
- Identifier
- ISSN:2352-4928
- Language
- eng
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