Bhattacharya, D.
, Cho, L.
, Van der Aa, E.
, Ghassemi-Armaki, H.
, Pichler, A.
, Findley, K.
and Speer, J.
(2020),
Transgranular Cracking in a Liquid Zn Embrittled High Strength Steel, Scripta Materialia, [online], https://doi.org/10.1016/j.scriptamat.2019.09.006, https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=928394
(Accessed December 30, 2024)
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Transgranular Cracking in a Liquid Zn Embrittled High Strength Steel
Published
Author(s)
Diptak Bhattacharya, , Ellen Van der Aa, Hassan Ghassemi-Armaki, Andreas Pichler, Kip O. Findley, John G. Speer
Abstract
Intergranular Zn-assisted liquid metal embrittlement (LME) cracks have been frequently reported in steels, involving austenite grain boundary penetration of liquid Zn at high temperature. In the present study, a Zn-coated high strength steel was deformed at an intercritical temperature; and the characteristics of LME cracking were studied in a mixed microstructure composed of ferrite and austenite at the deformation temperature. Crack propagation was intergranular in austenite; in contrast, the ferrite exhibited both intergranular LME and "transgranular" LME. Trace analysis of the crack orientation was consistent with cracking along 100} cleavage planes.Citation
Scripta Materialia
Volume
175
Pub Type
Journals
Download Paper
Keywords
Liquid metal embrittlement, high strength steel, Zn, intercritical, ferrite, transgranular cracking
Citation
Issues
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Created January 14, 2020, Updated October 12, 2021