Zn Penetration in Liquid Metal Embrittled TWIP Steel
SCIE
SCOPUS
- Title
- Zn Penetration in Liquid Metal Embrittled TWIP Steel
- Authors
- Kang, H; Cho, L; Lee, C; De Cooman, BC
- Date Issued
- 2016-06
- Publisher
- SPRINGER
- Abstract
- Hot-dip Zn-coated high manganese twinning-induced plasticity (TWIP) steel is sensitive to liquid metal embrittlement (LME). The microstructure of Zn-coated TWIP steel after brittle fracture at 1123 K (850 A degrees C) was investigated. The grain boundaries at the tip of the Zn penetration were analyzed by electron microscopy and atom probe tomography. I"-(Fe,Mn)(3)Zn-10 was found at the tip of the Zn penetration in the TWIP steel, implying that liquid Fe- and Mn-saturated Zn-rich alloy had percolated along the grain boundaries to the tip of the Zn penetration. Evidence for extensive Zn grain boundary diffusion ahead of the Zn-rich alloy percolation path was also observed. Both the Stoloff-Johnson-Westwood-Kamdar model and the Krishtal-Gordon-An model for LME crack formation are compatible with the present in-depth microanalysis of the Zn penetration. (C) The Minerals, Metals & Materials Society and ASM International 2016
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/36418
- DOI
- 10.1007/S11661-016-3475-X
- ISSN
- 1073-5623
- Article Type
- Article
- Citation
- METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, vol. 47A, no. 6, page. 2885 - 2905, 2016-06
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