This research provided a thorough knowledge of the hydrogen embrittlement in AHSS models based on FeCCrNiB0Si (AHSS1) and FeCCrNiB2Si (AHSS2) alloy systems. The results obtained by electron backscatter diffraction (EBSD) showed the local deformation in the cracked regions. Thermal desorption spectroscopy (TDS) analysis showed despite the higher ratio of irreversible to reversible traps in AHSS2 compared to AHSS1, the susceptibility to HE in AHSS2 was greater than AHSS1 due to the addition of boron and the γ/Cr2B interfaces’ decohesion in the presence of hydrogen. Higher Taylor factor grains in H-charged samples were more likely to suffer plastic instability.
Effect of hydrogen on the microstructure and mechanical properties of FeCCrNiBxSi advanced high strength steels
Norouzi, Ehsan;Vergani, Laura Maria
2024-01-01
Abstract
This research provided a thorough knowledge of the hydrogen embrittlement in AHSS models based on FeCCrNiB0Si (AHSS1) and FeCCrNiB2Si (AHSS2) alloy systems. The results obtained by electron backscatter diffraction (EBSD) showed the local deformation in the cracked regions. Thermal desorption spectroscopy (TDS) analysis showed despite the higher ratio of irreversible to reversible traps in AHSS2 compared to AHSS1, the susceptibility to HE in AHSS2 was greater than AHSS1 due to the addition of boron and the γ/Cr2B interfaces’ decohesion in the presence of hydrogen. Higher Taylor factor grains in H-charged samples were more likely to suffer plastic instability.| File | Dimensione | Formato | |
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