Table 4 Macroscopic hydrogen permeation kinetic parameters of TM and TMA steels

From: Interfacial engineering of inclusions for synergistic toughening and hydrogen embrittlement resistance in high-strength pipeline steels

Specimen

L/mm

tL/s

J∞L mol/(cm∙s)

Deff cm2/s

c0 mol/cm3

TM

1.02 ± 0.01

1483 ± 68

1.95 × 10–12 ± 9.36 × 10–14

1.17 × 10–6 ± 6.20 × 10–8

1.67 × 10–6 ± 1.52 × 10–7

TMA

1.03 ± 0.02

2273 ± 116

2.29 × 10–12 ± 1.44 × 10–13

7.78 × 10–7 ± 2.96 × 10–8

2.94 × 10–6 ± 2.48 × 10–7

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