Table 3 Overview of the total amount of absorbed hydrogen, the amount of hydrogen in the low-temperature desorption peaks (50–475 °C), the amount of hydrogen in high temperature peaks (> 500 °C) and the activation energies obtained for the desorption peaks in the ex-situ charged samples

From: Effect of titanium and vanadium nano-carbide size on hydrogen embrittlement of ferritic steels

HT Condition

 

Total H

Low T peak H

EA

High T peak H

EA

  

[wppm]

[wppm]

[kJ/mol]

[wppm]

[kJ/mol]

TiC

SN

2.62 ± 0.32

2.18 ± 0.28

14 ± 4

0.39 ± 0.01

69 ± 7

     

115 ± 16

VC

LN

1.53 ± 0.17

1.26 ± 0.06

37 ± 3

0.27 ± 0.10

 

SN

2.02 ± 0.03

1.82 ± 0.18

19 ± 5

0.19 ± 0.19

 

LN

0.79 ± 0.04

0.79 ± 0.04

27 ± 8

<0.01