Table 2 Chemical composition of the precipitates (unit: wt. %)

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

Precipitate

Nb

C

Ti

1#

50.9

49.1

–

2#

60.5

35.7

3.8

3#

50.1

46.8

3.1

4#

51.2

48.8

–

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