Table 1 Composition (in wt.%) of the P91 and 740H wires used for deposition in the WAAM process and the nominal composition (in wt.%) of 90 wt.% P91 alloy

From: Rapid data acquisition and machine learning-assisted composition design of functionally graded alloys via wire arc additive manufacturing

Material

Composition (wt.%)

Al

C

Co

Cr

Cu

Fe

Mn

Mo

Nb

Ni

Ti

Si

V

P91

0.003

0.09

-

9.2

0.03

Bal.

0.45

0.91

0.052

0.4

-

0.26

0.21

740H

1.4

0.03

20.3

24.6

0.02

0.2

0.24

0.5

1.49

Bal.

1.5

0.1

-

90 wt.% P91

0.143

0.084

2.03

10.74

0.029

Bal.

0.429

0.869

0.196

5.322

0.15

0.244

0.189