Table 2 Mechanical properties (HER, UTS and TE) with compositions (C, CE, Mn, Si, and Cr) and microstructure features (VF, VB, VM and VTM) of top-optimized steel conditions using TOPSIS analysis.

From: Prediction and optimization of stretch flangeability of advanced high strength steels utilizing machine learning approaches

Rank

TOPSIS Score

HER (%)

UTS (MPa)

TE (wt%)

C (wt%)

CE (wt%)

Mn (wt%)

Si (wt%)

Cr (wt%)

VF (%)

VB (%)

VM (%)

VTM (%)

1

0.4501

119.8

1013.5

22.7

0.12

0.44

1.10

0.15

0.47

12.1

53.2

26.4

8.3

2

0.4486

118.3

1021.5

22.6

0.13

0.41

1.17

0.13

0.42

3.3

70.8

24.2

1.6

3

0.4600

115.7

1010.8

24.2

0.12

0.42

0.74

0.15

0.47

9.7

61.8

26.7

1.8

4

0.4495

114.8

1032.8

22.9

0.12

0.40

0.69

0.10

0.45

2.9

70.9

26.2

0.1

5

0.4433

110.1

1009.5

24.2

0.12

0.44

1.17

0.21

0.46

12.9

52.7

32.0

2.4