Table 3 Six alloys recommended by Bayesian sampling and experimental results.

From: Divide and conquer: Machine learning accelerated design of lead-free solder alloys with high strength and high ductility

Alloy No.

Composition

UTS (MPa)

Elongation (%)

Y(MPa)

Improvement (%)

S1-POI

\({{\rm{Sn}}}_{94.8}{{\rm{Ag}}}_{3.8}{{\rm{Cu}}}_{0.7}{{\rm{Bi}}}_{0.5}{{\rm{Zn}}}_{0.2}\)

56.57 ± 4.14

31.45 ± 0.99

1779 ± 142

20.31

S1-EI

\({{\rm{Sn}}}_{94.7}{{\rm{Ag}}}_{3.8}{{\rm{Cu}}}_{0.7}{{\rm{Bi}}}_{0.5}{{\rm{Zn}}}_{0.2}{{\rm{Ti}}}_{0.1}\)

52.00 ± 0.96

29.34 ± 2.59

1526 ± 123

3.17

S2-POI

\({{\rm{Sn}}}_{90.8}{{\rm{Ag}}}_{3.8}{{\rm{Cu}}}_{0.7}{{\rm{Bi}}}_{3}{{\rm{In}}}_{1.5}{{\rm{Ti}}}_{0.2}\)

79.68 ± 1.23

21.93 ± 0.50

1747 ± 166

19.28

S2-EI

\({{\rm{Sn}}}_{90.5}{{\rm{Ag}}}_{3.8}{{\rm{Cu}}}_{0.7}{{\rm{Bi}}}_{2.5}{{\rm{In}}}_{1.5}{{\rm{Ti}}}_{0.3}{{\rm{Zn}}}_{0.2}{{\rm{Sb}}}_{0.5}\)

76.68 ± 2.00

19.50 ± 1.83

1495 ± 112

2.07

S3-POI

\({{\rm{Sn}}}_{92.6}{{\rm{Ag}}}_{3.8}{{\rm{Cu}}}_{0.7}{{\rm{Zn}}}_{0.6}{{\rm{Sb}}}_{1.5}{{\rm{In}}}_{0.5}{{\rm{Ti}}}_{0.2}{{\rm{Ni}}}_{0.1}\)

66.04 ± 1.47

24.26 ± 3.33

1602 ± 180

6.92

S3-EI

\({{\rm{Sn}}}_{92.3}{{\rm{Ag}}}_{3.8}{{\rm{Cu}}}_{0.7}{{\rm{Zn}}}_{0.6}{{\rm{Sb}}}_{2}{{\rm{In}}}_{0.5}{{\rm{Ni}}}_{0.1}\)

63.24 ± 3.98

24.00 ± 3.00

1518 ± 158

1.28

  1. Notes: In the Alloy No., the first part of S1, S2 and S3 indicate the search subspaces 1, 2, and 3, respectively; while the second part of POI and EI denote the acquisition functions POI and EI, respectively.
Back to article page