Table 2 The variation range and step size of alloying elements.

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

Composition

Sn

Ag

Cu

Bi

Zn

Sb

In

Ti

Ni

Al

Subspace 1

Bal.

3.8

0.7

0–5.5

0–0.6

0–5.5

0–5.5

0–0.8

0–0.9

0–0.9

Subspace 2

Bal.

3.8

0.7

0–5.5

0–1.2

0–5.5

0–5.5

0–0.8

0–0.9

0–0.9

Subspace 3

Bal.

3.8

0.7

0–3

0–0.8

0–3

0–1.5

0–0.2

0–0.5

--

Step size(wt. %)

--

--

--

0.5

0.2

0.5

0.5

0.1

0.1

0.1

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