Table 1 Optimal E11 obtained using different methods.

From: An AI-driven microstructure optimization framework for elastic properties of titanium beyond cubic crystal systems

Optimal target

Crystal System

ID

Best-of-∣O D F∣ method

Gradient-based method

Previous ML-based40 method

Proposed AI-driven framework

\({E}_{11}^{min}\)

Cubic

15716

50.2676

50.2676

60.5366

50.2697

Hexagonal

1028

145.2473

145.2473

146.6405

145.2479

1029

134.1967

134.1967

135.3297

134.1969

1030

146.3204

146.3204

147.3352

146.3208

14732

88.9550

88.9550

88.9552

88.9551

14815

134.1967

134.1967

135.3297

134.1970

84837

148.0852

148.0852

149.5147

148.0854

84936

140.5261

140.5261

141.8266

140.5265

\({E}_{11}^{max}\)

Cubic

15716

130.4218

130.9160

127.0722

130.9160

Hexagonal

1028

192.4707

192.4747

176.4714

192.4747

1029

181.6082

181.6254

165.3472

181.6254

1030

199.4137

199.4209

181.0323

199.4209

14732

116.5855

116.5855

106.4076

116.5850

14815

181.6082

181.6254

165.3472

181.6254

84837

197.7685

197.7685

181.1660

197.7682

84936

187.4975

187.5048

171.4899

187.5048