PSI - Issue 60

481 11

B Shashank Dutt et al. / Procedia Structural Integrity 60 (2024) 471–483 Author name / Structural Integrity Procedia 00 (2019) 000 – 000

Table 7 : Estimated K 1c results of austenitic stainless steel welds tested at 320 °C (Hong et al. 2018)

Weld and aging condition (°C)

Yield strength (MPa)

Ultimate tensile strength (MPa)

Total elongation (%)

Estimated K 1c ( MPa. m 0.5 )

Determined K j1c ( MPa. m 0.5 )

Percentage difference (%)

Estimated Modulus of toughness (MJ.m -3 )

E 308 as weld

300

440

30

215

178

21

111

Aged at 400, 5k h Aged at 400, 10k h E 316 L as weld Aged at 400, 5k h Aged at 400, 10k h E 347 as weld Aged at 400, 5k h Aged at 400, 10k h

305

450

25

199

152

31

94

305

450

20

178

139

28

76

330

440

25

200

240

16

96

360

510

20

191

179

6

87

362

520

18

182

175

4

79

370

480

22

198

262

25

94

520

530

15

181

240

24

79

420

520

17

183

245

26

80

Table 8 : Estimated K 1c results of cast stainless steel welds tested at RT (Yu et al. 2018)

Welding type and location

Yield strength (MPa)

Ultimate tensile strength (MPa)

Total elongation (%)

Estimated K 1c ( MPa.m 0.5 )

Determined K j1c ( MPa. m 0.5 )

Percentage difference (%)

Estimated Modulus of toughness (MJ.m -3 )

GTAW weld

462

590

32

272

350

22

168

Fusion zone of GTAW weld Heat affected zone of GTAW weld SMAW weld Fusion zone of SMAW weld Heat affected zone of SMAW weld

439

563

20

210

266

21

100

440

582

26

239

389

39

130

418

531

35

270

247

9

166

410

559

28

242

197

23

133

420

566

32

263

442

40

158