PSI - Issue 2_B

Ryuichiro Ebara / Procedia Structural Integrity 2 (2016) 517–524 Author name / Structural Integrity Procedia 00 (2016) 000 – 000

519

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Table2. Mechanical properties of austenitic stainless steels. (Ebara 2015) Material 0.2%Proofstress MPa

Ultimate tensile strength Elongation Hardness MPa % HB

SUS304

274 442 269 375 711 365

653 766 590 745

61 50 63

156 213 136 177 261 175

SUS304N2

SUS316 NSSC250(Heat) NSSC250(TMCP) YUS270

56

905 743

38 44

450

Air 3 ％ NaCl

400

SUS304 SUS316

350

300

250

200

Stress amplitude,MPa

150

10 4

10 5

10 6

10 7

10 8

10 9

10 10

Number of cycle to failure

Fig.1 S-N diagrams of SUS304 and SUS316 in air and in 3%NaCl aqueous solution. (Ebara et al.,2011)

450

Air 3%NaCl

400

350

300

Stress amplitude,MPa

250

10 4

10 5

10 6

10 7

10 8

10 9 10 10

Number of cycles to failure

Fig.2 S-N diagrams of YUS270 in air and in 3%NaCl aqueous solution. (Ebara et al.,2012)