PSI - Issue 60
B Shashank Dutt et al. / Procedia Structural Integrity 60 (2024) 690–699 Author name / StructuralIntegrity Procedia 00 (2019) 000 – 000
697
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Table 5. Tensile properties and estimated K 1c results of P91 steels (Dutt et al. 2011)
Test temperature (°C)
Yield strength (MPa)
Ultimate tensile strength (MPa)
Total elongation (%)
Estimated Modulus of toughness (MJ.m -3 )
Estimated K 1c ( MPa. m 0.5 )
Determined K j1c ( MPa. m 0.5 )
Percentage difference (%)
Room temperature
647
780
12.3
87
187
202
3
380
578
670
11
68
161
156
7
550
457
478
21
98
188
186
1
Table 6. Estimated K 1c results of P91 steels (Thermo-mechanical treated) tested at RT (Samant et al. 2020)
Heat treatment condition (C)
Yield strength (MPa)
Ultimate tensile strength (MPa)
Total elongation (%)
Estimated Modulusof toughness (MJ.m -3 )
Estimated K 1c ( MPa. m 0.5 )
Determined K j1c ( MPa. m 0.5 )
Percentage difference (%)
N 1050 T 750
670
798
21
160
252
303
16
R 1050 T 700
876
1005
18
168
259
282
8
R 550 T 770
928
1061
17
170
260
267
2
Table 7. Estimated K 1c results of P91 steels tested at different temperatures (Stratil et al. 2017)
Test temperature (°C)
Yield strength (MPa)
Ultimate tensile strength (MPa)
Total elongation (%)
Estimated Modulus of toughness (MJ.m -3 )
Estimated K 1c ( MPa. m 0.5 )
Determined K j1c ( MPa. m 0.5 )
Percentage difference (%)
23
590
727
26
170
277
334
17
300
521
625
17
97
206
285
27
400
485
593
18
97
202
256
20
500
458
536
20
99
199
290
31
Table 8. Estimated K 1c results of SA 333 steels tested at different temperatures (Kamat et al.2011)
Test temperature (°C)
Yield strength (MPa)
Ultimate tensile strength (MPa)
Total elongation (%)
Estimated K 1c ( MPa. m 0.5 )
Determined K j1c ( MPa. m 0.5 )
Estimated Modulus of toughness (MJ.m -3 )
Percentage difference (%)
25
306
462
20
183
257
76
28
175
263
423
20
171
267
68
35
250
247
445
21
174
223
72
22
275
236
457
20
169
199
69
14
300
232
445
19
159
179
64
11
350
202
425
22
162
193
68
15
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