PSI- Issue 9

Ivica Čamagić et al. / Procedia Structural Integrity 9 (2018) 279 – 286 Author name / StructuralIntegrity Procedia 00 (2018) 000–000

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Table 6. Results of tensile testing of new PM specimens Specimen designation Testing temperature,  C

Tensile stress, R m , MPa

Elongation, A, %

Yield stress, R p0,2 , MPa

PM-1-1N PM-1-2N PM-1-3N PM-2-1N PM-2-2N PM-2-3N

342 339 335 251 242 247

513 505 498 323 316 320

27,5 28,3 28,6 29,1 30,8 30,4

20

540

600

600

PM-1-1N 20 o C

PM-2-1N 540 o C

500

500

400

400

300

300

200

200

Stress, R, MPa

Stress, R, MPa

100

100

0

0

0

5

10

15

20

25

3

0

5

10

15

20

25

3

Elongation, A, %

Elongation, A, %

Fig. 3. Stress-elongation diagram for new PM specimen PM-1-1N.

Fig. 4. Stress-elongation diagram for new PM specimen PM-2-1N.

Testing results of WM specimens tested at room temperature of 20  C and working temperature of 540  C are given in tab.7, Čamagić (2013). Typical tensile stress-elongation curve for WM specimen marked as WM-1-1, tested at room temperature is shown in fig.5, Čamagić (2013), and for specimen marked as WM-2-1, tested at working temperature is shown in fig. 6, Čamagić (2013).

Table 7. Results of tensile testing of WM specimens Specimen designation Testing temperature,  C

Tensile strength, R m , MPa

Elongation, A, %

Yield stress, R p0,2 , MPa

WM-1-1 WM-1-2 WM-1-3 WM-2-1 WM-2-2 WM-2-3

518 510 514 331 319 325

611 597 605 419 406 412

20,9 22,7 21,3 26,1 27,3 27,7

20

540