PSI - Issue 60

Ganesh Nigudage et al. / Procedia Structural Integrity 60 (2024) 678–689 Ganesh Nigudage / Structural Integrity Procedia 00 (2023) 000 – 000

687

Table 3. Results of Small punch test for Cr-Mo-V RPV steel in different material condition

Specimen thickness

Specimen ID (test temperature) Thermal Base (25 o C) Thermal Base (25 o C) Thermal Weld (25 o C)

Fe proj

Fe int

F h0/10

F 0.1mm

F m

F 0.48mm

F 0.65mm

v m

v f

(h o )

(N)

(N)

(N)

(N)

(N)

(N)

(N)

(mm)

(mm)

0.51

344.4

375.3

466.5

556.7

1824.5

726.30

881.3

1.84

2.09

0.51

320.8

354.2

451.0

544.1

1762.7

711.90

867.8

1.84

2.19

0.51

289.1

309.0

385.2

453.8

1493

572.00

699.90

1.87

2.10

Thermal Weld (25 o C)

0.51

296.0

310.01

381.1

434.9

1527

530.20

670.8

1.90

2.21

Table 4. Percentage error in estimation of tensile properties of thermal base and weld for each correlation for yield strength, tensile strength and total elongation from each correlation.

SPT parameters

Thermal base (25 o C)

Thermal base (-60 o C)

Thermal weld (25 o C)

Thermal weld (-60 o C)

Spn 1 -12.8

Spn 2 -16.2

Spn 1

Spn 2 -11.1 -10.2

Spn 1

Spn 2

Spn 1

Spn 2

F proj

Way 1 Way 2 Way 1 Way 2

-10 -8.5

-2.9 -15 -2.8 -15

-1.6 -13 -2.7 -14

-1.7 -6.3

-3.6 -9.3

-18

-23

F int

-11.7

-14.6

-11.3 -10.5

-10.1

-3.5

-3.5

-16

-20

-8.7

-9

-9

For Yield strength

F ho/10

Way 1 Way 2

-10.4

-12.3

-10.6

-8.8 -6.8

-2.1 -12

-2.7 -13

-1.1 -4.4

-4.2 -9.3

-13

-16

-9.5

F 0.1mm,offset

Way 1 Way 2

-8.8 -10

-10.2

-10.7

-7.6 -5.3

-2.2 -10

-4.8 -14

-1.2

-5.6

-12

-9.9

-4

-10.3

F m (by h o

2 )

Way 1 Way 2

-6 -6

-9 -9

-4.4

-3.2 -2.7

-6 -7

-4 -5

-7.7 -8.3

4.7 4.8

-4

F m

Way 1 Way 2

-27 -28

-30 -30

-6.8 -6.7

-0.8 -0.7

-29 -29

-29 -30

-33.7 -34.2

5.3 5.3

(by h o xv m )

For Tensile strength

F 0.48mm

Way 1 Way 2

-3

-4 -4

8.7

12.9 14.8

-5 -7

-11 -14

-17.4 -18.9

-6.8 -7.6

-2.4

10.3

F 0.65mm

Way 1 Way 2

-3 -3

-4 -5

-9.8 -9.7

-6.2

-6 -7

-9

-18

-8.6

-6

-10

-18.7

-9

v m

Way 1 Way 2

8.6 7.8

9 8

-7.2 -5.8

-6.6

-2.5

3

-11.4 -14.8

-9.6

-6

-1

0.5

-10.2

v m /h o

Way 1 Way 2

5.1 6.1

5.3 6.3

1.3

2.1 0.5

-6 -6

-4 -4

-17.5 -17.9

-10.2 -11.7

For Total elongation

-0.2

(v f -h o )/h o

Way 1 Way 2

7.4 2.7

10.2

-11.1 -15.2

-10.7 -14.4

-6

-3 -3

-17.5 -14.5

-16.8

9.1

-10

-13