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8th Pinc Meeting Feb. 5-6, 2007, Proposed CRDM and Bmi Mockups Using Na 2 Nozzle 31 Results
	ML070860287
Person / Time
Site:	North Anna
Issue date:	02/05/2007
From:	Stephen Cumblidge, Doctor S, Schuster G; Battelle Memorial Institute, Pacific Northwest National Laboratory, US Dept of Energy (DOE)
To:	; Office of Nuclear Reactor Regulation
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ML070860236	List: ML070860251; ML070860274; ML070860287; ML070860321;
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	Download: ML070860287 (25)
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Proposed CRDM and BMI Mockups using NA 2 Nozzle 31Results Proposed CRDM and BMI Mockups Proposed CRDM and BMI Mockups using NA 2 Nozzle 31Results using NA 2 Nozzle 31Results 8th PINC Meeting Feb 5-6, 2007 by G. J. Schuster, S.R. Doctor, and S.E. Cumblidge

2 Proposed CRDM and BMI Mockups Presentation Outline Proposed CRDM and BMI Mockups Proposed CRDM and BMI Mockups Presentation Outline Presentation Outline Feb 5-6 2007 Eddy Current Tests z Wetted surface of seal weld Existing Test Blocks z Design drawings z Crack distributions New Test Blocks Crack Types z Comparison to NA 2 Results Schedule

3 Proposed CRDM and BMI Mockups For Use in Eddy Current Tests Proposed CRDM and BMI Mockups Proposed CRDM and BMI Mockups For Use in For Use in Eddy Current Tests Eddy Current Tests Feb 5-6 2007 All cracks in the surface of the Seal Weld or Buttering Manufactured cracks selected to cover realistic eddy current response range.

Eddy current responses from cracks in NA 2 nozzle are now available Response from manufactured cracks are being discussed with vendors

4 Proposed CRDM and BMI Mockups Existing Test Blocks Proposed CRDM and BMI Mockups Proposed CRDM and BMI Mockups Existing Test Blocks Existing Test Blocks Design drawing shows how test block is made Cracks are distributed in the surface of the weld metal Feb 5-6 2007

5 Proposed CRDM and BMI Mockups Existing Test Blocks (cont.)

Proposed CRDM and BMI Mockups Proposed CRDM and BMI Mockups Existing Test Blocks (cont.)

Existing Test Blocks (cont.)

Feb 5-6 2007 Table 3.2 All cracks in the PINC CRDM test blocks Crack Size Range Number of Cracks Available 1-9% through-wall 9

10-30% through-wall 8

31-60% through-wall 10 61-100% through-wall 2

Table 3.3 All cracks in the PINC BMI Test Blocks Crack Size Range Number of Cracks Available 1-9% through-wall 10 10-30% through-wall 9

31-60% through-wall 6

61-100% through-wall 5

6 Proposed CRDM and BMI Mockups New Test Blocks Proposed CRDM and BMI Mockups Proposed CRDM and BMI Mockups New Test Blocks New Test Blocks Feb 5-6 2007 Alloy 182 Coupons (TFC, WSC, SCC)

7 Proposed CRDM and BMI Mockups New Test Blocks Proposed CRDM and BMI Mockups Proposed CRDM and BMI Mockups New Test Blocks New Test Blocks Feb 5-6 2007 Alloy 182 Coupons WNP-1 BMI Nozzle Penetrations WNP-1 CRDM Nozzle Penetrations

8 Proposed CRDM and BMI Mockups Crack Types Proposed CRDM and BMI Mockups Proposed CRDM and BMI Mockups Crack Types Crack Types Feb 5-6 2007 Laboratory grown SCC: available in Alloy 182 coupons only Weld solidification cracks: install in WNP-1 weldments. Realistic responses.

Thermal fatigue cracks: install in WNP-1 weldments. Strong responses. Working with the vendor on this issue.

Reponses Distribution from NA2 nozzle 31 cracks documented for use in manufacturing cracks

9 Proposed CRDM and BMI Mockups Crack Types (Cont.)

Proposed CRDM and BMI Mockups Proposed CRDM and BMI Mockups Crack Types (Cont.)

Crack Types (Cont.)

Feb 5-6 2007

-16

-14

-12

-10

-8

-6

-4

-2 0

1 2

3 4

5 6

7 8

9 Discontinuity number Response (dB to Cal.)

Manufactured cracks NA2 indications EDM notches 0.5 mm notch WSC SCC TFC 1.0 mm notch

10 PWSCC in NA2 Nozzle NDE and DE Report PWSCC in NA2 Nozzle PWSCC in NA2 Nozzle NDE and DE Report NDE and DE Report Feb 5-6, 2007 Visual Testing Completed Penetrant Testing Completed Ultrasonic Testing Completed Eddy Current Completed Sectioning Started

11 Feb 5-6, 2007 NDE of PWSCC in NA2 Nozzle Eddy Current Responses NDE of PWSCC in NA2 NDE of PWSCC in NA2 Nozzle Nozzle Eddy Current Eddy Current Responses Responses Plus point probe 350 KHz Zero degree probe rotation

12 Feb 5-6, 2007 NDE of PWSCC in NA2 Nozzle Eddy Current Responses NDE of PWSCC in NA2 NDE of PWSCC in NA2 Nozzle Nozzle Eddy Current Eddy Current Responses Responses Plus point probe 350 KHz Indication at 200 degrees Confirmed with PT and VT

13 Feb 5-6, 2007 NDE of PWSCC in NA2 Nozzle Eddy Current Responses NDE of PWSCC in NA2 NDE of PWSCC in NA2 Nozzle Nozzle Eddy Current Eddy Current Responses Responses Plus point probe 350 and 150 KHz Indication at 225 degrees Confirmed with PT and VT 8 mm long

14 Feb 5-6, 2007 NDE of PWSCC in NA2 Nozzle Eddy Current Responses NDE of PWSCC in NA2 NDE of PWSCC in NA2 Nozzle Nozzle Eddy Current Eddy Current Responses Responses Plus point probe 350 and 150 KHz Indication at 255 degrees No PT indication

15 Feb 5-6, 2007 NDE of PWSCC in NA2 Nozzle Eddy Current Responses NDE of PWSCC in NA2 NDE of PWSCC in NA2 Nozzle Nozzle Eddy Current Eddy Current Responses Responses Plus point probe 350 KHz No PT indication

16

17 NDE of PWSCC in NA2 Nozzle Visual Testing Images Flaw at 200 Degrees NDE of PWSCC in NA2 Nozzle NDE of PWSCC in NA2 Nozzle Visual Testing Images Visual Testing Images Flaw at 200 Degrees Flaw at 200 Degrees Feb 5-6, 2007 Flaw is approximately 4 mm long

18 Feb 5-6, 2007 NDE of PWSCC in NA2 Nozzle Visual Testing Images Flaw at 225 Degrees NDE of PWSCC in NA2 Nozzle NDE of PWSCC in NA2 Nozzle Visual Testing Images Visual Testing Images Flaw at 225 Degrees Flaw at 225 Degrees Flaw is approximately 4 mm long

19 NDE of PWSCC in NA2 Nozzle Preliminary Sectioning Results NDE of PWSCC in NA2 Nozzle NDE of PWSCC in NA2 Nozzle Preliminary Sectioning Results Preliminary Sectioning Results Feb 5-6, 2007

20 Feb 5-6, 2007 NDE of PWSCC in NA2 Nozzle Preliminary Sectioning Results (cont.)

NDE of PWSCC in NA2 Nozzle NDE of PWSCC in NA2 Nozzle Preliminary Sectioning Results (cont.)