1. Paul Scherrer Institut 5232 Villigen PSI 2nd High Power Targetry Workshop, Oak Ridge 10-14.10.2005 Y.Dai/1 SINQ Target Irradiation Program SINQ Target Irradiation ProgramSTIP Yong Dai Spallation Neutron Source Division Paul Scherrer Institut, 5232 Villigen PSI, Switzerland 2nd High Power Targetry Workshop Oak Ridge, Oct. 10-14, 2005

2. Paul Scherrer Institut 5232 Villigen PSI 2nd High Power Targetry Workshop, Oak Ridge 10-14.10.2005 Y.Dai/2 Acknowledgement PSI: X. Jia, R. Thermer, D. Hamaguchi, B. Long L. Ni, K. Geissmann, M. Häffeli, H. Heyke F. Groeschel, W. Wagner L. Ni, K. Geissmann, M. Häffeli, H. Heyke F. Groeschel, W. Wagner Hotlab members Hotlab members CEA: J. Henry FZJ: G.S. Bauer, J. Chen, F. Carsughi, H. Ullmaier JAERI: K. Kikuchi LANL: S.A. Maloy, M.R. James ORNL: L.K. Mansur, K. Farrell Others: M.S. Wechsler, W. Lu, Y. Foucher, H. Hou

3. Paul Scherrer Institut 5232 Villigen PSI 2nd High Power Targetry Workshop, Oak Ridge 10-14.10.2005 Y.Dai/3  Introduction Outline  Irradiation  Few results  Outlook

4. Paul Scherrer Institut 5232 Villigen PSI 2nd High Power Targetry Workshop, Oak Ridge 10-14.10.2005 Y.Dai/4 Introduction  SINQ Target Irradiation Program (STIP) was setup by G.S. Bauer in 1996 in Oak Ridge, joined by CEA, FZJ, JAERI, LANL and ORNL to irradiated test samples in SINQ (solid) targets.  Now, the collaboration has been greatly enlarged, including CIAE(ADS),CSNS, CRPP/EPFL (fusion), LWV/PSI (Gen-4), UCSB (fusion).  The goal: -- to establish necessary data base of mechanical properties of different structural and target materials; -- to understand the changes in structural and target materials after irradiation under spallation spectrum in different environments in wide temperature range.

5. Paul Scherrer Institut 5232 Villigen PSI 2nd High Power Targetry Workshop, Oak Ridge 10-14.10.2005 Y.Dai/5 Introduction YearPreparationIrradiationRetrieving / ShippingPIE 1997STIP-I 1998STIP-I 1999STIP-IISTIP-I 2000STIP-IISTIP-I 2001STIP-IIISTIP-IISTIP-I 2002STIP-IIISTIP-IISTIP-I 2003STIP-IVSTIP-IIISTIP-IISTIP-I, -II 2004STIP-IVSTIP-IISTIP-I, -II 2005STIP-VSTIP-IVSTIP-IIISTIP-I, -II Activities up to date

6. Paul Scherrer Institut 5232 Villigen PSI 2nd High Power Targetry Workshop, Oak Ridge 10-14.10.2005 Y.Dai/6 Irradiation

7. Paul Scherrer Institut 5232 Villigen PSI 2nd High Power Targetry Workshop, Oak Ridge 10-14.10.2005 Y.Dai/7 Irradiation

8. Paul Scherrer Institut 5232 Villigen PSI 2nd High Power Targetry Workshop, Oak Ridge 10-14.10.2005 Y.Dai/8 Irradiation

9. Paul Scherrer Institut 5232 Villigen PSI 2nd High Power Targetry Workshop, Oak Ridge 10-14.10.2005 Y.Dai/9 Irradiation STIP-I: More than 1200 samples were irradiated up to 12 dpa / 1100 appm He at <=360°C. STIP-II: More than 2000 samples were irradiated up to 20 dpa / 1800 appm He at <=430°C. STIP-III: About 800 samples were irradiated up to at <=~500°C. STIP-III: About 800 samples were irradiated up to 21.8 dpa / 1950 appm He at <=~500°C. STIP-IV: About 1100 samples are being irradiated up to at <=~600°C. STIP-IV: About 1100 samples are being irradiated up to 20 dpa at <=~600°C.

10. Paul Scherrer Institut 5232 Villigen PSI 2nd High Power Targetry Workshop, Oak Ridge 10-14.10.2005 Y.Dai/10 Irradiation MaterialsTensile T max (°C) Bend/Fracture T max (°C) Fatigue T max (°C) Impact T max (°C) TEM T max (°C) FM steels FM steels ODS 430 450 400 450 400 350 400 450 SS 316L (LN)400300 430 Inconel 718400300 400 W, W-alloys350400 Ta400300 250400 C-C/SiC, SiC/SiC300 Zircaloy-2350300350 Au, Pt400300400 AlMg360 Materials / specimens irradiated up to ~6x10 25 p/m 2 and 9x10 25 n/m 2 (~22 dpa / 2000 appm He in steels) Others: Au, Nb, Cu, Ni, Fe, Ti, Al, discs; Ta-clad-W rods; Graphite samples Pb, PbBi, Hg

11. Paul Scherrer Institut 5232 Villigen PSI 2nd High Power Targetry Workshop, Oak Ridge 10-14.10.2005 Y.Dai/11 Few results Fracture toughness of FM steels irradiated in STIP-I Jia & Dai, IWSMT-7, Thun, 2005, to be published in JNM.

12. Paul Scherrer Institut 5232 Villigen PSI 2nd High Power Targetry Workshop, Oak Ridge 10-14.10.2005 Y.Dai/12 Few results DBTT shift of FM steels irradiated in STIP-I and -II Neutron irradiation data from Klueh et al, J. Nucl. Mater. 218 (1995) 151.

13. Paul Scherrer Institut 5232 Villigen PSI 2nd High Power Targetry Workshop, Oak Ridge 10-14.10.2005 Y.Dai/13 Few results Tensile curves of SA 316F irradiated in STIP-I, - JAERI Saito, et al. JNM 343 (2005) 253.

14. Paul Scherrer Institut 5232 Villigen PSI 2nd High Power Targetry Workshop, Oak Ridge 10-14.10.2005 Y.Dai/14 Few results Tensile curves of AlMg 3 irradiated in STIP-I Dai & Hamaguchi, JNM 343 (2005) 184

15. Paul Scherrer Institut 5232 Villigen PSI 2nd High Power Targetry Workshop, Oak Ridge 10-14.10.2005 Y.Dai/15 Few results TEM observations on microstructure in F82H steel 20.3 dpa, 1790 appm He, T i = 400±50ºC Jia & Dai, IWSMT-7, Thun, 2005, to be published in JNM.

16. Paul Scherrer Institut 5232 Villigen PSI 2nd High Power Targetry Workshop, Oak Ridge 10-14.10.2005 Y.Dai/16 Few results FM steels and SS 316 irradiated in STIP-I Dai et al, JNM 318 (2003) 167

17. Paul Scherrer Institut 5232 Villigen PSI 2nd High Power Targetry Workshop, Oak Ridge 10-14.10.2005 Y.Dai/17 Few results Inspection on STIP-II Pb-Bi Rod Before irradiation After irradiation ( max dose: 19 dpa) Target Rod B: It contains a PbBi (about 38 g) filled T91 capsule. Inside PbBi there are about 50 test samples for studying irradiation assisted corrosion effects of PbBi on different kinds of materials.

18. Paul Scherrer Institut 5232 Villigen PSI 2nd High Power Targetry Workshop, Oak Ridge 10-14.10.2005 Y.Dai/18 Few results Inspection on STIP-II Hg Rod Before irradiation After irradiation ( max dose: 19 dpa) Target Rod A: It contains three Hg (about 19 g in total) filled SS 316 L capsules for studying irradiation assisted corrosion effects of Hg on two kinds of steels. 123 123

19. Paul Scherrer Institut 5232 Villigen PSI 2nd High Power Targetry Workshop, Oak Ridge 10-14.10.2005 Y.Dai/19 Outlook MaterialsTensile T max (°C) Bend/Fracture T max (°C) Fatigue T max (°C) Impact T max (°C) TEM T max (°C) FM steels500 450500 FM steels ODS600 400450 SS 316L (LN)600 Inconel 718600 W800 C-C/SiC, SiC/SiC 700 STIP-V to be irradiated in 2007 and 2008 to ~25 dpa (in steel)

20. Paul Scherrer Institut 5232 Villigen PSI 2nd High Power Targetry Workshop, Oak Ridge 10-14.10.2005 Y.Dai/20 Outlook Foreseen STIP data 100 200 600 500 400 300 0 0 800 700 30201051525 Temperature (°C) Dose (dpa, in steels) 2008

21. Paul Scherrer Institut 5232 Villigen PSI 2nd High Power Targetry Workshop, Oak Ridge 10-14.10.2005 Y.Dai/21 Outlook Foreseen STIP data 100 200 600 500 400 300 0 0 800 700 30201051525 Temperature (°C) Dose (dpa, in steels) 2011 2011