NATL INST. OF STAND & TECH R.I.C. A 11 10 55 b M b 5 7 MiST PUBLICATIONS N 1ST I R 6309 Corrosion Fatigue Crack Initiation in Duplex Stainless Steel Paper Making Components M. R. Stoudt U.S. DEPARTMENT OF COMMERCE Technology Administration Metallurgy Division Materials Science and Engineering Laboratory National Institute of Standards and Technology Gaithersburg, MD 20899 Final Report for: NIST CRADA CN-1237 Prepared for: John C. Rogers, Technical Director Sandusky International, Inc. 615 West Market Street P.O. Box 5012 Sandusky, OH 44871-5012 oc NIST 100 .1156 HO. 6309 1999