Cyclic Strength and Fatigue Life of Base Metal and Welded Joints of Candidate Steels for ITER Applications
Candidate austenitic steels and welds for load-carrying structures of ITER superconducting magnet systems were studied. The cyclic strength and crack resistance of candidate materials cover a wide range and are determined by their chemical composition and the technology used in their manufacture. Cyclic strength (50 × 104 cycles base) and crack resistance data of 03Cr20Ni16Mn6N and 12Crl8Nil0Ti steels and their welds at 77 and 4.2 K are analyzed. Procedures used to improve the properties of base metal and welded joints are considered.
KeywordsFatigue Crack Base Metal Fatigue Life Fatigue Strength Fatigue Crack Growth
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