Influence of Carbon Segregation to Dislocations on Thermal Desorption Spectrum of Hydrogen in Medium Carbon Martensitic Steels

1) Graduate School of Science and Engineering, Ibaraki University, 4-12-1, Nakanarusawa, Hitachi, 316-8511 Japan.2) Department of Materials Science and Engineering, Ibaraki University, 4-12-1, Nakanarusawa, Hitachi, 316-8511 Japan.3) Kimitsu R & D Lab., Nippon Steel Corporation, 1 Kimitsu, Kimitsu, 299-1141 Japan. Now at Nippon Steel & Sumitomo MetalCorporation. 4) Steel Research Laboratories, Nippon Steel Corporation, 20-1, Shintomi, Futtsu, 293-8511 Japan. Now atNippon Steel & Sumitomo Metal Corporation.(