Feasibility of using high chromium nickel-base alloys in compliance with criteria of iter first wall material serviceability

M. I. Solonin State Scientific Center of Russian Federation A. A. Bochvar All-Russia Science and Research Institute of Inorganic Materials, 123060, Moscow, Rogov St. 5, Vniinm, BoxA-39, Russia

Yu. I. Kazennov State Scientific Center of Russian Federation A. A. Bochvar All-Russia Science and Research Institute of Inorganic Materials, 123060, Moscow, Rogov St. 5, Vniinm, BoxA-39, Russia

T. A. Krasina State Scientific Center of Russian Federation A. A. Bochvar All-Russia Science and Research Institute of Inorganic Materials, 123060, Moscow, Rogov St. 5, Vniinm, BoxA-39, Russia

S. N. Votinov State Scientific Center of Russian Federation A. A. Bochvar All-Russia Science and Research Institute of Inorganic Materials, 123060, Moscow, Rogov St. 5, Vniinm, BoxA-39, Russia

V. P. Kondrat'ev State Scientific Center of Russian Federation A. A. Bochvar All-Russia Science and Research Institute of Inorganic Materials, 123060, Moscow, Rogov St. 5, Vniinm, BoxA-39, Russia

A. B. Alekseev State Scientific Center of Russian Federation A. A. Bochvar All-Russia Science and Research Institute of Inorganic Materials, 123060, Moscow, Rogov St. 5, Vniinm, BoxA-39, Russia

V. F. Khramtsov State Scientific Center of Russian Federation A. A. Bochvar All-Russia Science and Research Institute of Inorganic Materials, 123060, Moscow, Rogov St. 5, Vniinm, BoxA-39, Russia

V. N. Stepankov State Scientific Center of Russian Federation A. A. Bochvar All-Russia Science and Research Institute of Inorganic Materials, 123060, Moscow, Rogov St. 5, Vniinm, BoxA-39, Russia

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Abstract

The main requirement, showed to properties materials of the first wall ITER, is their high corrosion-radiating resistance in water at temperature 200-350^oC under neutron flux 10-30 dpa. Besides the materials should have high complexes of physical and mechanical properties and to have sufficient adaptability to manufacture and reliability weld connections.

The specified list of main criteria of serviceability limits a circle of materials of a class of corrosion-proof steel–high nickel alloys and reduces them to following: corrosion-proof steel of a type AISI 316, austenitic alloys a type 20 Cr-60 Ni and high chromium nickel base alloys type 40 Cr-60 Ni.

The comparative analysis corrosion, physical and mechanical properties under irradiation austenitic steels, nickel alloys and their weld connections has shown, that in the heaviest degree alloys of a type 40 Cr-60 Ni satisfy to the specified criterion of serviceability.

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Feasibility of using high chromium nickel-base alloys in compliance with criteria of iter first wall material serviceability

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Feasibility of using high chromium nickel-base alloys in compliance with criteria of iter first wall material serviceability

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