CREEP RUPTURE PROPERTIES OF Ni-Cr-W ALLOYS FOR NUCLEAR STEEL MAKING IN HELIUM AND REDUCING GAS ATMOSPHERES.

Tatsuhiko Tanabe; Tatsuo Shikama; Yoshikazu Sakai; Masakazu Fujitsuka; Hiroshi Araki; Heitaro Yoshida; Ryoji Watanabe

CREEP RUPTURE PROPERTIES OF Ni-Cr-W ALLOYS FOR NUCLEAR STEEL MAKING IN HELIUM AND REDUCING GAS ATMOSPHERES.

Tatsuhiko Tanabe, Tatsuo Shikama, Yoshikazu Sakai, Masakazu Fujitsuka, Hiroshi Araki, Heitaro Yoshida, Ryoji Watanabe

Institute for Materials Research (IMR)

Research output: Contribution to journal › Article › peer-review

Abstract

Creep rupture properties of Ni-Cr-W alloys developed for nuclear steelmaking, which precipitate alpha -W, were investigated in the temperature range from 900 degree C to 1050 degree C in He environment (He-2) which simulates the primary coolant of High Temperature Gas Cooled Reactor (HTGR), and at 900 degree C in reducing gas environment which is to be used when direct steelmaking system is connected with the primary system of the HTGR. The results were discussed in terms of environmental factors such as carburization, decarburization and oxidation. It was found that the two alloys have the possibility to satisfy the target of R & D, that is, 'the alloy should have the 50,000 hr rupture strength of more than 1 kg/mm**2'.

Original language	English
Pages (from-to)	246-253
Number of pages	8
Journal	Transactions of National Research Institute for Metals (Tokyo)
Volume	27
Issue number	4
Publication status	Published - 1985 Dec 1

ASJC Scopus subject areas

Engineering(all)

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CREEP RUPTURE PROPERTIES OF Ni-Cr-W ALLOYS FOR NUCLEAR STEEL MAKING IN HELIUM AND REDUCING GAS ATMOSPHERES. / Tanabe, Tatsuhiko; Shikama, Tatsuo; Sakai, Yoshikazu; Fujitsuka, Masakazu; Araki, Hiroshi; Yoshida, Heitaro; Watanabe, Ryoji.

In: Transactions of National Research Institute for Metals (Tokyo), Vol. 27, No. 4, 01.12.1985, p. 246-253.

Research output: Contribution to journal › Article › peer-review

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abstract = "Creep rupture properties of Ni-Cr-W alloys developed for nuclear steelmaking, which precipitate alpha -W, were investigated in the temperature range from 900 degree C to 1050 degree C in He environment (He-2) which simulates the primary coolant of High Temperature Gas Cooled Reactor (HTGR), and at 900 degree C in reducing gas environment which is to be used when direct steelmaking system is connected with the primary system of the HTGR. The results were discussed in terms of environmental factors such as carburization, decarburization and oxidation. It was found that the two alloys have the possibility to satisfy the target of R & D, that is, 'the alloy should have the 50,000 hr rupture strength of more than 1 kg/mm**2'.",

author = "Tatsuhiko Tanabe and Tatsuo Shikama and Yoshikazu Sakai and Masakazu Fujitsuka and Hiroshi Araki and Heitaro Yoshida and Ryoji Watanabe",

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AU - Tanabe, Tatsuhiko

AU - Shikama, Tatsuo

AU - Sakai, Yoshikazu

AU - Fujitsuka, Masakazu

AU - Araki, Hiroshi

AU - Yoshida, Heitaro

AU - Watanabe, Ryoji

PY - 1985/12/1

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N2 - Creep rupture properties of Ni-Cr-W alloys developed for nuclear steelmaking, which precipitate alpha -W, were investigated in the temperature range from 900 degree C to 1050 degree C in He environment (He-2) which simulates the primary coolant of High Temperature Gas Cooled Reactor (HTGR), and at 900 degree C in reducing gas environment which is to be used when direct steelmaking system is connected with the primary system of the HTGR. The results were discussed in terms of environmental factors such as carburization, decarburization and oxidation. It was found that the two alloys have the possibility to satisfy the target of R & D, that is, 'the alloy should have the 50,000 hr rupture strength of more than 1 kg/mm**2'.

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