Metal treatment – Compositions – Heat treating
Patent
1989-03-31
1990-12-25
Dean, R.
Metal treatment
Compositions
Heat treating
148 115N, 148 127N, 148410, 148428, 376277, C22F 110
Patent
active
049799959
ABSTRACT:
A member adapted for use under a stress in an atmosphere of a temperature below the creep temperature and made from an Ni base alloy having a high resistance to stress corrosion cracking. The Ni alloy consists essentially of, by weight, 15 to 25% of Cr, 1 to 8% of Mo, 0.4 to 2% of Al, 0.7 to 3% of Ti, 0.7 to 4.5% of Nb and the balance Ni, and has an austenite matrix in which precipitated is at least one of .gamma.' phase and .gamma." phase. The member can suitably used as parts which are subjected to pure water in nuclear reactor.
Hattori Shigeo
Itow Hisao
Masaoka Isao
Mori Yasuhiko
Sasaki Ryoichi
Dean R.
Hitachi , Ltd.
Hitachi Metals Ltd.
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