Title:
原子燃料集合体用Zr合金
Document Type and Number:
Japanese Patent JP4718656
Kind Code:
B2
Abstract:
Zr alloy for the nuclear fuel assembly contains Fe, Cr, Sn, Nb. Moreover, Zr alloy for nuclear fuel assembly contains O positively. The ratio of these elements shows an improvement effect in both strength and corrosion resistance. A total amount of Sn and Nb influences strength. It is desirable that the total amount of Sn and Nb is equal to or more than 0.7%. A total amount of Fe and Cr is also important. It is desirable that the total amount is 0.28 to 1.0 weight%. In this way, endurance (strength) is improved, corrosion resistance is improved at the same time and moreover, hydrogen absorption and dimensional stability can be improved.
Inventors:
Suzuki Nemitsu
Toshimichi Takahashi
Soichi Doi
Mitsuteru Sugano
Yasuhide Senda
Toshiya Kido
Toshimichi Takahashi
Soichi Doi
Mitsuteru Sugano
Yasuhide Senda
Toshiya Kido
Application Number:
JP21733899A
Publication Date:
July 06, 2011
Filing Date:
July 30, 1999
Export Citation:
Assignee:
MITSUBISHI HEAVY INDUSTRIES,LTD.
International Classes:
C22C16/00; G21C3/07; G21C3/30
Domestic Patent References:
| JP8068884A | ||||
| JP1306535A |
Attorney, Agent or Firm:
Minoru Kudo