Title:
HIGHLY CORROSION-RESISTANT AND HIGH STRENGTH ZR ALLOY
Document Type and Number:
Japanese Patent JPH03207832
Kind Code:
A
Abstract:
PURPOSE: To obtain the high strength Zr alloy excellent in nodular corrosion resistance and mechanical characteristics by incorporating Zr with specified amounts of Sn, Fe, Cr, Ni and O or furthermore with Nb.
CONSTITUTION: Zr is incorporated with, by weight, <3% Sn, <2% Fe, <1% Cr, <2% Ni and <30ppm O; at this time, when the concn. (%) of Sn, Fe, Cr, Ni and O is each expressed by CSn, CFe, CCr, CNi and Co, the quantitative relationship satisfying inequalities (1), (2) and (3) is held among them. Furthermore, <1% Nb is incorporated thereto according to necessary. The Zr alloy excellent in nodular corrosion resistance and workability as well as mechanical characteristics such as tensile strength and ductility can be obtd.
Inventors:
FURUYA TAKEMI
GOTO MASAKAZU
ITAGAKI NOBORU
NOMURA MASAHIRO
KAWAI KIMIHISA
ABE KATSUHIRO
HARADA MAKOTO
GOTO MASAKAZU
ITAGAKI NOBORU
NOMURA MASAHIRO
KAWAI KIMIHISA
ABE KATSUHIRO
HARADA MAKOTO
Application Number:
JP79390A
Publication Date:
September 11, 1991
Filing Date:
January 05, 1990
Export Citation:
Assignee:
NUCLEAR FUEL IND LTD
TOKYO ELECTRIC POWER CO
KOBE STEEL LTD
TOKYO ELECTRIC POWER CO
KOBE STEEL LTD
International Classes:
C22C16/00; (IPC1-7): C22C16/00
Attorney, Agent or Firm:
Ueki Kuichi