PURPOSE: To obtain the titled inexpensive alloy having superior corrosion resistance and workability by providing a specific composition consisting of Ta, Zr, and Ti.
CONSTITUTION: The corrosion resisting Ti alloy excelling in bendability consists of, by weight, 0.5W10% Ta, 1W7% Zr, and the balance Ti, and, though possessed of the corrosion resistance equal to or superior to the conventional Ti-Ta alloy, it has excellent workability and is far more inexpensive. The reasons for limiting the above alloy composition are as follows: when the amount of Ta is <0.5%, bendability as well as corrosion resistance-improving effect are reduced and when >10%, economization cannot be attained; when the amount of Zr is <1%, bendability-improving effect is not produced and when >7%, corrosion resistance is deteriorated. Further, O2, N2 and the like existing as inevitable impurities should be controlled each to about 0.2% or below.
NISHIKAWA TOMIO
KAJIMURA HARUHIKO
