CRACK PROPAGATION SUPPRESSING MEMBER AND ITS PRODUCTION METHOD

摘要

PROBLEM TO BE SOLVED: To provide a crack propagation suppressing member by which a desired Ti-Ni alloy is sufficiently formed without forming a reaction product with a matrix when high energy is applied, and the propagation of cracks can efficiently be prevented. SOLUTION: In the matrix, a TiNi phase composed of 45 to 65 vol.% Ti, and the balance Ni, and in which Ti and Ni are formed of a fine lamellar structure or an amorphous structure is dispersed in 10 to 50 vol.% of the whole.