Cu-Al-Mn-based shape memory alloy compact having threaded portion and method for producing the same

摘要

PROBLEM TO BE SOLVED: To provide a Cu-Al-Mn-based shape memory alloy compact having a threaded portion which can be formed with good working characteristics and is excellent in fatigue resistance and fracture resistance, and a method for producing the same. A compact having a threaded portion, wherein the threaded portion is a rolled portion, a Cu-Al-Mn-based shape memory alloy compact. A screw that exhibits superelastic properties by subjecting at least a part of a molded body material to plastic molding by rolling in a state where the crystal structure is an A2 type structure, and then subjecting it to heat treatment to change it to an L21 type structure. It can be manufactured by including a step of forming a part. [Selection diagram] Figure 1