Alloy with large elastic strain over 4%

Elastic alloy with Young's modulus less than 25 GPa which remains in the elastic range even when 600 Mpa stress is applied

Overview

Superelastic alloy can instantly return to its original state after plastic deformation when the force is removed. However, a repeated plastic deformation leaves a residual strain that cannot be ignored.

This invention is about an elastic alloy having a large elastic strain over 4% and Young's modulus less than 25 Gpa, which remains in the elastic range even a stress up to 600 Mpa is applied.

Stress-strain curve

Product Application

There is no residual strain due to wide elastic range. Following applications could be expected:
・Spring
・Structural material
・Connector material

IP Data

IP No.　 ： JP2021-050396
Inventor ： KAINUMA Ryosuke, OMORI Toshihiro, XU Xiao, XU Sheng
keyword ： Material