Overcoming the Damping-Elasticity Paradox via 3D-Printed NiTiSn Nanocomposite.

ABSTRACT: Developing high damping alloys (HDAs) with large elastic strain has attracted growing attention due to the increasing demand for energy absorption with overload reliability and reusability. However, damping capacity inherently conflicts with elasticity, because the former requires a liable movement of crystal defects while the latter opposite. To deal with the damping-elasticity paradox, the advantage of pseudobinary eutectic reaction and rapid cooling of laser powder bed fusion is taken to fabricate a bulk NiTiSn nanocomposite with a two-level hierarchical structure. The first-level architecture is composed of martensitic NiTi nanolamellae and reinforced Ti₃Sn nanolamellae. In addition to lattice strain matching and lamellar boundary strengthening, a novel mechanism of martensi

SUBMITTER: Feng B 

PROVIDER: S-EPMC12412537 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature