Researchers reduce 4D printing anisotropy in high entropy shape memory alloy using TiN nanoparticles

Researchers at Shenzhen University and partner institutions showed a way to reduce functional anisotropy in a 4D-printed high-entropy shape memory alloy (HESMA) by adding TiN nanoparticles during laser powder bed fusion (LPBF). Reported in Additive Manufacturing Letters, the study shows that nanoparticle-driven grain refinement lowers both mechanical and shape-memory anisotropy, and that a short heat […]