Highlights • Magnetic properties of Ti doped Nd–Ce–Fe–B based alloys are investigated. • The maximum coercivity of 19.5 kOe is obtained in Nd–Ce–Fe–Ti–B alloys. • Fe 2 Ti phase is found precipitated in the grain boundaries. • The precipitations are responsible for the significant coercivity enhancement. Abstract The influences of doping Ti on the phases, microstructures and magnetic properties are systematically investigated in (Nd 0.8 Ce 0.2) 12 Fe 82−x Ti x B 6 melt spun alloys. It is found that Ti could promote the glass forming ability of the studied alloys and increase the stability of the amorphous phase. Significant coercivity enhancement due to Ti doping is observed. The coercivity increases from 9.5 kOe for Ti-free sample to 18.5 kOe with Ti addition of 5 at%, and further reaches to 19.5 kOe when Ti addition rises to 7 at%. The Fe 2 Ti phase is found to precipitate in the 2-14-1 phase grain boundaries investigated by transmission electron microscopy (TEM) and high angle annular dark field (HAADF). With the Ti contents increasing, the precipitated phase becomes larger and more continuous, which is responsible for the huge improvement of the coercivity. [ABSTRACT FROM AUTHOR]