Shape-phase transition in neutron-rich Cr isotopes around N=40 isinvestigated by employing the collective Hamiltonian approach. The inertialfunctions for large-amplitude vibration and rotation are evaluated by the localnormal modes along the axial quadrupole collective coordinate using the Skyrmeand pairing energy density functionals. The time-odd components of the meanfields are fully included in the derived masses. The low-lying spectra obtainedby requantizing the collective Hamiltonian show an excellent agreement with therecent experimental data. Gradual change from spherical to axially deformedshapes in between N=34 and 38 is well described.
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