Effect of heat treatment on the microstructure and magnetic properties of as-cast SmCo 5-based alloys

• Local and crystalline structures of as-cast SmCo 5±x alloys subjected to various heat treatments were studied using EXAFS, X-ray diffraction, and metallographic analyses. XRD and EXAFS analyses of SmCo 5-x alloys show the evidence of the Sm-enrichment of the SmCo 5 phase. The behavior of the lattice parameters of SmCo 5 phase in Sm-rich alloys during aging between 1120°C and 700°C can be related to the phase transformation of SmCo 5 into SmCo 5-x phases.

Nyckelord

Coercive force

Crystal structure

Heat treatment

Magnetic materials

Samarium alloys

As-cast

Crystalline structure

EXAFS

Metallographic analysis

XRD

Alloys

Cerium alloys

Magnetic properties

X ray diffraction

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