Liquid Metal Embrittlement (IMAGE)

Lehigh University

Liquid Metal Embrittlement

Caption

STEM HAADF micrographs show 2 layers of Bi absorbed along the general GBs of a Ni polycrystal quenched from 700°C. (C) Weakly bonded Bi atoms could cause the boundaries to easily fracture between layers and thus embrittle the material. Presumably, decohesion of this GB occurred during TEM specimen preparation. (D) A bilayer interfacial phase of similar character was observed in specimens quenched from 1100°C.

Credit

Martin Harmer, Lehigh University

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