Grain boundary diffusion in a body-centered cubic lattice

Journal Article · 01 March 1955 · Acta Metallurgica

DOI: https://doi.org/10.1016/0001-6160(55)90080-8 · OSTI ID:4360996

Haynes, C. W. ^[1]; Smoluchowski, R. ^[1]

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1. Carnegie Inst. of Technology, Pittsburgh, PA (United States)

Oriented bicrystals of a 3 per cent silicon iron alloy were prepared with a common [011] direction, and were used in a study of intergranular diffusion in the body-centered lattice. The penetration of iron at the grain boundary during diffusion was obtained by an autoradiographic technique. The penetration was found to be orientation dependent, with no preferential grain boundary diffusion being observed for relative angles of disorientation below about 10 degrees. In general the penetration increased up to a disorientation of 86 degrees with a broad minimum in the neighborhood of 50 degrees. The results can be interpreted in terms of the density of atoms of misfit at the grain boundaries although little correlation seems to exist between penetration and grain boundary energy at the cusp positions.

• Research Organization: Carnegie Inst. of Technology, Pittsburgh, PA (United States)
• Sponsoring Organization: US Atomic Energy Commission (AEC)
• Grant/Contract Number: AT-35-1-GEN-359
• NSA Number: NSA-08-006461
• OSTI ID: 4360996
• Report Number(s): NYO-3491
• Journal Information: Acta Metallurgica, Vol. 3, Issue 2; Other Information: Orig. Receipt Date: 31-DEC-54; ISSN 0001-6160
• Publisher: ElsevierCopyright Statement
• Country of Publication: United States
• Language: English