A model for the fracture behavior of polycrystalline Ni3Al

J. E. Hack; D. J. Srolovitz; S. P. Chen

doi:10.1016/0036-9748(86)90272-3

A model for the fracture behavior of polycrystalline Ni₃Al

J. E. Hack
, D. J. Srolovitz
, S. P. Chen

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

22 Citations (Scopus)

Abstract

In order for grain boundary fracture to occur a) a sharp crack must be stable and b) the critical stress intensity factor for boundary failure must be achieved prior to bulk yielding. The latter is determined by a balance between grain boundary cohesion and yield strength. Employing these considerations, we are able to reconcile the existing experimental data on the fracture behavior of polycrystalline Ni₃Al. A quantitative analysis of the details of this model will be published elsewhere. © 1986.

Original language	English
Pages (from-to)	1699-1704
Journal	Scripta Metallurgica
Volume	20
Issue number	12
DOIs	https://doi.org/10.1016/0036-9748(86)90272-3
Publication status	Published - Dec 1986
Externally published	Yes

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abstract = "In order for grain boundary fracture to occur a) a sharp crack must be stable and b) the critical stress intensity factor for boundary failure must be achieved prior to bulk yielding. The latter is determined by a balance between grain boundary cohesion and yield strength. Employing these considerations, we are able to reconcile the existing experimental data on the fracture behavior of polycrystalline Ni3Al. A quantitative analysis of the details of this model will be published elsewhere. {\textcopyright} 1986.",

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AU - Hack, J. E.

AU - Srolovitz, D. J.

AU - Chen, S. P.

PY - 1986/12

Y1 - 1986/12

N2 - In order for grain boundary fracture to occur a) a sharp crack must be stable and b) the critical stress intensity factor for boundary failure must be achieved prior to bulk yielding. The latter is determined by a balance between grain boundary cohesion and yield strength. Employing these considerations, we are able to reconcile the existing experimental data on the fracture behavior of polycrystalline Ni3Al. A quantitative analysis of the details of this model will be published elsewhere. © 1986.

AB - In order for grain boundary fracture to occur a) a sharp crack must be stable and b) the critical stress intensity factor for boundary failure must be achieved prior to bulk yielding. The latter is determined by a balance between grain boundary cohesion and yield strength. Employing these considerations, we are able to reconcile the existing experimental data on the fracture behavior of polycrystalline Ni3Al. A quantitative analysis of the details of this model will be published elsewhere. © 1986.

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U2 - 10.1016/0036-9748(86)90272-3

DO - 10.1016/0036-9748(86)90272-3

M3 - RGC 21 - Publication in refereed journal

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JO - Scripta Metallurgica

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