Observations of intergranular stress corrosion cracking in a grain-mapped polycrystal

A. King; G. Johnson; D. Engelberg; W. Ludwig; J. Marrow

doi:10.1126/science.1156211

Observations of intergranular stress corrosion cracking in a grain-mapped polycrystal

A. King, G. Johnson, D. Engelberg, W. Ludwig, J. Marrow

Research output: Contribution to journal › Article › peer-review

Abstract

Nondestructive three-dimensional mapping of grain shape, crystallographic orientation, and grain boundary geometry by diffraction contrast tomography (DCT) provides opportunities for the study of the interaction between intergranular stress corrosion cracking and microstructure. A stress corrosion crack was grown through a volume of sensitized austenitic stainless steel mapped with DCT and observed in situ by synchrotron tomography. Several sensitization-resistant crack-bridging boundaries were identified, and although they have special geometric properties, they are not the twin variant boundaries usually maximized during grain boundary engineering.

Original language	English
Pages (from-to)	382-385
Number of pages	4
Journal	Science
Volume	321
Issue number	5887
DOIs	https://doi.org/10.1126/science.1156211
Publication status	Published - 18 Jul 2008

Keywords

Grain boundaries
Microstructure
Polycrystalline materials
Stress corrosion cracking (observations of intergranular stress corrosion cracking in grain-mapped polycrystal)
stainless steel polycrystal intergranular stress corrosion cracking grain boundary

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title = "Observations of intergranular stress corrosion cracking in a grain-mapped polycrystal",

abstract = "Nondestructive three-dimensional mapping of grain shape, crystallographic orientation, and grain boundary geometry by diffraction contrast tomography (DCT) provides opportunities for the study of the interaction between intergranular stress corrosion cracking and microstructure. A stress corrosion crack was grown through a volume of sensitized austenitic stainless steel mapped with DCT and observed in situ by synchrotron tomography. Several sensitization-resistant crack-bridging boundaries were identified, and although they have special geometric properties, they are not the twin variant boundaries usually maximized during grain boundary engineering.",

keywords = "Grain boundaries, Microstructure, Polycrystalline materials, Stress corrosion cracking (observations of intergranular stress corrosion cracking in grain-mapped polycrystal), stainless steel polycrystal intergranular stress corrosion cracking grain boundary",

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note = "CAN 149:336830 55-10 Ferrous Metals and Alloys Journal 0036-8075 written in English 12597-68-1 (Stainless steel) Role: PRP (Properties) (observations of intergranular stress corrosion cracking in grain-mapped polycrystal)",

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AU - King, A.

AU - Johnson, G.

AU - Engelberg, D.

AU - Ludwig, W.

AU - Marrow, J.

N1 - CAN 149:336830 55-10 Ferrous Metals and Alloys Journal 0036-8075 written in English 12597-68-1 (Stainless steel) Role: PRP (Properties) (observations of intergranular stress corrosion cracking in grain-mapped polycrystal)

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N2 - Nondestructive three-dimensional mapping of grain shape, crystallographic orientation, and grain boundary geometry by diffraction contrast tomography (DCT) provides opportunities for the study of the interaction between intergranular stress corrosion cracking and microstructure. A stress corrosion crack was grown through a volume of sensitized austenitic stainless steel mapped with DCT and observed in situ by synchrotron tomography. Several sensitization-resistant crack-bridging boundaries were identified, and although they have special geometric properties, they are not the twin variant boundaries usually maximized during grain boundary engineering.

AB - Nondestructive three-dimensional mapping of grain shape, crystallographic orientation, and grain boundary geometry by diffraction contrast tomography (DCT) provides opportunities for the study of the interaction between intergranular stress corrosion cracking and microstructure. A stress corrosion crack was grown through a volume of sensitized austenitic stainless steel mapped with DCT and observed in situ by synchrotron tomography. Several sensitization-resistant crack-bridging boundaries were identified, and although they have special geometric properties, they are not the twin variant boundaries usually maximized during grain boundary engineering.

KW - Grain boundaries

KW - Microstructure

KW - Polycrystalline materials

KW - Stress corrosion cracking (observations of intergranular stress corrosion cracking in grain-mapped polycrystal)

KW - stainless steel polycrystal intergranular stress corrosion cracking grain boundary

U2 - 10.1126/science.1156211

DO - 10.1126/science.1156211

M3 - Article

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VL - 321

SP - 382

EP - 385

JO - Science

JF - Science

IS - 5887

ER -

Observations of intergranular stress corrosion cracking in a grain-mapped polycrystal

Abstract

Keywords

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