Stress corrosion cracking in ancient silver

Contributor(s):

WANHILL, Russell

Material type: Article

ArticleDescription: 9 pISBN:

0039-3630

Subject(s):

Online resources:

Accés en Línia

In: Studies in Conservation 3 58 1, 41-49Abstract: Six cases of ancient silver embrittlement by corrosion are discussed with respect to evidence for stress corrosion cracking. Both intergranular and transgranular cracking can occur, depending on whether there is retained cold-work in the silver. The severity of cracking is influenced by a combination of factors, including the amount of cold-work in the silver and the burial environment. The burial environment is important for two reasons. Firstly, the soil weight can induce high stresses, particularly in hollow, thin-walled, and incompletely filled-in artefacts. Secondly, grave burials can result in more aggressive soil environments owing to high salinity from body decomposition.

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Item type	Current library	Call number	Status	Notes	Date due	Barcode
Article de revista	Biblioteca de l' Escola Superior Conservació i Restauració de Bens Culturals de Catalunya	Studies in Conservation 3 (Browse shelf(Opens below))	Available	R:2988		Art-415

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Six cases of ancient silver embrittlement by corrosion are discussed with respect to evidence for stress corrosion cracking. Both intergranular and transgranular cracking can occur, depending on whether there is retained cold-work in the silver. The severity of cracking is influenced by a combination of factors, including the amount of cold-work in the silver and the burial environment. The burial environment is important for two reasons. Firstly, the soil weight can induce high stresses, particularly in hollow, thin-walled, and incompletely filled-in artefacts. Secondly, grave burials can result in more aggressive soil environments owing to high salinity from body decomposition.

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