A Multianalytical Approach for the Study on Manufacturing Process in Ancient Bronze Coffin From Luristan, Western Iran

Oudbashi, Omid; Hessari, Morteza; Hasanpour, Ata; Shishegar, Arman

doi:10.1520/mpc20160060

Cited by 3 publications

(1 citation statement)

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“…Metallography showed that the coffin has a worked and annealed grain microstructure in which remnants of coring (left over from initial casting) were visible as parallel bands in etched samples. These details demonstrated that the working and annealing process was insufficient to remove all of the initial coring [49]. The corrosion occurring during burial was studied by scanning electron microscopy with energy dispersive analysis of X-rays (SEM-EDS).…”

Section: General Corrosionmentioning

confidence: 99%

Long-Term Embrittlement of Ancient Copper and Silver Alloys

Oudbashi

Wanhill²

2021

Heritage

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The manifestations of ancient metals’ embrittlement, cracking and fracture, are challenging problems for restorers and conservators, yet the scientific understanding of these problems is limited. In particular, the study and interpretation of fracture surfaces, fractography, is a minor or non-existent consideration for most archaeometallurgical investigations. This paper presents a survey of fractographic analyses, in combination with the more widely used disciplines of microstructural studies, metallography, and chemical analyses for some Old-World copper alloy (bronzes) and high-silver alloy artifacts that have undergone long-term corrosion and embrittlement damage. We show that fractography, as an adjunct to metallography, can improve the interpretation of these types of damage and assist in selecting the best methods for restoration and conservation of the objects made from these alloys.

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Section: General Corrosionmentioning

confidence: 99%