Underwater corrosion of metallic heritage artefacts

Angelini, Emma Paola Maria Virginia; Grassini, Sabrina; Tusa, Sebastiano

doi:10.1533/9781782421573.3.236

Cited by 18 publications

(16 citation statements)

References 32 publications

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“…The ecology of underwater heritage can be considered non-trivial and, depending on the environment surrounding the underwater heritage site. It can be divided into 2 lines of research: the ecology of shipwrecks raised from the bottom [13][14][15][16], and the ecology of wrecks located at the place of discovery [11][12], Fig. 2.…”

Section: Resultsmentioning

confidence: 99%

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Problems of underwater cultural heritage research in the context of the Baltic Sea drainage basin ecology

et al. 2021

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The article considers key issues of the underwater cultural heritage and the ways to reveal investigate and preserve it. Due to the lack of knowledge of the problem, the authors have developed a method that allows detecting the potential of the object in order to obtain the status of underwater cultural heritage in the future. These eventual objects are based on the UNESCO World Heritage List. The Baltic Drainage Sea is on the top of this List by the total number of these sites. The authors paid great attention to mark the wreck influence on ecological condition of the sea and they noticed the need of environmental monitoring. As a solution of some issues of preserving underwater cultural heritage. The term “ecology of underwater heritage” was proposed, as well as examples of international cooperation on the integration of environmental and archaeological underwater research.

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Section: Resultsmentioning

confidence: 99%

“…The best example of such world practice is the raising of the Swedish Vasa, lying on the bottom of 333 years, which took about 40 years to preserve and bring to balance, Fig. 3 [13][14][15][16]. But now it is the most visited museum in Scandinavia, which brings large revenues to the state.…”

Section: Fig 2 Unesco Objects As Eventual Underwater Cultural Heritagementioning

confidence: 99%

Problems of underwater cultural heritage research in the context of the Baltic Sea drainage basin ecology

et al. 2021

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“…Velmi nepříznivě na olovo působí znečištění atmosféry těkavými organickými látkami (Volatile Organic Compounds = VOC), případně přímý kontakt olova s materiály organického původu [1,8,[10][11][12][14][15][16][17][18][19][20][21]. Specifický typ atmosféry s VOC je typický pro depozitáře archivů a muzeí.…”

Section: úVodunclassified

Effect of the presence of corrosion products on the corrosion rate of lead during the exposition with paper packaging materials

Strachotová

Kouřil

2018

Koroze a Ochrana Materialu

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High sensitivity of lead to organic compounds leads to degradation of historical lead objects stored in the depositories of museums or archives. High concentration of organic compounds in the atmosphere of depositories is caused by degradation of organic materials (wood, glue, leather, paper). Organic materials are stored together with lead objects or they are used as a packaging material. This study was aimed on the influence of packaging material properties to aggressiveness towards lead with different state of surface by the resistometric method. The results showed that aggressiveness of packaging material is determined by a complex influence of material properties. The presence of corrosion products on the lead surface significantly increases its sensitivity to organic compounds.

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“…A wooden hull structure can collapse if a scour pit is formed around the archaeological remains. It determines the exposure of the archaeological material to the abrasive effect caused by the suspended sediment particles and also produces drastic changes in other environmental variables (i.e., oxygen concentration, benthic communities) governing the deterioration process (Ward et al, 1999;Quinn, 2006;Bethencourt et al, 2018;Gregory, 2020), for example, scour can increase the oxygen concentration that accelerates the microbial degradation process of the wooden remains (Björdal et al, 2000;Björdal and Nilsson, 2008) and increase the corrosion rates of active metals such as copper or iron (Angelini et al, 2013). Scour also controls the composition of the benthic community that affects the conservation of metallic objects (Bethencourt et al, 2018) or the degradation of stone materials (Caḿara et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

Underwater Cultural heritage risk assessment methodology for wave-induced hazards: The showcase of the Bay of Cadiz

Fernández-Montblanc¹,

Bethencourt²,

Izquierdo³

2022

Front. Mar. Sci.

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Coastal areas are characterized by high energetic conditions associated to the wave transformation process and by numerous underwater cultural heritage (UCH) sites whose preservation is crucial given their cultural and economic value. UCH management requires a decision support system to prioritize UCH interventions and actions for long-term preservation. This paper presents a novel UCH risk assessment methodology to quantitatively assess the impact of wave-induced hazards on UCH in coastal environments at a local level and the screening of UCH sites at risk. The UCH risk is calculated as a function of vulnerability (depending on archaeological materials, slope, and seabed type), hazard (decontextualization, scouring, and erosive wear), and exposure computed for the UCH sites registered in an archaeological database. The procedure was validated at two shipwreck sites, Bucentaure and Fougueux, in the Bay of Cadiz. An agreement between the risk index value and the in situ measurements of the rates of scouring and corrosion (used as a proxy of erosive wear) was observed. The methodology was tested in the Bay of Cadiz using an archaeological database containing 56 UCH sites. It allowed identifying the UCH sites at high risk: six are at risk of decontextualization, four are in peril of scouring erosion, and two are at risk of erosive wear. Two UCH sites at high risk of at least two hazards were also identified. This UCH risk assessment methodology is a stepping stone towards a decision support system that will give priority to research, prospection, management, and protection measures in the UCH sites analyzed to ensure their preservation in a context of climate change in the era of a sustainable blue economy.

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Underwater corrosion of metallic heritage artefacts

Cited by 18 publications

References 32 publications

Problems of underwater cultural heritage research in the context of the Baltic Sea drainage basin ecology

Problems of underwater cultural heritage research in the context of the Baltic Sea drainage basin ecology

Effect of the presence of corrosion products on the corrosion rate of lead during the exposition with paper packaging materials

Underwater Cultural heritage risk assessment methodology for wave-induced hazards: The showcase of the Bay of Cadiz

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