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Located in Pujiang, Chengdu, China, more than four hundred artifacts were unearthed during the excavation of the Warring States (the Warring States period lasts from 475 to 221 BC) ship-shaped graves in 2016. The compositional and metallurgical feature of the unearthed vessels are still unclear. Archaeologists and conservators are puzzled by such problems that need to be answered by systematic scientific studies. Fifty one samples, either from the matrix (26 samples), or from the corrosion part (25 samples) of 25 unearthed bronze vessels, were carefully collected from the fallen part of the bronze vessels for analysis. Technical methods, such as OM, SEM-EDS, XRD and Raman Spectroscopy were adopted for compositional and metallurgical characterization of the bronzes, as well as identification of the corrosion products. The bronzes are Cu–Sn–Pb trinary alloys with typical casting microstructure. The proportion of Sn are in accordance with excavated bronze vessels in surrounding areas. Recycling isn't involved with the production of such vessels. Layered structure of the corrosion products was observed. Different corrosion products were identified as Cu2CO3(OH)2, Cu2O, CuSO4·5H2O SnO2, PbSO4 and PbCO3. The findings help us gain insights into the bronze manufacturing in Bashu district, as well as the corrosion behavior in certain condition. [ABSTRACT FROM AUTHOR]

Correction to: Metallurgical and corrosion characterization of warring states period bronzes excavated from Pujiang, Chengdu, China Liu Liu and Qing Zhong contributed equally to this work Correction to: Heritage Science (2022) 10:36 https://doi.org/10.1186/s40494-022-00674-w Following publication of the original article [[1]], it was reported that Junchang Yang had erroneously been assigned affiliations 1, 2 and 6. Furthermore, affiliation 4 has been updated from 'Conservation Science Laboratory, Department of History, College of Humanities, Xiamen University, Xiamen 361005, China' to 'Research and Practice Base of Conservation Science and Engineering, Department of History, College of Humanities, Xiamen University, Xiamen 361005, China'. [Extracted from the article]