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Investigating the oxidation behavior of carbon steel in fire scene: a new method for fire investigations
Hong, Hao1; Xie, Dongbai2; Duo, Shuwang1; Wang, Wen3
Corresponding AuthorDuo, Shuwang(swduo@imr.ac.cn)
2020-02-01
Source PublicationSCIENCEASIA
ISSN1513-1874
Volume46Issue:1Pages:59-64
AbstractA major component of fire investigation is tracking the cause of fire, finding of which help to strengthen the physical evidence, especially in case of arson with accelerants. When metallic substances are exposed to fire at high temperature, they undergo oxidation. Accelerants at the fire scene impart some oxidative characteristics on metallic materials. For instance oxides and substrates found on metal surfaces provide valuable information for determining the characteristics of fire, such as exposure temperature, duration and involvement of a liquid accelerant. In this study, we investigated the oxidation behavior of carbon steel at high temperature in a simulated flame environment using ethanol combustion. After oxidation, the morphological and microstructural features of the samples were characterized by observation, scanning probe microscope, X-ray diffractions and scanning electron microscopy with energy-dispersive spectroscopy analysis. The results showed that elemental carbon was deposited on the samples surface, which were ascribed to the incomplete combustion of ethanol. An oxide with a mesh-like pattern appeared on the samples, which was ascribed to the complex oxidation conditions of the fire scene. The properties of the oxides were strongly dependent on the oxidation duration, temperature and atmosphere. These results provide reference information for determining the presence of combustion accelerants at the fire scene.
Keywordfire investigation arson carbon steel ethanol oxidation
Funding OrganizationKey Laboratory of Impression Evidence Examination and Identification Technology, Ministry of Public Security, China ; Open-fund Project of Jiangxi Key Laboratory of Materials Surface Engineering
DOI10.2306/scienceasia1513-1874.2020.005
Indexed BySCI
Language英语
Funding ProjectKey Laboratory of Impression Evidence Examination and Identification Technology, Ministry of Public Security, China[2018121705] ; Open-fund Project of Jiangxi Key Laboratory of Materials Surface Engineering[KFGJ19009]
WOS Research AreaScience & Technology - Other Topics
WOS SubjectMultidisciplinary Sciences
WOS IDWOS:000524910100009
PublisherSCIENCE SOCIETY THAILAND
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/138191
Collection中国科学院金属研究所
Corresponding AuthorDuo, Shuwang
Affiliation1.Jiangxi Sci & Technol Normal Univ, Jiangxi Key Lab Mat Surface Engn, Nanchang 330013, Jiangxi, Peoples R China
2.Nanchang Hangkong Univ, Sch Mat Sci & Engn, Nanchang 330063, Jiangxi, Peoples R China
3.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
Recommended Citation
GB/T 7714
Hong, Hao,Xie, Dongbai,Duo, Shuwang,et al. Investigating the oxidation behavior of carbon steel in fire scene: a new method for fire investigations[J]. SCIENCEASIA,2020,46(1):59-64.
APA Hong, Hao,Xie, Dongbai,Duo, Shuwang,&Wang, Wen.(2020).Investigating the oxidation behavior of carbon steel in fire scene: a new method for fire investigations.SCIENCEASIA,46(1),59-64.
MLA Hong, Hao,et al."Investigating the oxidation behavior of carbon steel in fire scene: a new method for fire investigations".SCIENCEASIA 46.1(2020):59-64.
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