Abstract
Fire investigators have attempted to study fire behaviors through microstructural examination of molten marks on copper wire. However, there have not been many studies on the metallurgical examination of real-world cases. This research examined the surface morphology and microstructure in the longitudinal section of molten marks on copper wire from various fire scenes to explain how they formed and identify the surrounding materials. The results show that the foreign elements discovered via EDS on the surface of molten marks vary depending on their environment. Molten mark microstructures differed even if they were collected from the same fire scene; a distinct microstructure implies different molten mark formations. Moreover, the presence of residual elements in the microstructure indicates the existence of surrounding materials during formation in a fire. Therefore, microstructural diversity and the presence of residual elements may guide fire investigators in explaining the formation of molten marks and the fire environment for fire investigation.
Funder
The Royal Thai Government scholarship
Subject
General Earth and Planetary Sciences,General Environmental Science
Reference25 articles.
1. Study on Pores Distribution Laws in Secondary Short Circuited Melted Beads of Copper Wires;Wang;Procedia Eng.,2014
2. Study on Discrimination between Primary and Secondary Molten Marks Using Carbonized Residue;Lee;Fire Saf. J.,2002
3. Microstructural Study on Molten Marks of Fire-Causing Copper Wires;Liu;Materials,2015
4. Study on Discrimination between Primary and Secondary Molten Marks by DAS;Lee;Bull. Japan Assoc. Fire Sci. Eng.,2000
5. Microstructural Study on Oxygen Permeated Arc Beads;Liu;J. Nanomater.,2015
Cited by
2 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献