Influence of Smoke on Metallographic Structure of Short Circuited Melted Mark
When fire breaks out,the gas composition and concentration as well as smoke concentration of burning part vary from those in normal environment.The gas and smoke absorbed during solidification of short circuited melted mark occurred in such environment will certainly have an effect on grain shape,grain size,holes distribution and impurity element distribution of organization of melted mark.The gas in the environment has a certain influence on the organization of short circuited melted mark,but the influence is smaller than that of smoke.The reason may be that the gas is mingled with certain amount of tiny smoke particles inevitably which play a role in the solidification of melted mark.Compared with short-circuit samples in normal atmosphere,carbon content of short-circuit samples increases and oxygen content decreases in the environment of smoke.
Fire Smoke Short circuit Melted mark Metallographic phase Holes
Lian Tie Wang Wei Gao
Shenyang Fire Research Institute,Shenyang,China 110034 Key Laboratory of Fire Scene Investigation and Evidence Identification,Ministry of Public Security,S
国际会议
广州
英文
945-948
2012-11-16（万方平台首次上网日期，不代表论文的发表时间）