Influence of Smoke on Metallographic Structure of Short Circuited Melted Mark

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Abstract:

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.

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Periodical:

Advanced Materials Research (Volumes 591-593)

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945-948

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Online since:

November 2012

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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