ISIJ International
Online ISSN : 1347-5460
Print ISSN : 0915-1559
ISSN-L : 0915-1559
Regular Article
Effect of Oxygen Concentration on Surface Hot Shortness of Steel Induced by Copper
Yasumitsu KondoHiroshi Tanei
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2015 Volume 55 Issue 5 Pages 1044-1047

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Abstract

Since the Cu content in steel causes hot shortness, it is important to understand the behavior of Cu during high-temperature oxidation in order to control the precipitated Cu. This study examined Cu distribution during the oxidation of steel. The oxidation tests revealed that precipitated Cu existing in the scale/steel interface was absorbed into the Fe3O4 layer or evaporated into the atmosphere as Cu. Then, a method proposed to suppress hot shortness was tested by oxidation-tensile tests at high temperature and the method was proven to be effective.

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© 2015 by The Iron and Steel Institute of Japan
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