Suppression of Surface Hot Shortness Caused by Copper during Hot Rolling

Abstract:

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Since copper content in steel causes hot shortness, it is important to understand copper behaviour during high-temperature oxidation, in order to control the precipitated copper. This study examines copper distribution during the oxidation of steel. From the oxidation tests, it is shown that precipitated copper existing in the scale/steel interface is absorbed into the magnetite layer or evaporates into the atmosphere. Then, a proposed method to suppress hot shortness is tested by oxidation-tensile tests at high temperature and is proven to be effective.

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Periodical:

Edited by:

Toshio Maruyama, Masayuki Yoshiba, Kazuya Kurokawa, Yuuzou Kawahara and Nobuo Otsuka

Pages:

183-188

DOI:

10.4028/www.scientific.net/MSF.696.183

Citation:

Y. Kondo "Suppression of Surface Hot Shortness Caused by Copper during Hot Rolling", Materials Science Forum, Vol. 696, pp. 183-188, 2011

Online since:

September 2011

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$35.00

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