A study of the scale structure of hot-rolled steel strip by simulated coiling and cooling

被引:133
作者
Chen, RY [1 ]
Yuen, WYD [1 ]
机构
[1] BHP Steel Res Labs, Port Kembla, NSW 2505, Australia
来源
OXIDATION OF METALS | 2000年 / 53卷 / 5-6期
关键词
oxide scale; hot-rolled strip; wustite decomposition; magnetite; continuous cooling; coiling temperature;
D O I
10.1023/A:1004637127231
中图分类号
TF [冶金工业];
学科分类号
0806 ;
摘要
The morphological development of oxide scale or? hot-rolled steel strip under various simulated coiling and cooling conditions was investigated. Oxide-scale structures developed were classified into several categories, and the conditions under which each category formed were identified and mapped It was found that oxide scale formed under normal coiling and cooling conditions had a structure that was difficult to pickle. Increased cooling rate after coiling, or coiling at a temperature below 350 degrees C, improved this structure. The conditions under which a magnetite laver at the wustite-steel interface was formed during continuous cooling were also identified and the mechanisms of its formation discussed.
引用
收藏
页码:539 / 560
页数:22
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