Shrinkage porosity and its alleviation by heavy reduction in continuously cast strand
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- 作者：Qipeng Dong ; Jiongming Zhang ; jmz2203@sina.com" class="auth_mail" title="E-mail the corresponding author ; Bo Wang ; Xinkai Zhao
- 关键词：Porosity ; Improvement ; Heavy reduction ; Experiment ; Closure
- 刊名：Journal of Materials Processing Technology
- 出版年：2016
- 出版时间：December 2016
- 年：2016
- 卷：238
- 期：Complete
- 页码：81-88
- 全文大小：2028 K
文摘
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With a simplified model, the size of macro-porosity was predicted to be about 2.7 mm in diameter with the conditions used in this work.
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Heavy reduction can effectively alleviate the porosity in the billets, also large reduction and high central solid fraction will promote this alleviation.
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The heavy reduction was shown to be more effective in the improvement of porosity compared to the traditional soft reduction, and this was discussed with numerical analysis.