|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||8th International Symposium on High Temperature Metallurgical Processing
||Effect of Microalloy Elements V And Mg on Organization at High Heat Input Welding Shipbuilding Structure Steel
||Wang Yan, Han Yihua, Zhu Liguang, Zhang Qingjun, Wang Shuoming, Zhang Caijun
|On-Site Speaker (Planned)
An industrial test on 210t converter-LF-CC production line on high heat input welding shipbuilding structure steel DH36 has been taken in a factory in north China, the effect of adding microalloy elements V and Mg on casting billet microstructure has been researched, and it was found that when the composition of V was between 0.03%-0.05% and the composition of Mg is between 0.002%-0.005%, as-cast organization with a large number of acicular ferrite formed a net structure. The inclusions size which induced intra-granular ferrite are mainly less than 4 μm, especially those between 2 ~ 3 μm account for 50.80%, in these inclusions the composite inclusions mixed with Mg accounted for more than 60%.
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