Mn-Depleted Zone Formation in Rapidly Cooled High-Strength Low-Alloy Steel Welds

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• 作者：Yongjoon Kang (1)
  Kyutae Han (1)
  Joo Hyun Park (2)
  Changhee Lee (1)
  
• 刊名：Metallurgical and Materials Transactions A
• 出版年：2014
• 出版时间：October 2014
• 年：2014
• 卷：45
• 期：11
• 页码：4753-4757
• 全文大小：2,206 KB
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• 作者单位：Yongjoon Kang (1)
  Kyutae Han (1)
  Joo Hyun Park (2)
  Changhee Lee (1)
  
  1. Division of Materials Science and Engineering, Hanyang University, Seoul, 133-791, Republic of Korea
  2. Department of Materials Engineering, Hanyang University, Ansan, 426-791, Republic of Korea
  
• ISSN：1543-1940

文摘

The mechanism of formation of an Mn-depleted zone (MDZ) near the inclusion in a steel weld was elucidated based on quantification of MDZ depth and thermodynamic calculations. The effective inclusion phase for intragranular nucleation, which increased as a function of increasing chemical driving force, satisfied the requirements for presence of a considerable quantity of Mn in the phase, and a lower precipitation temperature compared with the solidus temperature of the matrix.