Influence of the Initial Microstructure on the Heat Treatment Response and Tensile Properties of TRIP-Assisted Steel

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• 作者：Kyooyoung Lee ; Joo Hyun Ryu ; Sea Woong Lee…
• 刊名：Metallurgical and Materials Transactions A
• 出版年：2016
• 出版时间：November 2016
• 年：2016
• 卷：47
• 期：11
• 页码：5259-5265
• 全文大小：2,453 KB
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry
  Materials Science
  Metallic Materials
  Structural Materials
  Physical Chemistry
  Ceramics,Glass,Composites,Natural Materials
  
• 出版者：Springer Boston
• ISSN：1543-1940
• 卷排序：47

文摘

Microstructure evolution and mechanical properties were investigated in transformation-induced plasticity (TRIP) steel having a different initial microstructure. Compared with the cold-rolled structure that evolves into a typical microstructure of TRIP steel, the martensitic initial structure produces a more lath-type microstructure as the fraction of retained austenite increases in the initial microstructure. The interlath austenite after heat treatment contributes to improving the tensile properties by the enhanced stability and the refinement of the matrix phase.