Microstructural Characterization and Mechanical Performance of Hot Work Tool Steel Processed by Selective Laser Melting

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• 作者：Martin Joachim Holzweissig (1)
  Alexander Taube (1) (2)
  Florian Brenne (1) (2)
  Mirko Schaper (1)
  Thomas Niendorf (3)
  
  1. Lehrstuhl f眉r Werkstoffkunde (Materials Science) ; University of Paderborn ; 33095 ; Paderborn ; Germany
  2. Direct Manufacturing Research Center (DMRC) ; 33098 ; Paderborn ; Germany
  3. Institute of Materials Engineering ; Technische Universit盲t Bergakademie Freiberg ; 09599 ; Freiberg ; Germany
  
• 刊名：Metallurgical and Materials Transactions B
• 出版年：2015
• 出版时间：April 2015
• 年：2015
• 卷：46
• 期：2
• 页码：545-549
• 全文大小：737 KB
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• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry
  Materials Science
  Manufacturing, Machines and Tools
  Metallic Materials
  Operating Procedures and Materials Treatment
  Characterization and Evaluation Materials
  Numerical and Computational Methods in Engineering
  
• 出版者：Springer Boston
• ISSN：1543-1916

文摘

Microstructural characterization of hot work tool steel processed by selective laser melting was carried out. The findings shed light on the interrelationship between processing parameters and the microstructural evolution. It was found that the microstructure after layer-wise processing partially consists of metastable-retained austenite which transforms to martensite in a subsequent tensile test. This improves the mechanical properties of the hot work tool steel enabling direct application.