Microstructure and Room-Temperature Fracture Toughness of Nb–Ti–Si In Situ Composite Prepared by Selective Laser Melting

  • Yongwang KangEmail author
  • Fengwei Guo
  • Ming Li
Conference paper
Part of the Springer Proceedings in Physics book series (SPPHY, volume 217)


The chemical composition, phase category, and distribution of ternary Nb–Ti–Si in situ composites prepared by arc-melting and selective laser melting (SLM) were investigated by X-ray diffraction and scanning electron microscope equipped with energy dispersive spectroscopy. The room-temperature fracture behaviors were examined by three-point bending tests. SLM would refine the microstructure of Nb–Ti–Si composite, and the finer microstructure was benefit to increase the room-temperature fracture toughness of the corresponding material.


Intermetallic In situ composite Microstructure Room-temperature fracture toughness 



This work was financially supported by National Key R&D Program of China (No. 2017YFB0702904).


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© Springer Nature Singapore Pte Ltd. 2019

Authors and Affiliations

  1. 1.Science and Technology on Advanced High Temperature Structural Materials LaboratoryBeijing Institute of Aeronautical MaterialsBeijingChina

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