Aerospace applications of the SLM process of functional and functional graded metal matrix composites based on NiCr superalloys

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

3 Citations (Scopus)

Abstract

In this book chapter, NiCr-based metal matrix composites (MMCs) with various reinforcing ceramic particles, such as TiC, TiB2, and WC were produced by the selective laser melting process including additional heating. The role of various nano/microsized reinforcements in altering the structure, phase, and mechanical properties of the laser-melted composites we systematically studied. The X-ray diffraction patterns indicated that the main components were TiC, TiB2, and WC, respectively. Scanning electron microscope and energy dispersive X-ray spectroscopy of elemental mapping confirms the homogeneous distribution of reinforcing particles in the NiCr matrix. Mechanistic studies revealed that the NiCr-WC composite exhibited superior hardness and strength. Findings presented are promising to pave the way to design, development, and synthesis is of other nickel-based MMC for aerospace and industrial applications.

Original languageEnglish
Title of host publicationAdditive Manufacturing for the Aerospace Industry
PublisherElsevier Inc.
Pages265-281
Number of pages17
ISBN (Electronic)9780128140635
ISBN (Print)9780128140628
DOIs
Publication statusPublished - 19 Feb 2019

Keywords

  • Functional graded structures (FGS)
  • Metal matrix composites (MMCs)
  • Nickel-chrome superalloy
  • Selective laser melting (SLM)

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