Formation of equiaxed alpha and titanium nitride precipitates in spark plasma sintered TiB/Ti-6Al-4V composites

P. Nandwana, J. Y. Hwang, M. Y. Koo, J. Tiley, S. H. Hong, R. Banerjee

Research output: Contribution to journalArticlepeer-review

41 Scopus citations

Abstract

Spark plasma sintered TiB/Ti-6Al-4V composites have been characterized using scanning electron microscopy (SEM), electron backscattered diffraction (EBSD) and transmission electron microscopy (TEM). As-SPS processed composites exhibit a more refined distribution of equiaxed α precipitates as compared to arc-melted composites containing similar volume fraction of TiB precipitates. Additionally, SPS processed composites also show a highly refined distribution of TiN precipitates, as revealed by TEM studies.

Original languageEnglish
Pages (from-to)202-205
Number of pages4
JournalMaterials Letters
Volume83
DOIs
StatePublished - Sep 15 2012

Funding

This work has been supported in part by the National Space Lab program ( N01090333 ) through the Korea Science and Engineering Foundation funded by the Ministry of Education, Science and Technology , and Defense Acquisition Program Administration and Agency for Defense Development under Basic Research program ( UD080009GD ) as well as the ISES contract awarded to the University of North Texas by the U.S. Air Force Research Laboratory , AFRL contract number FA8650-08-C-5226 . The authors also gratefully acknowledge the Center for Advanced Research and Technology (CART) at the University of North Texas.

Keywords

  • Composite
  • Spark plasma sintering
  • Ti-6Al-4V
  • TiB
  • TiN
  • α/β phase

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