Characterization of a functionally graded material of Ti-6Al-4V to 304L stainless steel with an intermediate V section

Lourdes D. Bobbio, Brandon Bocklund, Richard Otis, John Paul Borgonia, R. Peter Dillon, Andrew A. Shapiro, Bryan McEnerney, Zi Kui Liu, Allison M. Beese

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Abstract

This work examines a functionally graded material, fabricated using additive manufacturing, that grades from Ti-6Al-4V to 304L stainless steel (SS304L) through an intermediate introduction of V. V was incorporated to preclude the formation of Fe-Ti phases in the direct joining of stainless steels and Ti-alloys. The addition of V resulted in cracking at the transition from 25 vol% SS304L/75 vol% V to 50 vol% SS304L/50 vol% V, thus the build was halted prior to the transition to 100 vol% SS304L. Through experimental investigations and thermodynamic calculations, this crack was found to be due to the formation of brittle σ-FeV.

Original languageEnglish (US)
Pages (from-to)1031-1036
Number of pages6
JournalJournal of Alloys and Compounds
Volume742
DOIs
StatePublished - Apr 25 2018

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All Science Journal Classification (ASJC) codes

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

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