• Igor Polozov
  • Vera Popovich
  • Nikolay Razumov
  • Tagir Makhmutov
  • Anatoliy Popovich

Conventional manufacturing of titanium intermetallic alloys is associated with brittleness, hard machinability and, consequently, the high cost, which makes additive manufacturing a promising way of producing complex intermetallic parts. At the same time, γ-TiAl alloys exhibit good high temperature strength, fatigue, and oxidation resistance. In the present study the gamma-based alloy spherical powders were prepared by mechanical alloying from elemental powders followed by the plasma spheroidization process. Microstructure and phase composition of the produced powders were studied after different milling times in a planetary mill. The optimally milled powders were treated in the flow of thermal plasma to obtain powder particles with a high degree of sphericity. The produced spherical powders were used in Selective Laser Melting (SLM) process with high preheating temperatures to obtain crack-free intermetallic samples. The microstructure and phase composition of the SLM-ed TiAl-samples were investigated with regard to different process parameters.

Original languageEnglish
Title of host publicationProceedings of the 149th Annual Meeting and Exhibition Supplemental (TMS 2020)
Place of PublicationCham, Switzerland
PublisherSpringer
Pages375-383
ISBN (Electronic)978-3-030-36296-6
ISBN (Print)978-3-030-36295-9
DOIs
Publication statusPublished - 2020
EventTMS 2020: 149th Annual Meeting & Exhibition of the Minerals, Metals and Materials Society - San Diego, United States
Duration: 23 Feb 202027 Feb 2020

Publication series

NameMinerals, Metals and Materials Series
ISSN (Print)2367-1181
ISSN (Electronic)2367-1696

Conference

ConferenceTMS 2020: 149th Annual Meeting & Exhibition of the Minerals, Metals and Materials Society
CountryUnited States
CitySan Diego
Period23/02/2027/02/20

    Research areas

  • Additive manufacturing, Mechanical alloying, Plasma spheroidization, Selective laser melting, Titanium alloy

ID: 71536282