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Effects of heat treatment and sintering temperature on the microstructure of TiBw/Ti60 composites with a novel network microstructure

  • Harbin Institute of Technology

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

In order to improve the high temperature mechanical properties of titanium matrix composites (TMCs), in situ TiB whiskers reinforced Ti60 (TiBw/Ti60) composites with a novel network microstructure were fabricated. Coarse and anisotropic TiB whiskers were observed at high sintering temperature of 1300 oC, while many unreacted TiB2 particles were still detected at the sintering temperature of 1200 oC. The strength of the composites sintered at the temperature of 1300 oC increased from 1030MPa to 1093MPa, and the tensile fracture elongation increased from 1.6% to 2.5% compared with those fabricated at 1200 oC. The solution treatment (1100 oC/4hrs/WQ) could effectively reduce the element segregation formed in the sintering process. After solution treatment, both the strength and elongation of the composites remarkably increased from 1093MPa to 1190MPa and 2.5% to 4%, respectively.

Original languageEnglish
Title of host publication16th European Conference on Composite Materials, ECCM 2014
PublisherEuropean Conference on Composite Materials, ECCM
ISBN (Electronic)9780000000002
StatePublished - 2014
Externally publishedYes
Event16th European Conference on Composite Materials, ECCM 2014 - Seville, Spain
Duration: 22 Jun 201426 Jun 2014

Publication series

Name16th European Conference on Composite Materials, ECCM 2014

Conference

Conference16th European Conference on Composite Materials, ECCM 2014
Country/TerritorySpain
CitySeville
Period22/06/1426/06/14

Keywords

  • Heat treatment
  • Precipitation
  • Sintering temperature
  • Titanium matrix composites

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