Forging Technology and Microstructure and Mechanical Properties of a Novel High Temperature Titanium Alloy Resistant to 650 °C

  • Zongyue Feng
  • Lihua Chai
  • Ziyong Chen
  • Tounan Jin
  • Guodong Shi
  • Yanfang Jin
  • Dandan Li
Conference paper

Abstract

In this paper, the Ti–Al–Sn–Zr–Mo–Si series high temperature titanium alloy is designed by using the electron concentration theory and the first principles calculation. The ingot of a novel high temperature alloy was prepared by induction skull melting (ISM) in a water cooler copper crucible, then three different kinds of forging technology (two steps of axial forging, two steps of lateral forging and two steps of multi-directional forging) are employed for the Sub β forging at 1050 °C and the near β forging at 980 °C. It shows a basket-weave microstructure after sub β forging at 1050 °C. While after the near β forging at 980 °C, the alloy shows a duplex microstructure with a little amount of primary α-phase and mechanical properties is better than the alloy forging at 1050 °C. The grains undergoing a two steps of multi-directional forging is finer and more uniform, and the properties is more excellent for the alloy.

Keywords

High temperature titanium alloy Forging technology Microstructure Mechanical properties 

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Copyright information

© Springer Nature Singapore Pte Ltd. 2018

Authors and Affiliations

  • Zongyue Feng
    • 1
  • Lihua Chai
    • 1
  • Ziyong Chen
    • 1
  • Tounan Jin
    • 1
  • Guodong Shi
    • 1
  • Yanfang Jin
    • 1
  • Dandan Li
    • 1
  1. 1.College of Materials Science and EngineeringBeijing University of TechnologyBeijingChina

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