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Effects of Forging Temperature on Microstructure and Mechanical Properties of 650 °C High Temperature Titanium Alloy

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

Abstract

The microstructure and mechanical properties of the alloy Ti–Al–Sn–Zr–Mo–Nb–Ta–Si–C–Er forged at different temperature were discussed. The microscopic observation showed that both forged alloys consisted of basket weave structure, the alloy forged at 1000 °C had some lamellar α phase turning to equiaxed α phase, and its α lamellae was finer than that forged at 1050 °C, which coincided with the theoretical expectation. The mechanical properties at room temperature and 650 °C were measured, and the results showed that the forged alloy at 1000 °C possessed better mechanical properties. Compared with the alloy at 1050 °C, the alloy forged at 1000 °C has a high strength and slightly better elongation. The result showed that with the decrease of forging temperature, the strength and ductility increase, the size of α lamella reduces, and the number of equiaxed α phase increases. The excellent comprehensive mechanical properties of the alloy are obtained by forging at 1000 °C.

Keywords

High-temperature titanium alloy Forging temperature Microstructure Mechanical properties 

Notes

Acknowledgements

This work was financially supported by the foundation of industrial transformation and upgrading engineering of the ministry of industry and information in China, the National Natural Science Foundation of China (No. 51301005)

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Copyright information

© Springer Nature Singapore Pte Ltd. 2018

Authors and Affiliations

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

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