Study on Tensile Fracture Behavior of New Type High Temperature Titanium Alloy Ti-Al-Nb at Room Temperature

Abstract:

In this paper, in order to explore the development of a titanium-based superalloy with a working temperature of 700°C to 750°C and good ductility at room temperature, using Ti+Al+Ti2AlNb ternary powder as the raw material, the temperature is 1200°C to 1300°C, 30MPa, 1.5h Directly mixed and sintered under hot pressing conditions, a new type of titanium-based superalloy (TiAl+Ti2AlNb) samples were prepared. The fracture morphology of hot-pressed sintered samples and tensile samples used scanning electron microscope (Scanning electron microscope, referred to as SEM) and Electron backscattered diffraction (EBSD) for observation. Discuss the room temperature tensile fracture behavior of a new type of high temperature titanium alloy Ti-Al-Nb, and lay a technical foundation for the development of a new type of high temperature titanium-based alloy with low brittleness at room temperature.

• Periodical: Key Engineering Materials (Volume 905)
• Pages: 14-21
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.905.14
• Online since: January 2022
• Authors: Shuang Fang*, Min Cong Zhang, Qiu Ying Yu, Hua Ping Xiong
• Keywords: High Temperature Titanium Alloy, Room Temperature, Tensile Fracture Behavior, Ti-Al-Nb

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