Microstructure Appearance of TC4 Titanium Alloy Welded Join by Pulsed Electron Beam

Hai Lin Dai; Rui Zhao Du; Yun He; Shuai Xing; Fang Jun Liu

doi:10.4028/www.scientific.net/MSF.982.143

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Process Development: Burr and Film Formation during High Speed Punching of Extruded PC Based Polymers
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Calculation of Carbon-Titanium-Oxygen Conductivity by First Principle
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HomeMaterials Science ForumMaterials Science Forum Vol. 982Microstructure Appearance of TC4 Titanium Alloy...

Microstructure Appearance of TC4 Titanium Alloy Welded Join by Pulsed Electron Beam

Abstract:

Study on microstructure appearance of 3 mm thick TC4 titanium alloy welded join by common electron beam and pulsed electron beam were carried out. Experimental results show that pulsed electron beam improved grain size and decreased the cooling velocity of weld metal by oscillation and fast cooling effect, the acicular martensite decomposes β phase and transforms to finer and more α′ phase, which shows an interwoven pattern.

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Periodical:

Materials Science Forum (Volume 982)

Pages:

143-150

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.982.143

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Online since:

March 2020

Authors:

Hai Lin Dai*, Rui Zhao Du, Yun He, Shuai Xing, Fang Jun Liu

Keywords:

Microstructure Appearance, Phase Transition, Pulsed Electron Beam Welding, TC4 Titanium Alloy

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