Grain Refinement of Titanium Weld by Heterogeneous Nucleation

Abstract:

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Microstructure formation of CP-Ti and TiB reinforced titanium were in-situ observed during the thermal cycle simulated for Tungsten Inert Gas (TIG) welding, by using laser scanning confocal microscopy. Under the in-situ observation of TiB reinforced titanium, heterogeneous nucleation of α-phase at inclusion was clearly detected and plate growth was shown in high timeresolution. Furthermore, it was observed that grain boundary of β -phase was pinned by the inclusions. Microstructure difference between pure and TiB reinforced titanium was explained based on those in-situ observations.

Info:

Periodical:

Materials Science Forum (Volumes 580-582)

Edited by:

Changhee Lee, Jong-Bong Lee, Dong-Hwan Park and Suck-Joo Na

Pages:

21-24

DOI:

10.4028/www.scientific.net/MSF.580-582.21

Citation:

H. Terasaki et al., "Grain Refinement of Titanium Weld by Heterogeneous Nucleation", Materials Science Forum, Vols. 580-582, pp. 21-24, 2008

Online since:

June 2008

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Price:

$35.00

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