Effect of Swirly Segregation of Mo on Omega Phase Precipitation Behavior and Tensile Property of Ti-12Mo Alloy

Satoshi Emura; Xiao Hua Min; Seiichiro Ii; Koichi Tsuchiya

doi:10.4028/www.scientific.net/KEM.551.180

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Effect of Swirly Segregation of Mo on Omega Phase Precipitation Behavior and Tensile Property of Ti-12Mo Alloy
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HomeKey Engineering MaterialsKey Engineering Materials Vol. 551Effect of Swirly Segregation of Mo on Omega Phase...

Effect of Swirly Segregation of Mo on Omega Phase Precipitation Behavior and Tensile Property of Ti-12Mo Alloy

Abstract:

Swirly segregation of Mo was introduced in Ti-12 mass% Mo alloys through hot caliber rolling. After isothermal aging of the alloys, ω phase precipitated heterogeneously in the alloys due to the segregation of Mo. The effect of the swirly segregation and isothermal aging condition on room temperature tensile properties of Ti-12Mo alloy was investigated. Tensile strength has been slightly affected by the swirly segregation. However, total elongation has been extremely improved from 4~10 % to around 20 % in the samples with tensile strength of between 1000 and 1100 MPa. Under all aging conditions, samples with the swirly segregation show larger reduction in area.

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Periodical:

Key Engineering Materials (Volume 551)

Pages:

180-185

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.551.180

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Online since:

May 2013

Authors:

Satoshi Emura, Xiao Hua Min, Seiichiro Ii, Koichi Tsuchiya

Keywords:

Beta Titanium Alloy, Ductility Improvement, Heterogeneity, Omega Phase, Segregation

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