Liquid Segregation Phenomenological Behaviors of Ti14 Alloy during Semisolid Deformation

Y. N. Chen; C. Luo; J. F. Wei; Y. Q. Zhao; Y. K. Xu

doi:10.1155/2014/908781

Advances in Mechanical Engineering (May 2014)

Liquid Segregation Phenomenological Behaviors of Ti14 Alloy during Semisolid Deformation

Y. N. Chen,
C. Luo,
J. F. Wei,
Y. Q. Zhao,
Y. K. Xu

Affiliations

Y. N. Chen: School of Materials Science and Engineering, Chang'an University, Xi'an 710064, China
C. Luo: School of Materials Science and Engineering, Chang'an University, Xi'an 710064, China
J. F. Wei: State-Key Laboratory for Mechanical Behavior of Material, Xi'an Jiaotong University, Xi'an 710049, China
Y. Q. Zhao: Northwest Institute for Nonferrous Metal Research, Xi'an 710016, China
Y. K. Xu: School of Materials Science and Engineering, Chang'an University, Xi'an 710064, China

DOI: https://doi.org/10.1155/2014/908781
Journal volume & issue: Vol. 6

Abstract

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The liquid segregation phenomenon and its effect on deformation mechanism of Ti14 alloy in semisolid metal processing were investigated by thermal simulation test. Microstructure of depth profile was determined by cross-section quantitative metallography, and liquid segregation phenomenon was described by Darcy's law. The results show that segregation phenomenon was affected by solid fraction, strain rate, and deformation rate. More liquid segregated from center to edge portion with high strain rate and/or deformation ratio as well as low solid fraction, which caused different distribution of dominating deformation mechanism. The relationship between liquid segregation and main deformation mechanism was also discussed by phenomenological model.

Published in Advances in Mechanical Engineering

ISSN: 1687-8132 (Print); 1687-8140 (Online)
Publisher: SAGE Publishing
Country of publisher: United Kingdom
LCC subjects: Technology: Mechanical engineering and machinery
Website: https://journals.sagepub.com/home/ade

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