Effects of high misfit on isothermal β → ω phase transformation in Ti-19V alloy: A three-dimensional phase-field simulation

IF 2.6 3区工程技术 Q1 NUCLEAR SCIENCE & TECHNOLOGY

Nuclear Engineering and Technology Pub Date : 2025-02-11 DOI:10.1016/j.net.2025.103537

Shisen Gao , Xuxi Liu , Penghui Lei , Wenbo Liu

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引用次数: 0

Abstract

Titanium-based alloys have been used extensively in the nuclear applications, aerospace industry, medical domain, military field, petrochemical industry and other high-tech areas. The omega (ω) phase formation significantly impacts the mechanical and physical properties of Titanium alloys. This study developed a phase-field model to simulate the microstructural evolution during the isothermal β → ω phase transformation in a Ti-19 at.%V alloy. While reflecting the essential physics of a mixed diffusive–displacive mechanism that leads to β → ω phase transformation and considering the interplay between the interfacial energy and elastic strain energy on the morphology of ω precipitates, the simulations appropriately predicted the microstructural evolution of the ω phase and the ω precipitates homogeneously distributed in the β matrix. During the isothermal evolution of ω precipitates, the morphology of ω precipitates changes from ellipsoidal to cuboidal, which is the result of the combined effect of anisotropic interfacial energy, elastic strain energy and impingement.

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来源期刊

Nuclear Engineering and Technology 工程技术-核科学技术

CiteScore

4.80

自引率

7.40%

发文量

431

审稿时长

3.5 months

期刊介绍： Nuclear Engineering and Technology (NET), an international journal of the Korean Nuclear Society (KNS), publishes peer-reviewed papers on original research, ideas and developments in all areas of the field of nuclear science and technology. NET bimonthly publishes original articles, reviews, and technical notes. The journal is listed in the Science Citation Index Expanded (SCIE) of Thomson Reuters. NET covers all fields for peaceful utilization of nuclear energy and radiation as follows: 1) Reactor Physics 2) Thermal Hydraulics 3) Nuclear Safety 4) Nuclear I&C 5) Nuclear Physics, Fusion, and Laser Technology 6) Nuclear Fuel Cycle and Radioactive Waste Management 7) Nuclear Fuel and Reactor Materials 8) Radiation Application 9) Radiation Protection 10) Nuclear Structural Analysis and Plant Management & Maintenance 11) Nuclear Policy, Economics, and Human Resource Development