High-yield-strength TRIP titanium alloy: a low-cost and short-process manufacturing approach

IF 2.7 4区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Letters Pub Date : 2025-04-05 DOI:10.1016/j.matlet.2025.138535

Junyang Chen, Zhilei Xiang, Cheng Qian, Zongyi Zhou, Bing Wang, Jihao Li, Ziyong Chen

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引用次数: 0

Abstract

This study proposes a high-yield strength and high-toughness transformation-induced plasticity (TRIP) titanium alloy design strategy, utilizing deformation-induced metastable β-phase and localized TRIP effects, while optimizing its fabrication through a short-process thermomechanical treatment. The results show that rolling-induced metastable β-phase can undergo localized TRIP effects during plastic deformation, significantly enhancing the yield strength (1250 MPa) of the alloy and avoiding the issue of yield strength drop in traditional TRIP titanium alloys caused by large-scale SIM (stress-induced martensitic transformation). Furthermore, SIM-dislocation interactions provide a dynamic strengthening mechanism, enabling the alloy to achieve high strength while maintaining excellent strength-ductility synergy. Meanwhile, a short-process fabrication route combining solution treatment and deformation-induced β-phase stability tuning eliminates the aging treatment required in conventional titanium alloys, significantly reducing manufacturing costs while enhancing feasibility for large-scale industrial applications. This design strategy, which leverages deformation-induced metastable structures and localized TRIP effects, achieves ideal mechanical properties, offering new insights for the development of high-strength and high-toughness materials.

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高屈服强度TRIP钛合金：低成本和短工艺制造方法

本研究提出了一种高屈服强度和高韧性相变诱导塑性（TRIP）钛合金的设计策略，利用变形诱导亚稳β相和局域化TRIP效应，同时通过短工艺热处理优化其制造。结果表明：在塑性变形过程中，轧制诱导的亚稳β相可产生局部的TRIP效应，显著提高了合金的屈服强度（1250 MPa），避免了传统TRIP钛合金因大规模应力诱导马氏体相变而导致屈服强度下降的问题。此外，sim -位错相互作用提供了一种动态强化机制，使合金在保持良好的强度-塑性协同作用的同时获得高强度。同时，结合固溶处理和变形诱导β相稳定性调整的短工艺制造路线消除了传统钛合金所需的时效处理，显著降低了制造成本，提高了大规模工业应用的可行性。这种设计策略利用变形诱导亚稳结构和局部TRIP效应，实现了理想的力学性能，为高强度和高韧性材料的开发提供了新的见解。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Materials Letters 工程技术-材料科学：综合

CiteScore

5.60

自引率

3.30%

发文量

1948

审稿时长

50 days

期刊介绍： Materials Letters has an open access mirror journal Materials Letters: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review. Materials Letters is dedicated to publishing novel, cutting edge reports of broad interest to the materials community. The journal provides a forum for materials scientists and engineers, physicists, and chemists to rapidly communicate on the most important topics in the field of materials. Contributions include, but are not limited to, a variety of topics such as: • Materials - Metals and alloys, amorphous solids, ceramics, composites, polymers, semiconductors • Applications - Structural, opto-electronic, magnetic, medical, MEMS, sensors, smart • Characterization - Analytical, microscopy, scanning probes, nanoscopic, optical, electrical, magnetic, acoustic, spectroscopic, diffraction • Novel Materials - Micro and nanostructures (nanowires, nanotubes, nanoparticles), nanocomposites, thin films, superlattices, quantum dots. • Processing - Crystal growth, thin film processing, sol-gel processing, mechanical processing, assembly, nanocrystalline processing. • Properties - Mechanical, magnetic, optical, electrical, ferroelectric, thermal, interfacial, transport, thermodynamic • Synthesis - Quenching, solid state, solidification, solution synthesis, vapor deposition, high pressure, explosive