Role of Dispersed Phases in Formation of Properties of Heat-Resistant Titanium Alloys

IF 0.6 4区材料科学 Q4 METALLURGY & METALLURGICAL ENGINEERING

Metal Science and Heat Treatment Pub Date : 2026-08-06 DOI:10.1007/s11041-026-01211-3

A. A. Popov, N. A. Popov, K. I. Lugovaya

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Abstract

The results of the research made by the staff of the Department of Heat Treatment and Metal Physics of the Ural Federal University on the processes of silicide and aluminide precipitation in the structure and their role in formation of the set of mechanical properties of titanium alloys are reviewed. It is shown that the S₁-type silicides precipitated over phase boundaries reduce the impact toughness of the alloys, while the S₂ silicides formed chiefly in the α-phase reduce the heat resistance characteristics. The role of the α₂-phase in formation of properties of near-α-titanium alloys is considered. It is established that it is possible to control the formation of a two-phase (α + α₂) structure of different types by varying the heat treatment modes and thus ensure the development of both heterogeneous and homogeneous transformations. It is shown that the homogeneous transformation mechanism provides greater ductility of the alloys compared to the heterogeneous one.

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分散相在耐热钛合金性能形成中的作用

本文综述了乌拉尔联邦大学热处理和金属物理系工作人员对钛合金组织中硅化物和铝化物析出过程及其在形成一系列力学性能中的作用的研究结果。结果表明，越过相界析出的s1型硅化物降低了合金的冲击韧性，而主要形成于α-相的S2型硅化物降低了合金的耐热性。研究了α2相在近α-钛合金性能形成中的作用。通过改变热处理方式，可以控制不同类型的两相（α + α2）组织的形成，从而保证非均相转变和均相转变的发展。结果表明，合金的均相相变机制比非均相相变机制具有更好的塑性。

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

Metal Science and Heat Treatment 工程技术-冶金工程

CiteScore

1.20

自引率

16.70%

发文量

102

审稿时长

4-8 weeks

期刊介绍： Metal Science and Heat Treatment presents new fundamental and practical research in physical metallurgy, heat treatment equipment, and surface engineering. Topics covered include: New structural, high temperature, tool and precision steels; Cold-resistant, corrosion-resistant and radiation-resistant steels; Steels with rapid decline of induced properties; Alloys with shape memory effect; Bulk-amorphyzable metal alloys; Microcrystalline alloys; Nano materials and foam materials for medical use.