Formation of Linear Gradient Structures in Titanium Alloys Subjected to Hydrothermal Treatment

IF 0.4 Q4 METALLURGY & METALLURGICAL ENGINEERING

Russian Metallurgy (Metally) Pub Date : 2025-03-14 DOI:10.1134/S0036029524702550

A. S. Stepushin, O. N. Gvozdeva, A. V. Shalin, P. A. Smirnov, A. S. Zhurbenko

引用次数: 0

Abstract

Structuring in hydrogen-alloyed VT22 titanium alloy subjected to vacuum annealing has been studied. It has been found that the alloy undergoes β → α transformation during low-temperature vacuum annealing, as a result of which the large-platelet structure changes to a dispersed one. The particle size of the resulting degassing-induced phase (α_deg) is no greater than 0.5 μm, and its hardness is 38 HRC. It has also been found that in the case of unidirectional hydrogenation with a barrier coating, the thickness of a layer with dispersed structure is 1.3 times greater than for omnidirectional hydrogenation without the coating with the temperature–rate conditions of the process being the same.

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热液处理钛合金中线性梯度结构的形成

对真空退火后的氢合金VT22钛合金的组织进行了研究。结果表明，合金在低温真空退火过程中发生β→α相变，由大血小板结构转变为分散的血小板结构。所得脱气诱导相的粒径（αdeg）不大于0.5 μm，硬度为38 HRC。在温度-速率条件相同的情况下，有阻挡层的单向加氢，分散结构层的厚度是无阻挡层的全向加氢的1.3倍。

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

Russian Metallurgy (Metally) METALLURGY & METALLURGICAL ENGINEERING-

CiteScore

0.70

自引率

25.00%

发文量

140

期刊介绍： Russian Metallurgy (Metally) publishes results of original experimental and theoretical research in the form of reviews and regular articles devoted to topical problems of metallurgy, physical metallurgy, and treatment of ferrous, nonferrous, rare, and other metals and alloys, intermetallic compounds, and metallic composite materials. The journal focuses on physicochemical properties of metallurgical materials (ores, slags, matters, and melts of metals and alloys); physicochemical processes (thermodynamics and kinetics of pyrometallurgical, hydrometallurgical, electrochemical, and other processes); theoretical metallurgy; metal forming; thermoplastic and thermochemical treatment; computation and experimental determination of phase diagrams and thermokinetic diagrams; mechanisms and kinetics of phase transitions in metallic materials; relations between the chemical composition, phase and structural states of materials and their physicochemical and service properties; interaction between metallic materials and external media; and effects of radiation on these materials.