耐热铝化钛合金的气体雾化粉末成分

IF 0.8 4区材料科学 Q4 METALLURGY & METALLURGICAL ENGINEERING

Metallurgist Pub Date : 2025-07-15 DOI:10.1007/s11015-025-01956-x

P. V. Panin, I. A. Bogachev, E. B. Alekseev, E. A. Lukina, D. I. Sukhov, S. A. Naprienko

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引用次数: 0

摘要

在核研究委员会“Kurchatov研究所”-VIAM，采用电极感应熔化气体雾化法制备了国产耐热铝化钛合金的金属粉末组合物（MPC）。它们包括Ti-44.5AI-2V-1Nb-2Cr-0.1Gd (at %) γ - TiAl合金（VIT7L级）和Ti-22Al-23Nb-0.5Mo-0.8Zr-1.4 V-0.4Si-0.2C （at %）。%)正交Ti2AlNb合金（牌号VTI‑4）。元素分析表明，金属粉末与初始铸造电极非常匹配。粉末由快速凝固的原位颗粒组成，具有枝晶结构，亚稳相组成分别为（γ+α(α2)+β）和（β+α2+O），这是VIT7L和vit4合金淬火状态的典型特征。目标分数（40-100 µm）的MPCs具有高质量的流动性和球形度指标，适合通过选择性电子束熔化（SEBM）技术进行增材制造。

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Gas atomized powder compositions of heat-resistant titanium aluminide alloys

At the NRC “Kurchatov Institute”—VIAM, metal powder compositions (MPC) of domestic heat-resistant titanium aluminide alloys were fabricated using electrode induction melting gas atomization. They included Ti–44.5AI–2V–1Nb–2Cr–0.1Gd (at %) γ‑TiAl alloy (grade VIT7L) and Ti–22Al–23Nb–0.5Mo–0.8Zr–1.4 V–0.4Si–0.2C (at. %) orthorhombic Ti₂AlNb alloy (grade VTI‑4). Elemental analysis of the metal powders demonstrated a close match to the initial cast electrodes. The powders consist of rapidly solidified in-situ particles with dendritic structure and metastable phase compositions of (γ+α(α₂)+β) and (β+α₂+O), typical for the quenched state of the VIT7L and VTI‑4 alloys, respectively. The MPCs of the target fraction (40–100 µm) displayed high quality indices of flowability and sphericity, making them suitable for additive manufacturing by selective electron beam melting (SEBM) technology.

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来源期刊

Metallurgist 工程技术-冶金工程

CiteScore

1.50

自引率

44.40%

发文量

151

审稿时长

4-8 weeks

期刊介绍： Metallurgist is the leading Russian journal in metallurgy. Publication started in 1956. Basic topics covered include: State of the art and development of enterprises in ferrous and nonferrous metallurgy and mining; Metallurgy of ferrous, nonferrous, rare, and precious metals; Metallurgical equipment; Automation and control; Protection of labor; Protection of the environment; Resources and energy saving; Quality and certification; History of metallurgy; Inventions (patents).