液体渗铝过程中CrNi50WMoTiAlNb合金表面形成的铝化物涂层组织

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

Metallurgist Pub Date : 2025-07-15 DOI:10.1007/s11015-025-01967-8

V. P. Kulevich, A. I. Bogdanov, V. G. Shmorgun, S. A. Kuznetsov

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引用次数: 0

摘要

研究了CrNi50WMoTiAlNb合金表面经热浸渗铝和后续热处理后镀层的组织和相组成。对CrNi50WMoTiAlNb合金进行渗铝处理，形成具有明显层状结构的连续涂层，上层为带有共晶夹杂的Al，中间层为Al和金属间化合物（CrAl7和k-Al76Cr18Ni6）的混合物，薄附面层为φ‑Al77.5Cr12.5Ni10 + k‑al76cr18ni6 /φ‑Al77.5Cr12.5Ni10 /Ni2Al3（Cr）。在1100 ℃下对渗铝CrNi50WMoTiAlNb合金进行热处理，由于化学元素的扩散驱动重分布，形成金属间膜。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Formation of aluminide coating structure on the CrNi50WMoTiAlNb alloy surface during liquid aluminizing

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Formation of aluminide coating structure on the CrNi50WMoTiAlNb alloy surface during liquid aluminizing

The structure and phase composition of coatings formed on the surface of the CrNi50WMoTiAlNb alloy by hot dip aluminizing with subsequent heat treatment were studied. Aluminizing of the CrNi50WMoTiAlNb alloy allows forming a continuous coating with a clearly distinguishable layered structure, in which the upper layer is represented by Al with eutectic inclusions, the middle layer consists of a mixture of Al and intermetallics (CrAl₇ and k-Al76Cr18Ni6), and a thin boundary layer has the following structure: φ‑Al77.5Cr12.5Ni10 + k-Al76Cr18Ni6/φ-Al77.5Cr12.5Ni10/Ni₂Al₃(Cr). Heat treatment of the aluminized CrNi50WMoTiAlNb alloy at 1100 °C leads to the formation of an intermetallic coating due to the diffusion-driven redistribution of chemical elements.

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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).