Kinetics of phase formation and mechanical properties of multilayer Al–30 at% Cu and Al–60 at% Cu foils with different modulation periods

IF 3.674 4区工程技术 Q1 Engineering

Applied Nanoscience Pub Date : 2026-06-13 DOI:10.1007/s13204-026-03173-7

Sergiy Polishchuk, Yana Matvienko, Anatolii Ustinov, Serhii Demchenkov, Mykola Skoryk, Iryna Zahorulko, Oleh Molebnyi, Oleksandr Kremenchutskyi

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引用次数: 0

Abstract

In this work, the influence of chemical composition (Al–30 at% Cu and Al–60 at% Cu) and different modulation periods (the sum thickness of one Al layer and one Cu layer) on the kinetics of phase transformations and mechanical properties of multilayer foils produced by electron-beam deposition was investigated. Using X-ray diffraction, SEM, differential scanning calorimetry (DSC), and resistometry, the temperature ranges (130–350 °C) and enthalpy changes for the reactions (160.7–312.5 J/g) were determined. Isoconversional Friedman analysis revealed the multi-step nature of the process and the dependence of activation energy on the extent of conversion. It was found that decreasing the modulation period accelerates phase formation (primary phases Al₂Cu and Al₄Cu₉), significantly increases microhardness (up to 7 GPa) and Young’s modulus (up to 190 GPa), while reducing ductility.

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不同调制周期下多层Al-30 at% Cu和Al-60 at% Cu箔的相形成动力学和力学性能

本文研究了化学成分（Al - 30 at% Cu和Al - 60 at% Cu）和不同调制周期（一个Al层和一个Cu层的总厚度）对电子束沉积多层箔相变动力学和力学性能的影响。采用x射线衍射、扫描电镜（SEM）、差示扫描量热法（DSC）和电阻法测定了反应的温度范围（130 ~ 350℃）和焓变（160.7 ~ 312.5 J/g）。等转换弗里德曼分析揭示了这一过程的多步骤性质以及活化能对转换程度的依赖。研究发现，减小调制周期可加速合金相（Al2Cu和Al4Cu9）的形成，显著提高合金显微硬度（高达7 GPa）和杨氏模量（高达190 GPa），同时降低合金的塑性。

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

Applied Nanoscience Materials Science-Materials Science (miscellaneous)

CiteScore

7.10

自引率

0.00%

发文量

430

期刊介绍： Applied Nanoscience is a hybrid journal that publishes original articles about state of the art nanoscience and the application of emerging nanotechnologies to areas fundamental to building technologically advanced and sustainable civilization, including areas as diverse as water science, advanced materials, energy, electronics, environmental science and medicine. The journal accepts original and review articles as well as book reviews for publication. All the manuscripts are single-blind peer-reviewed for scientific quality and acceptance.