测定三层材料弹性模量、硬度和膜厚的压痕法

IF 2.9 3区 工程技术 Q2 MECHANICS
Siwei Zhao, Yuanxin Li, Jianwei Zhang, Bingbing Wang, Minghao Zhao, Chunsheng Lu
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引用次数: 0

摘要

多层材料因其显著的机械属性而在航空航天工业中得到广泛应用。这些材料的运行寿命和可靠性在很大程度上受到单层材料性能特征的影响。本研究建立了一种压痕方法,采用加权函数同时表征三层材料的弹性模量、硬度和薄膜厚度。数值模拟的结果表明,将基底效应纳入这种方法可以精确评估不同厚度的三层材料的机械性能。为了验证该方法,使用两种三层材料(即铝/铜/304SS 和铜/铝/304SS)进行了纳米压痕测试。此外,根据数值和实验数据,提出的模型可以简化为评估双层材料的机械性能。本研究结果证明了所提出的压痕方法在表征多层材料方面的有效性和适用性,有助于在实际应用中进行可靠的评估。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
An Indentation Method for Determining the Elastic Modulus, Hardness and Film Thickness of a Tri-Layer Materials

Multilayer materials have found extensive application within the aerospace industry due to their notable mechanical attributes. The operational longevity and dependability of such materials are substantially influenced by the performance characteristics of individual layers. In this study, an indentation method was established for employing a weighting function to simultaneously characterize the elastic modulus, hardness and film thickness of tri-layer materials. The results of numerical simulations indicate that incorporating the substrate effect in such an approach allows for precise assessment of the mechanical properties of tri-layer materials with diverse thicknesses. To validate the method, nanoindentation tests were performed using two tri-layer materials (i.e., Al/Cu/304SS and Cu/Al/304SS). Further, according to numerical and experimental data, the proposed model could be reduced to evaluate the mechanical properties of a bilayer material. The present findings demonstrate the effectiveness and applicability of the proposed indentation method in characterizing multilayer materials, facilitating reliable assessment in practical applications.

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来源期刊
CiteScore
5.80
自引率
11.40%
发文量
116
审稿时长
3 months
期刊介绍: The journal has as its objective the publication and wide electronic dissemination of innovative and consequential research in applied mechanics. IJAM welcomes high-quality original research papers in all aspects of applied mechanics from contributors throughout the world. The journal aims to promote the international exchange of new knowledge and recent development information in all aspects of applied mechanics. In addition to covering the classical branches of applied mechanics, namely solid mechanics, fluid mechanics, thermodynamics, and material science, the journal also encourages contributions from newly emerging areas such as biomechanics, electromechanics, the mechanical behavior of advanced materials, nanomechanics, and many other inter-disciplinary research areas in which the concepts of applied mechanics are extensively applied and developed.
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