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This research investigates how copper content affects the thermal conductivity and mechanical properties of Al-9Si-0.7Fe alloys.

May 6, 2026MetalsOpen Access

Tailoring Thermal Conductivity and Strength of Al-Si-Fe Alloys via Cu Micro-Alloying: Mechanisms and Modeling

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Authors

YZYi ZhouTongji University HZHuilin ZhangNanjing University of Science and Technology YCY S ChenNational Taiwan University

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Implication

Experimental findings reveal Cu micro-alloying reduces thermal conductivity while enhancing mechanical properties in aluminum alloys, indicating significant implications for material design.

Key Points

This research investigates how copper content affects the thermal conductivity and mechanical properties of Al-9Si-0.7Fe alloys.
Analyzed the effects of varying Cu content from 0.1 to 2.0 wt.% on alloy properties.
Conducted metallographic, XRD, and EPMA analyses to study structure and composition changes.
Modified existing thermal conductivity models (Maxwell and Hashin–Shtrikman) based on solubility data.
Thermal conductivity decreased from 173.6 W/(m·K) to 154.8 W/(m·K) with increased Cu content.
Yield strength increased from 72.2 MPa to 90.9 MPa as Cu content rose.
Modified models showed high prediction accuracy with correlation coefficients of 92.77% and 93.11%.

Cite This Study

Zhou et al. (2026) studied this question.

synapsesocial.com/papers/69faa2b504f884e66b533539 https://doi.org/10.3390/met16050501

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Implication

Experimental findings reveal Cu micro-alloying reduces thermal conductivity while enhancing mechanical properties in aluminum alloys, indicating significant implications for material design.

Tailoring Thermal Conductivity and Strength of Al-Si-Fe Alloys via Cu Micro-Alloying: Mechanisms and Modeling

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Member takes

Implication

Key Points

Cite This Study

Tailoring Thermal Conductivity and Strength of Al-Si-Fe Alloys via Cu Micro-Alloying: Mechanisms and Modeling

Discussion

Member takes

Implication

Key Points

Cite This Study

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