DataVXAdvanced Engineering MaterialsPaper
journal article·2024-03

Simultaneously Improving Strength and Plasticity of Al–Cu Alloy by Introducing Spherical Precipitates

Xuanyi Wang, Jiapeng Hou, Baishan Gong, Zhan Qu, Hanzhong Liu, Qiang Wang, Zhenjun Zhang, Zhefeng Zhang

Advanced Engineering Materials· Volume 26· Issue 5
Publisher page
Source abstract

Abstract

The trade‐off relation between strength and plasticity is the bottleneck that limits the development of high‐strength and high‐plasticity Al–Cu alloys. Inspired from the influence of precipitate shape on the work‐hardening behavior of Al–Cu alloys, an Al–Cu–Zr–Sc alloy containing a mixed microstructure of spherical‐shaped Al3(Zr, Sc) phases and disk‐shaped θ′ phases is successfully designed and fabricated. Surprisingly, it is found that the strength and plasticity of the Al–Cu–Zr–Sc alloy are synchronously improved compared to the Al–Cu alloy with only disk‐shaped θ′ phases. The introduction of spherical‐shaped Al3(Zr, Sc) phases can increase the yield strength without sacrificing the work‐hardening ability of the Al–Cu–Zr–Sc alloy, which is mainly attributed to the extremely small strain‐hardening exponent of the Al alloy with spherical‐shaped precipitates. Besides, the predicted strength–elongation relation of the Al–Cu alloy is established based on the exponential strain‐hardening model.
Source: crossref · Quality: baseline

Research context

Metals & alloys

OpenAlex topics: Aluminum Alloy Microstructure Properties · Aluminum Alloys Composites Properties · Microstructure and mechanical properties

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Shi‐Changxu Innovation Center for Advanced Materials Institute of Metal Research Chinese Academy of Sciences 72 Wenhua Road Shenyang 110016 P. R. China

School of Materials Science and Engineering University of Science and Technology of China Hefei 230026 P. R. China

College of Light Industry Liaoning University Shenyang 110036 P. R. China

Department of Materials Physics and Chemistry, School of Materials Science and Engineering, and Key Laboratory for Anisotropy and Texture of Materials, Ministry of Education Northeastern University Shenyang 110819 P. R. China

Funding

National Natural Science Foundation of China · Natural Science Foundation of Liaoning Province

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