An Intrinsic Construction Model of BN Cu-Ag Alloy for Predicting Its Mechanical Properties

The mechanical characteristics of bimodal nanocrystalline (BN) Cu-Ag alloy metallic material are described, using a plasticity model based on dislocation theory. Stress–strain curves are generated for the BN Cu-Ag alloy material after accounting for Orowan strengthening and the dislocation motion of...

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Bibliographic Details
Published in:JOM (1989) 2023-03, Vol.75 (3), p.679-692
Main Authors: Zhi, Youran, Tang, Qiaoyun, Zhang, Feng, Guo, Ao, Yang, Huan
Format: Article
Language:English
Subjects:
2d Materials – Preparation
Alloys
Chemistry/Food Science
Copper
Copper base alloys
Deformation
Ductility
Earth Sciences
Engineering
Environment
Grain boundaries
Grain size
Investigations
Manufacturing
Mechanical properties
Metals
Nanomaterials
Particle size
Physics
Properties & Applications
Silver
Solid solutions
Strain hardening
Strain rate
Strengthening
Stress-strain curves
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Description
Summary:The mechanical characteristics of bimodal nanocrystalline (BN) Cu-Ag alloy metallic material are described, using a plasticity model based on dislocation theory. Stress–strain curves are generated for the BN Cu-Ag alloy material after accounting for Orowan strengthening and the dislocation motion of the coarse and fine grain phases. The numerical outcomes demonstrate that the suggested model is capable of describing the mechanical characteristics of the bimodal metal, such as yield strength and strain hardening. The experimental findings and these predictions agree fairly well. The suggested model effectively captures the inherent behavior of the bimodal Cu-Ag alloy for grain size, volume fraction of solute, and strain rate. For the BN Cu-Ag alloy, Orowan strengthening has very little to no impact on the mechanical characteristics.
ISSN:1047-4838
1543-1851
DOI:10.1007/s11837-022-05606-4