Ultimate Strength of Metals

被引：41

作者：

Chandross, Michael ^{[1
]}

Argibay, Nicolas ^{[1
]}

机构：

[1] Sandia Natl Labs, Mat Phys & Chem Sci Ctr, Albuquerque, NM 87123 USA

来源：

PHYSICAL REVIEW LETTERS | 2020年 / 124卷 / 12期

关键词：

HALL-PETCH RELATIONSHIP; MAXIMUM STRENGTH; PLASTIC BEHAVIOR; NANOCRYSTALLINE; MECHANISM; ALLOYS; NI;

D O I：

10.1103/PhysRevLett.124.125501

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present a theoretical model that predicts the peak strength of polycrystalline metals based on the activation energy (or stress) required to cause deformation via amorphization. Building on extensive earlier work, this model is based purely on materials properties, requires no adjustable parameters, and is shown to accurately predict the strength of four exemplar metals (fcc, bcc, and hcp, and an alloy). This framework reveals new routes for design of more complex high-strength materials systems, such as compositionally complex alloys, multiphase systems, nonmetals, and composite structures.

引用

页数：5

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