Nanocrystalline material with anomalous modulus of resilience and springback effect

被引：18

作者：

Darling, K. A. ^{[1
]}

Kale, C. ^{[2
]}

Turnage, S. ^{[2
]}

Hornbuckle, B. C. ^{[1
]}

Luckenbaugh, T. L. ^{[1
]}

Grendahl, S. ^{[1
]}

Solanki, K. N. ^{[2
]}

机构：

[1] Weap & Mat Res Directorate, Aberdeen Proving Ground, MD 21001 USA

[2] Arizona State Univ, Sch Engn Matter Transport & Energy, Tempe, AZ 85287 USA

来源：

SCRIPTA MATERIALIA | 2017年 / 141卷

基金：

美国国家科学基金会;

关键词：

Nanocrystalline; Springback; Modulus of resilience; Flexural strain; MECHANICAL-PROPERTIES; TA; STRENGTH; METALS; COPPER;

D O I：

10.1016/j.scriptamat.2017.07.012

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Stability of nanocrystalline microstructural features allows structural materials to be synthesized and tested in ways that have heretofore been pursued only on a limited basis. Here, we demonstrate using quasi-static compression and three point bend tests that, in a stabilized nanocrystalline metal with tailored solute concentrations, i.e., NC-Cu-3 at.%Ta, extraordinary properties such as ultrahigh hardness along with anomalus modulus of resilience and springback effects can be manifested. Such effects influence a wide range of materials response including elastic energy absorption, damping, fatigue and wear. The present study, therefore, represents a pathway for designing highly resilient materials for everyday applications. Published by Elsevier Ltd on behalf of Acta Materialia Inc.

引用

页码：36 / 40

页数：5

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