Nanocrystalline material with anomalous modulus of resilience and springback effect

被引：17
|
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
收藏
页码：36 / 40
页数：5
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