The observation of tensile superplasticity in nanocrystalline materials

被引：43
|
作者：
Mishra, RS [1 ]
Valiev, RZ [1 ]
Mukherjee, AK [1 ]
机构：
[1] UFA STATE AVIAT TECH UNIV, INST ADV MAT PHYS, UFA 450000, RUSSIA
来源：
NANOSTRUCTURED MATERIALS | 1997年 / 9卷 / 1-8期
基金：
美国国家科学基金会;
关键词：
D O I：
10.1016/S0965-9773(97)00103-7
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The flow behavior of nanocrystalline Pb-62Sn and Zn-22Al alloys is reported Tensile superplasticity has been observed at room temperature in the nanocrystalline Pb-Sn alloy and at 393 K in the nanocrystalline Zn-Al alloy. The strain rare sensitivity value is similar to 0.45 for Pb-Sn alloy at room temperature, indicating a grain boundary sliding mechanism. The elongation at a strain rate of 4.8x10(-4) s(-1) is similar to 300% for the Pb-Sn alloy. (C) 1997 Acta Metallurgica Inc.
引用
收藏
页码：473 / 476
页数：4
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