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

页码：473 / 476

页数：4

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