Structure-property correlations in nanocrystalline Al-Zr alloy composites

被引：21

作者：

Rittner, MN ^{[1
]}

Weertman, JR ^{[1
]}

Eastman, JA ^{[1
]}

机构：

[1] ARGONNE NATL LAB, DIV MAT SCI, ARGONNE, IL 60439 USA

来源：

ACTA MATERIALIA | 1996年 / 44卷 / 04期

关键词：

NANOMETER-SIZED CRYSTALS; MECHANICAL-PROPERTIES; BEHAVIOR; TEM; MICROSTRUCTURE; NICKEL;

D O I：

10.1016/1359-6454(95)00303-7

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A study of the structure, grain size stability and Vickers microhardness of nanocrystalline aluminum-zirconium alloy composites was conducted. Samples were synthesized by the inert gas condensation process with electron beam evaporation. Transmission electron microscope examinations of the samples were performed at room and elevated temperatures. The behavior of the microstructures of the samples with time and temperature was investigated as a function of specimen composition. Vickers microhardness data were evaluated at room temperature in as-produced and polished compacted specimens. The local chemical composition of individual microhardness indents and average values of the grain size and porosity level were determined for a number of samples. Correlations among these microstructural variables and hardness were determined using multiple regression techniques.

引用

页码：1271 / 1286

页数：16

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