Mechanical properties of individual phases, deformation and fracture in mechanically alloyed Al-Al4C3 composite

被引：4
|
作者：
Besterci, Michal
Velgosova, Oksana
Pesek, Ladislav
机构：
[1] Slovak Acad Sci, Inst Mat Res, Kosice 04353, Slovakia
[2] Tech Univ Kosice, Fac Met, Dept Nonferrous Mat & Waste Treatment, Kosice 04200, Slovakia
[3] Tech Univ Kosice, Fac Met, Dept Mat Sci, Kosice 04200, Slovakia
来源：
INTERNATIONAL JOURNAL OF MATERIALS & PRODUCT TECHNOLOGY | 2007年 / 28卷 / 3-4期
关键词：
dispersion strengthened materials; mechanical alloying; mechanical properties; phases fracture mechanism; SEM analysis;
D O I：
10.1504/IJMPT.2007.013089
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Using a Depth Sensing Indentation technique (DSI), the Martens hardness HM, indentation modulus E-IT and deformation work W for Al matrix and Al4C3 particles have been measured. It has been shown that the hardness of Al4C3 particles is 5-7 times higher than the hardness of matrix. The change in fracture for the Al-12Al(4)C(3) system was investigated and analysed at different temperatures and strain rates. With increasing tensile load local cracks, are formed by rupture of large particles and by decohesion of smaller particles from the matrix. Further increase of load leads to the crack growth by coalescence of cavities.
引用
收藏
页码：448 / 467
页数：20
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