Non-alloyed Ni<sub>3</sub>Al based alloys – preparation and evaluation of mechanical properties

The paper reports on the fabrication and mechanical properties of Ni3Al based alloy, which represents the most frequently used basic composition of nickel based intermetallic alloys for high temperature applications. The structure of the alloy was controlled through directional solidification. The s...

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Bibliographic Details
Main Authors: J. Malcharcziková, F. Chmelík, J. Pešička, M. Kursa, M. Pohludka
Format: Article
Language:English
Published: Croatian Metallurgical Society 2013-07-01
Series:Metalurgija
Subjects:
Online Access:http://hrcak.srce.hr/file/140927
Description
Summary:The paper reports on the fabrication and mechanical properties of Ni3Al based alloy, which represents the most frequently used basic composition of nickel based intermetallic alloys for high temperature applications. The structure of the alloy was controlled through directional solidification. The samples had a multi-phase microstructure. The directionally solidified specimens were subjected to tensile tests with concurrent measurement of acoustic emission (AE). The specimens exhibited considerable room temperature ductility before fracture. During tensile testing an intensive AE was observed.
ISSN:0543-5846
1334-2576