NON-ALLOYED Ni3Al BASED ALLOYS - PREPARATION AND EVALUATION OF MECHANICAL PROPERTIES

被引：0

作者：

Malcharczikova, J. ^{[1
]}

Chmelik, F. ^{[2
]}

Pesicka, J. ^{[2
]}

Kursa, M. ^{[1
]}

Pohludka, M. ^{[1
]}

机构：

[1] VSB TU Ostrava, Fac Met & Mat Engn, RMSTC, Ostrava, Czech Republic

[2] Charles Univ Prague, Dept Phys Mat, Prague, Czech Republic

来源：

METALURGIJA | 2013年 / 52卷 / 03期

关键词：

Ni3Al based alloys; directional solidification; tensile test; acoustic emission; fracture; SUPERALLOYS;

D O I：

暂无

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

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.

引用

页码：309 / 312

页数：4

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