Effect of thermal exposure on the microstructure and hardness of a γ-TiAl alloy

被引：0

作者：

Moskal, G ^{[1
]}

Rodak, K ^{[1
]}

机构：

[1] Silesian Tech Univ, Dept Mat Sci, PL-40019 Katowice, Poland

来源：

APPLIED CRYSTALLIGRAPHY | 2004年

关键词：

D O I：

10.1142/9789812702913_0043

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

The aim of the present study is to determine the effects of long-term exposure, up 1380h to a temperature of the range 800 degrees C-950 degrees C in air, on the stability of microstructure and properties of TiAl alloy. The evolution of microstructure after long-term annealing has been investigated for a Ti48Al2Cr2Nb alloy. Long-term annealing was performed in the range 23-1380h at 800 degrees C-950 degrees C. The alloys annealed at 800 degrees C did not show much change, whereas prolonged annealing at 900 degrees C and 950 degrees C produced significant fragmentation of alpha(2) lamellae and formation of gamma grains.

引用

页码：229 / 232

页数：4

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