Investigation of the Effect of Homogenization Treatment on Distribution of Alloying Elements, Microstructure and Hardness of Co-Al-W-Ti-Ta-Base Superalloy

Abstract

The aim of this study was to investigate the effect of temperature and time of homogenization treatment on the microstructure, distribution of alloying elements and hardness of the novel Co-based superalloy Co-7Al-7W-4Ti-2Ta. For this purpose, the specimens were first homogenized at 1250 and 1300 °C for 2, 4, 6 and 8 hours and then water-cooled. Subsequently, the specimens were subjected to hardness testing and microstructural examinations by optical and electron microscopy. The * یکینورتکلا تسپ ،تابتاکم لوئسم : : m_morakabati@mut.ac.ir D ow nl oa de d fr om ja m e. iu t.a c. ir at 4 :0 7 IR S T o n W ed ne sd ay D ec em be r 30 th 2 02 0 [ D O I: 10 .4 71 76 /ja m e. 39 .2 .2 16 21 ]