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Paper Information

Journal:   JOURNAL OF TECHNOLOGY OF EDUCATION (JOURNAL OF TECHNOLOGY AND EDUCATION)   FALL 2008 , Volume 3 , Number 1; Page(s) 25 To 32.
 
Paper: 

EFFECT OF HOT WORK ON PROPERTIES OF NICKEL BASED IC-221M ALLOY

 
 
Author(s):  HADI M.*, KAMALI A.R., HADAVI S.M.
 
* ISFAHAN MALEK ASHTAR UNIVERSITY OF TECHNOLOGY, ISFAHAN, IRAN
 
Abstract: 

In this study, effect of hot work on microstructure and mechanical properties of nickel based alloy NiAl8Cr8MoZrB (IC-221M) was investigated. For this purpose, four types of hot work processes at 1000 and 1100oC with various apply strain were done. Also two types of two stage hot work processes were performed. Our results show that low strain rate hot working causes to reduction of eutectic regions in the microstructure and ordering parameter of crystalline structure and increasing high temperature mechanical properties of as-cast alloy. Finally, two stage hot pressing process on the basis of dynamic recrystallization mechanism leads to increasing mechanical properties of alloy at 1000oC.

 
Keyword(s): NICKEL ALUMINIDE, IC-221M ALLOY, HOT WORK, EUTECTIC PHASE, HIGH TEMPERATURE MECHANICAL PROPERTIES
 
References: 
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