Preliminary communication

Materials Properties of Modifeied Ni-Based Alloy

L. Kraus
J. Zrník
P. Wangyao
S. Němeček

Abstract

The thermomechanical processing of NiMoCr solid solution nickel base superalloy is the way to considerably influence the grain size. As uniform coarse grain size increases the creep strength and crack growth resistance. In the work, the processing to achieve uniform recrystallized grain structure with variation of thermomechanical parameters is investigated. The creep behavior of the alloy after various hot working conditions is determined. The results of creep tests showed that creep characteristics such as strain rate and lifetime were greatly dependent on the initial hot working conditions and annealing parameters.

Keywords

Ni-based alloy; hot working; annealing; recrystallization; structure; creep

Hrčak ID:

11926

URI

https://hrcak.srce.hr/11926

Publication date:

4.5.2007.

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