The influence of Cr, Al, Co, Fe and C on negative creep of Waspaloy-Reference-Cited by-同舟云学术

The influence of Cr, Al, Co, Fe and C on negative creep of Waspaloy

Published:2021-02-01 Issue:2 Volume:112 Page:90-97
ISSN:2195-8556
Container-title:International Journal of Materials Research
language:en
Short-container-title:

Author:

Firlus Konstantin¹,Völkl Rainer¹,Gabel Johannes²,Glatzel Uwe¹

Affiliation:

1. Metals and Alloys, University of Bayreuth , Bayreuth , Germany

2. MTU Aero Engines AG , Munich , Germany

Abstract

Abstract Negative creep using precision dilatation experiments is investigated on a broad variety of single, dual and multiphase nickel-based superalloys. Pure nickel and dilute binary nickel-based alloys show no signs of negative creep. However, with higher contents of Cr and Al and in highly alloyed ternary and multicomponent nickel-based alloys negative creep is observed. Short range ordering of Cr and/ or Al are identified to cause negative creep at 550 °C. Carbon additions leading to retarded carbide precipitation or transformation can enhance negative creep.

Publisher

Walter de Gruyter GmbH

Subject

Materials Chemistry,Metals and Alloys,Physical and Theoretical Chemistry,Condensed Matter Physics

Link

https://www.degruyter.com/document/doi/10.1515/ijmr-2020-7980/pdf

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