Effect of Precipitation Aging Conditions on Microstructural Refurbishment in Cast Nickel Base Superalloy GTD-111

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F26316919%3A_____%2F15%3A%230000664" target="_blank" >RIV/26316919:_____/15:#0000664 - isvavai.cz</a>

Result on the web

<a href="http://www.scientific.net/AMR.1127.79" target="_blank" >http://www.scientific.net/AMR.1127.79</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.4028/www.scientific.net/AMR.1127.79" target="_blank" >10.4028/www.scientific.net/AMR.1127.79</a>

Result language

angličtina

Original language name

Effect of Precipitation Aging Conditions on Microstructural Refurbishment in Cast Nickel Base Superalloy GTD-111

Original language description

This research study has an aim to evaluate and investigate the effect of various rejuvenation heat treatments on microstructure of long-term serviced cast nickel base superalloy grade GTD-111 used as turbine blade material. The evaluated reheat treatmentprograms consist of solution treatment at 1195°C for 2, 3, 4 and 5 hours then following with primary aging at 1120?C for 2 hours and secondary aging at 845°C for 25, 50, 75 and 100 hours, respectively. All reheat treated microstructures were examined and analyzed by SEM and image analyzer. From all obtained results, it was found that the most proper solution treatment duration was 5 hours to provide the most uniform microstructural characteristics, which consist of the uniform distribution of very dense gamma prime particles in the matrix as well as its highest hardness value. Furthermore, when increasing the duration at secondary aging at 845?C over than 25 hours (which is according to standard heat treatment), such microstructure pro

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

JP - Industrial processes and processing

OECD FORD branch

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Project

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Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2015

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Advanced Materials Research

ISSN

1662-8985

e-ISSN

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Volume of the periodical

1127

Issue of the periodical within the volume

26.10.2015

Country of publishing house

CH - SWITZERLAND

Number of pages

6

Pages from-to

79-84

UT code for WoS article

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EID of the result in the Scopus database

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