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Author Gabb, T. P. ♦ Telesman, J. ♦ Kantzos, P. T. ♦ Garg, A.
Source SpringerLink
Content type Text
Publisher Kluwer Academic Publishers-Plenum Publishers
File Format PDF
Copyright Year ©2007
Language English
Subject Domain (in DDC) Natural sciences & mathematics ♦ Chemistry & allied sciences ♦ Technology ♦ Engineering & allied operations
Subject Keyword Superalloy ♦ Disk ♦ Failure ♦ Quality Control, Reliability, Safety and Risk ♦ Structural Mechanics ♦ Mechanics ♦ Characterization and Evaluation of Materials ♦ Tribology, Corrosion and Coatings ♦ Materials Science
Abstract Increasing service temperatures of gas turbine engines can improve performance and efficiency. Therefore, advanced alloys are being considered for higher-temperature applications than previously encountered. To support these higher-temperature applications, failure mode assessments on specimens tested in laboratory test machines can help in understanding prospective failure scenarios. The effects of temperature on tensile, creep, low-cycle fatigue, and fatigue crack growth failure modes were evaluated for an advanced powder metallurgy disk superalloy ME3. Conventional tests were performed at temperatures up to 815 °C on specimens extracted from supersolvus heat treated disks. The failure modes were compared with increasing temperature for each test type. Fractographic evaluations indicate the failure modes were shifted by increasing temperature, and eventually became environment-assisted, surface crack initiated failures.
ISSN 15477029
Age Range 18 to 22 years ♦ above 22 year
Educational Use Research
Education Level UG and PG
Learning Resource Type Article
Publisher Date 2007-03-01
Publisher Place New York
e-ISSN 18641245
Journal Journal of Failure Analysis and Prevention
Volume Number 7
Issue Number 1
Page Count 10
Starting Page 56
Ending Page 65

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Source: SpringerLink