High Temperature Oxidation Lifetime Modelling of thin-walled components

Conference · Sat Jun 01 00:00:00 EDT 2019

OSTI ID:1546534

Pillai, Rishi  ^[1]; Dryepondt, Sebastien  ^[1]; Pint, Bruce  ^[1]

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1. ORNL

High temperature material solutions for future power generation applications require longer component lifetimes at higher temperatures to improve durability and efficiency. From a research and development point of view, the lifetimes are too long for experimental verification. Thus, accurate lifetime models are needed. Examples are provided where modeling is being applied to lifetime prediction of thin-walled NiCr wrought alloy components. Specific laboratory experiments have been conducted for alloy X at 900°-950°C in dry air and air with water vapor with cycle times from 1 to 500 h. Along with microstructure characterization, comparisons are made between experiment and model predictions. The eventual goal is to predict both oxidation and mechanical behavior.

• Research Organization: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC05-00OR22725
• OSTI ID: 1546534
• Resource Relation: Conference: ASME Turbo Expo 2019: Turbomachinery Technical Conference & Exposition - Phoenix, Arizona, United States of America - 6/17/2019 8:00:00 AM-6/21/2019 8:00:00 AM
• Country of Publication: United States
• Language: English