1. Allister James – November 19, 2015
Materials for Harsh Service Conditions: The Industrial Gas Turbine Perspective

2. Turbine Inlet Temperature oC
System Considerations for Industrial Gas Turbines
Business drivers/
Customer requirements
1956
1966
1976
1986
1996
2006
2016
800
1200 D F G
Commercial Operation
Turbine Inlet Temperature oC
1800
1000
1400
1600
Natural Gas Engines
IGCC Engines
Cost
First cost
Life cycle cost
Performance
Plant power
Plant efficiency
Capabilities
Emissions
Operational flexibility
Regulatory compliance
Upgradeability
Reliability, availability
Time-to-market

3. The Potential & Challenges of New Materials
Specific strength
Temperature
Source: Plansee

4. Materials Systems: Thermal and Environmental Protection
TGas
TSubstrate
TSurface
Thermal Insulation
(lower thermal
conductivity)
TBC
TCooling air
Bond Coat
TBond Coat
Base Material
TBC adhesion,
Environmental resistance

5. Component Considerations
Cost
Material cost
Processing cost
Yield rates
Availability of revert
Time
Availability – Material
Availability – data
Processing time
Design rules & guidelines
Performance
Strength
Fatigue resistance
Creep resistance
Toughness
Temperature capability
Environmental
Compatibility (coating)
Interfaces (CTE, Wear)
Superalloys: The utility gas turbine perspective
International Symposium on Superalloys 2000

6. Concurrent Engineering
Materials
Systems approach
Property balance
Availability
Property data
Design
Structural
Aero
Heat transfer
Design guidelines
Service
Field feedback
Repair / replace
Design for Service
Manufacturing
Primary processing
Secondary processing
Inspection

7. Thank you
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