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Metallurgical capabilities & methodologies

Engineering disciplines built for extreme thermal stress

Test high-temperature alloys, predict creep-fatigue interaction limits, and obtain calibrated constitutive model subroutines ready for deployment into FEA solvers.

TMF-01
Thermomechanical fatigue testing
Combined cyclic mechanical strain and synchronous dynamic temperature sweeps simulating high-stress turbine startup and shutdown transients.
Testing parameters & envelope
Thermal range20°C to 1150°C
Phase anglesIn-phase (IP) & Out-of-phase (OP)
Loading frame100 kN Servo-hydraulic MTS
AtmosphereHigh-vacuum & inert argon
Standard compliance
ASTM E2368ISO 12106ISO 12111
Deliverables:Validated hysteresis loops, thermal strain baselines, and life-fraction curves.
Direct laboratory test data
Request protocol
ICP-02
Isothermal creep strain measurement
High-precision long-duration dwell testing with sub-micron capacitive extensometry under constant static and cyclic dwell loads.
Testing parameters & envelope
Hold durationsUp to 5,000+ hours continuously
Temperature stability±1.0°C isothermal gradient
Strain resolution0.05 µm optical & capacitive
Stress levels50 MPa to 1,200 MPa
Standard compliance
ASTM E139ASTM E292ISO 204
Deliverables:Tertiary creep rupture times, Larson-Miller master curves, and steady-state strain rates.
Direct laboratory test data
Request protocol
DMM-03
Damage mechanics & FEA modeling
Continuum damage mechanics (CDM) algorithms and viscoplastic constitutive subroutines calibrated against empirical alloy coupon data.
Testing parameters & envelope
Solvers supportedAbaqus (UMAT), ANSYS (USERMAT)
Phenomena modeledViscoplasticity & oxidation interaction
MicrostructureGrain boundary cavitation kinetics
Validation metricMulti-axial stress triaxiality
Standard compliance
ASME BPVC VIII-2API 579-1 / ASME FFS-1RCC-MRx
Deliverables:Compiled user subroutines, calibrated material parameter matrices, and stress-strain verification decks.
Direct laboratory test data
Request protocol
RLA-04
Remaining-life & failure assessment
Root-cause metallurgical investigation pairing scanning electron microscopy fractography with creep-fatigue cumulative damage summations.
Testing parameters & envelope
Analysis methodsLinear damage rule & strain-range partitioning
Inspection toolsSEM fractography & EBSD mapping
Target componentsTurbine blades, headers & combustor liners
Turnaround timeRapid-dispatch failure triage available
Standard compliance
ASTM E606ASTM E1820BS 7910
Deliverables:Definitive metallurgical failure root cause, safe inspection intervals, and operational life extension plans.
Direct laboratory test data
Request protocol

Need a custom specimen geometry or multi-axial load envelope?

Our metallurgical scientists design bespoke fixture tooling and customized thermal control protocols for non-standard test specimens.

Discuss test specifications
Methodology Benchmark

Compare alloy evaluation pathways

Select the assessment strategy that fits your component lifecycle stage, sample availability, and regulatory certification requirements.

ASTM E2714 / E606
Physical Testing
Direct servo-hydraulic load frame stress testing at isothermal elevated temperatures.
Specimen Count

5-12 machined coupon samples per alloy heat condition

Thermal Range

Ambient to 1,150°C in vacuum or inert argon chambers

Cycle Limits

Up to 10^7 cycles (dwell periods from 1s to 24hr)

Timeline

3 to 6 weeks per complete isotherm test matrix

Standards

ASTM E139, ASTM E2714, ASTM E606, ISO 12111

Deliverables

Validated stress-strain hysteresis loops & SEM fractography

Request scope
Recommended Framework
Recommended Standard
Hybrid Validation
Targeted baseline physical tests calibrated against predictive multi-scale damage FEA.
Specimen Count

2-4 physical calibration specimens + CAD geometry

Thermal Range

Full multi-gradient thermal cycles (-50°C to 1,200°C)

Cycle Limits

Unlimited full-mission flight & operational duty profiles

Timeline

10 to 14 business days with iterative stress tuning

Standards

ASTM E2714, ASME Section III Div 5, API 579 / FFS-1

Deliverables

Calibrated FEA damage models & life assessment report

Request scope
Chaboche / Lemaitre
Constitutive Modeling
Crystal plasticity and continuum damage mechanics FEA for complex geometry parts.
Specimen Count

Zero destructive coupons; calibrated material law inputs

Thermal Range

Dynamic transient thermal profiles across arbitrary ranges

Cycle Limits

Continuous mission profile simulations without physical limit

Timeline

3 to 7 business days per component geometry revision

Standards

ASME Boiler & Pressure Vessel Code Div 5, R5 Issue 4

Deliverables

Multi-axial creep-fatigue FEA subroutines & risk plots

Request scope

Need a customized validation protocol for proprietary alloys?

Our metallurgical engineers configure non-standard hold-time parameters, specialized inert environments, and custom constitutive subroutines.

Consult engineering team
Metallurgical Engagement & Testing Intake

Initiate your alloy assessment

Submit custom specimen geometries, select standard ASTM testing suites, or schedule a direct consultation with our metallurgy team.

Bespoke Protocols
Submit Technical Specifications
For non-standard specimen geometries, extreme thermal cycle profiles, and proprietary superalloy formulations.

Included Capabilities

  • Custom load-frame fixture evaluation
  • Multi-axial stress state parameters
  • Confidential NDA submission pipeline
Upload Test Protocol
ASTM Standards
Request Standard Test Plans
Verified testing routines under ASTM E606, ASTM E139, and ASTM E2714 with expedited laboratory turnaround.

Included Capabilities

  • Strain-controlled low cycle fatigue
  • Isothermal creep rupture matrices
  • Calibrated MTS servo-hydraulic frames
Select Test Suite
Diagnostic Intake
Schedule Diagnostic Session
Direct consultation with metallurgical scientists to investigate component fracture, void coalescence, or lifespan extension.

Included Capabilities

  • Fractography & SEM surface review
  • Multi-scale damage modeling review
  • Actionable engineering risk reports
Book Engineering Call
High-Temperature MTS Servohydraulic Load Frames (up to 1200°C)
Preliminary Assessment Feedback in 48h
Standardized ASTM & ISO Test Compliance

Specialized metallurgical engineering consultancy providing experimental testing, failure analysis, and multi-scale damage modeling for metallic alloys in extreme thermal-mechanical environments.

ASTM E2714· Creep-Fatigue Testing
ASTM E606· Strain-Controlled Fatigue
ISO 12106· Axial Strain Fatigue
FEA MatModel· Multi-Scale Damage

Confidentiality & Data Integrity Statement

All test specimens, metallurgical microphotographs, finite-element damage formulations, and lifetime prediction reports are managed under strict non-disclosure protocols and secure laboratory air-gapped data retention architectures.

256-Bit Vault Storage
ITAR / EAR Compliant
Calibrated MTS Rig

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Laboratory Inquiries

Direct technical evaluation requests to our senior materials science team.

Materials Assessment Laboratory, High-Temperature Testing Division
Available for R&D engineering consultations
info@crepfat-metallurgy.com
Request Material Assessment
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