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Gas Turbine Engine Project Materials Joint Test Protocol. Document Principally Prepared By Jerry Schell GE Aircraft Engines Additional Input From GTE OEMs and DoD Repair Depots. Component Alloys. Seven alloys selected for technical evaluation IN718, INC901, AM355, A286, 17-4PH, 4340, 9310.

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gas turbine engine project materials joint test protocol

Gas Turbine Engine ProjectMaterials Joint Test Protocol

Document Principally Prepared By

Jerry Schell

GE Aircraft Engines

Additional Input From GTE OEMs

and DoD Repair Depots

component alloys
Component Alloys

Seven alloys selected for technical evaluation

IN718, INC901, AM355, A286, 17-4PH, 4340, 9310

coating compositions to be investigated in project
Coating Compositions to beInvestigated in Project

HVOF ProcessAir Plasma Spray Process

WC/17Co WC/17Co

Cr3C2/(20)NiCr Co/28Mo/8Cr/2Si*

Co/28Mo/8Cr/2Si*

Co/28Mo/17Cr/3Si**

* Tribaloy 400

** Tribaloy 800

materials jtp structure
Materials JTP Structure

FIVE MAJOR TASKS:

1. Spray process optimizations

2. Fatigue

3. Wear and friction

Fretting tests, carbon seal tests

4. Corrosion tests

5. Producibility tests

- Stripability

- Assembly/Disassembly

current status of materials jtp
Current Status of Materials JTP
  • Document finalized and being distributed for signatures
  • Acquisition of all raw materials completed and delivered to Metcut Research in Cincinnati
  • PO issued for fabrication of 1300 fatigue coupons; work in progress
  • PO issued to Hitemco on Long Island for coatings optimization work; Jerry Schell coordinating effort on HVOF Tribaloy 800 and Cr3C 2/NiCr, and Plasma Spray WC/Co and Tribaloy 400; first series of tests conducted in August 2001
  • Overall schedule established for phased execution of sample preparation, coating, and testing
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