V Class Parts Solutions

MD&A now offers V class parts and repairs through the integration of PW Power Systems IGT division in San Antonio, Texas.

Our gas turbine parts service facility in San Antonio is an industry leader in V class components manufacturing and repairs. The facility has leading edge equipment and repair techniques with proven expertise.

Our enhanced gas turbine new parts use proprietary advanced technology. The improved designs of the components, based on extensive repair history of these OEM products, extend the service life by minimizing oxidation, creep and metal temperatures.

The improved designs address field distress issues including: optimized internal cooling to reduce metal temperature without increasing cooling air requirements; platform cooling to address platform thermal mechanical fatigue (TMF); modified geometry to reduce stresses that lead to cracking; blade tip cooling enhancements to improve repairability at overhaul; and refined placement of film cooling holes to address local areas of distress.

Model V94.3Ax - 1st, 2nd, 3rd, 4th Stage Blade

  V94.3Ax 1st Stage Blade Advantages:
• Manufactured using a proprietary single crystal nickel superalloy tailored for gas turbine parts
• The design uses a metallic bond coat applied by High Velocity Oxy-Fuel (HVOF)
• Utilizes a ceramic thermal barrier coating (TBC) top coat that reduces base metal temperature to provide superior protection against oxidation, coating spallation, and TMF cracking
• A vapor phase aluminide coating provides improved oxidation and corrosion resistance for the internal cooling passages
  V94.3Ax 2nd Stage Blade Advantages:
• Manufactured using a directionally solidified nickel superalloy tailored for gas turbine parts
• The design uses a metallic bond coat applied by HVOF and a TBC top coat providing superior protection against oxidation and TMF cracking
• For improved internal cooling passage oxidation and corrosion resistance, this part also incorporates an aluminide coating on the internal cooling passages 
  V94.3Ax 3rd Stage Blade Advantages:
• Manufactured using René 80 commercially available equiaxed nickel superalloy
• The design uses a metallic bond coat applied by HVOF and a TBC top coat providing superior protection against oxidation and corrosion
• For improved internal cooling passage oxidation and corrosion resistance, this part also incorporates an aluminide coating on the internal cooling passages
•  The design provides optimized internal cooling to reduce metal temperature without increasing cooling air requirements
  V94.3Ax 4th Stage Blade Advantages:
Manufactured using René 80 commercially available equiaxed nickel superalloy
• The design incorporates a chromide coating applied with a pack cementation process providing superior protection against corrosion 

Model V94.3Ax - 1st, 2nd, 3rd, 4th Stage Vane

  V94.3Ax 1st Stage Vane Advantages:
• Manufactured using a Mar-M-509 commercially available equiaxed cobalt superalloy
• Utilizes a proprietary metallic bond coat applied by HVOF and a TBC top coat
• The TBC reduces base metal temperature, provides superior protection against oxidation, coating spallation, and TMF cracking 
  V94.3Ax 2nd Stage Vane Advantages:
Manufactured using René 80 commercially available equiaxed nickel superalloy
• Utilizes a proprietary metallic bond coat applied by HVOF and a TBC top coat
• The TBC reduces base metal temperature, provides superior protection against oxidation, coating spallation, and TMF cracking
• For improved internal cooling passage oxidation and corrosion resistance, this part also incorporates a vapor deposited aluminide coating on the internal cooling passages 
  V94.3Ax 3rd Stage Vane Advantages:
• Manufactured using René 80 commercially available equiaxed nickel superalloy
• The design incorporates a metallic bond coat applied by Air Plasma Spray (APS) and a TBC top coat providing superior protection against oxidation and TMF cracking
• For improved internal cooling passage oxidation and corrosion resistance, this part also incorporates a vapor deposited aluminide coating on the internal cooling passages
   V94.3Ax 4th Stage Vane Advantages:
• Manufactured using René 80 commercially available equiaxed nickel superalloy
• The design incorporates a chromide coating applied with a pack cementation process providing superior protection against oxidation and corrosion  

V94.3Ax 1st and 4th Stage Turbine Guide Ring Segments

  V94.3Ax 1st and 4th Stage Turbine Guide Ring Segments Advantages:
• Manufactured using an IN-738 commercially available equiaxed nickel superalloy
• The design incorporates a metallic bond coating applied by APS and a ceramic abradable seal coating providing superior protection against oxidation 

 

Aug 16

Gas Turbine Parts Life Extension Clinic

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