V Series Parts Solutions

MD&A now offers V series 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 series 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.

Siemens® Gas Turbine SGT5-4000F
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
• An aluminide coating provides improved oxidation and corrosion resistance for the internal cooling passages
• Added platform features improve part life

  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 topcoat 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
• Added Tip cooling features added to improve part life 
  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 topcoat 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
• Added Tip cooling features added to improve part life
• An aluminide coating provides improved corrosion resistance for the internal passage

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 oxidation and corrosion resistance, this part also incorporates an 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 topcoat providing superior protection against oxidation and TMF cracking
• For oxidation and corrosion resistance, this part also incorporates an aluminide coating on the internal cooling passages
   V94.3Ax 4th Stage Vane Advantages:
• Manufactured using René 80 commercially available equiaxed nickel superalloy
• For oxidation and corrosion resistance, this part also incorporates an aluminide coating on the internal cooling passages

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

  V94.3Ax 1st 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
   V94.3Ax 4th Stage Turbine Guide Ring Segments Advantages:
• Equiaxed cast superalloy

Read our case study on V94.3A4 2nd Stage Blade Extended to 75,000 EOH in our Gas Turbine Parts Life Extension Clinic.

See all our Gas Turbine Services offered.

Nov 08

Steam Turbine Reheat Stop Valves Restoration

Learn More
Resource Center
Jan 08

2019 Steam Turbine Alignment Seminar

Learn More
All Upcoming Seminars

Sign Up for MD&A’s Insight Newsletter

Get our turbine-generator expert’s case studies and tips!

By submitting this form, you are granting: Mechanical Dynamics & Analysis LLC, 19 British American Blvd., Latham, NY, 12110, permission to email you. You may unsubscribe via the link found at the bottom of every email. You can view our full privacy policy at https://www.mdaturbines.com/privacypolicy/.

Mechanical Dynamics & Analysis LLC   |   19 British American Blvd., Latham, NY 12110   |   P (518) 399-3616   |   F (518) 399-3929