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Titanium Steam Turbine Blading

Workshop Proceedings Palo Alto, California, 9-10 November 1988

  • 1st Edition - July 31, 1990
  • Latest edition
  • Editor: R. I. Jaffee
  • Language: English

Application of titanium alloys to the long last stage and L-1 stage of low-pressure steam turbines has been in development for more than 30 years and now appears to be a commercial… Read more

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Description

Application of titanium alloys to the long last stage and L-1 stage of low-pressure steam turbines has been in development for more than 30 years and now appears to be a commercial reality. Titanium blades are used in steam transition L-1 row because they are immune to pitting corrosion by the corrosive early condensates at the Wilson line. A disadvantage of titanium alloys is their low damping capacity, which requires blade designs that maximize mechanical and aerodynamic damping. Protection is not required in the L-1 row due to the water droplet erosion resistance of titanium alloys but the last stage rows operating at supersonic tip speeds require the use of erosion shields.

Readership

For manufacturers, researchers, and users of steam and gas turbines worldwide.

Table of contents

(partial) Design and Application of Titanium Blades. Long-term experience and development with titanium. Super titanium blades for advanced steam turbines. Development of 40-inch long blade of titanium alloy for low-pressure last stage of steam turbine. Manufacture of Titanium Blades. Optimization of microstructure and texture of Ti-6A1-4V alloy blades. Influence of surface treatment on fatigue strength of Ti-6A1-4V. Refining and microstructure of Ti-6A1-4V steam turbine blade billet by rolling. Manufacturing processes for titanium blade forgings at Boehler. Precision forging long titanium blades for steam turbines. Properties and Characteristics of Titanium Blades. Properties of Ti-6A1-4V turbine blade forgings. Characteristics of titanium alloy 40-inch last stage blade of steam turbine. Material aspects of 40-inch long titanium alloy blades for steam turbines. Protection from erosion of the leading edge of titanium blades. Erosion resistance of titanium alloys for steam turbine blades. Water droplet erosion of titanium alloy steam turbine blading. Issues and Conclusions.

Product details

  • Edition: 1
  • Latest edition
  • Published: July 31, 1990
  • Language: English

About the editor

RJ

R. I. Jaffee

Affiliations and expertise
Electric Power Research Institute, Palo Alto, CA, USA

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