Patent · US Expired

Compressor for turbine and gas turbine

US6092989A · kind A · utility

6Cited by
17References
4Claims
0Family size

Assignee

Inventors

Key dates

Filing dateNov 25, 1998
Grant dateJul 25, 2000
Priority date
Expiry dateNov 25, 2018

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10S60/909
  • WIPO fieldMaterials, metallurgy
  • WIPO sectorChemistry

Abstract

A compressor for a gas turbine, comprises a rotor including a plurality of rotor parts, and blades for a plurality of stages implanted in the rotor parts, the rotor part in which the blades for at least two of the stages are implanted is made of a Ni--Cr--Mo--V low alloy steel, and the Ni--Cr--Mo--V low alloy steel has substantially an entire bainite microstructure comprising, in weight percent, C of 0.15-0.40%, Si not more than 0.1%, Mn not more than 0.5%, Ni of 1.5-2.5%, Cr of 0.8-2.5%, Mo of 0.8-2.0%, V of 0.1-0.35% and the balance being substantially Fe.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.