Metal treatment – Process of modifying or maintaining internal physical... – With measuring – testing – or sensing
Reexamination Certificate
2006-12-19
2006-12-19
Kastler, Scott (Department: 1742)
Metal treatment
Process of modifying or maintaining internal physical...
With measuring, testing, or sensing
C148S508000, C324S233000
Reexamination Certificate
active
07150798
ABSTRACT:
It is disclosed a method of determining the exposure temperature of Al and Cr of a γ/γ′ MCrAlY-coating after the use in a high temperature environment, the γ/γ′ MCrAlY-coating exhibiting a non-equilibrium γ/γ′-microstructure at a temperature lower than the temperature during operation and the depletion of chromium from the γ/γ′-MCrAlY-coating still allows the α-Cr phase to form. The coating conductivity and permeability by means of a multifrequency eddy current system is measured at different locations of the component and from the measured conductivity and permeability the exposure temperature of said different locations of the components is determined.
REFERENCES:
patent: 3528861 (1970-09-01), Elam et al.
patent: 3676085 (1972-07-01), Evans et al.
patent: 3754903 (1973-08-01), Goward et al.
patent: 4152223 (1979-05-01), Wallace et al.
patent: 4313760 (1982-02-01), Dardi et al.
patent: 4346137 (1982-08-01), Hecht
patent: 4419416 (1983-12-01), Gupta et al.
patent: RE32121 (1986-04-01), Gupta et al.
patent: 4585481 (1986-04-01), Gupta et al.
patent: 4643782 (1987-02-01), Harris et al.
patent: 4743514 (1988-05-01), Strangman et al.
patent: 4973445 (1990-11-01), Singheiser
patent: 5430376 (1995-07-01), Viertl
patent: 5759301 (1998-06-01), Konter et al.
patent: 5888451 (1999-03-01), Konter et al.
patent: 6201391 (2001-03-01), Burkhardt et al.
patent: 6534975 (2003-03-01), Beeck et al.
patent: 2004/0082069 (2004-04-01), Jiang et al.
patent: 3740478 (1989-01-01), None
patent: 1052505 (2000-11-01), None
“Non-Destructive Condition Assessment of Serviced MCrAIY Coatings”, Giampiero Antonelli, CESI, Milan. Italy, Dec. 2002, pp. 1-12.
“Qualification of a Frequency Scanning Eddy Current Equipment for Nondestructive Characterization of new and Serviced High-Temperature Coatings”, Antonelli, et al., Proceedings of ASME Turbo Expo 2001, Jun. 4-7, 2001, New Orleans, Louisiana, USA, pp. 1-8.
Antonelli Giampiero
Germerdonk Klaus
Schnell Alexander
Alstom Technology Ltd.
Buchanan & Ingersoll & Rooney PC
Kastler Scott
LandOfFree
Non-destructive testing method of determining the service... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Non-destructive testing method of determining the service..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Non-destructive testing method of determining the service... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3685707