Method of predicting remaining lifetime of metal material

Details Method of predicting remaining lifetime of metal material Method of predicting remaining lifetime of metal material

1987-10-16

1988-09-06

Myracle, Jerry W.

Measuring and testing

Specimen stress or strain, or testing by stress or strain...

Stress or strain history of a specimen without application...

G01N 2100

Patent

active

047683830

ABSTRACT:
Disclosed is a method of predicting the remaining lifetime of a metal material, wherein the shapes of grains of the metal material are quantitatively measured to obtain variations in the shapes of the grains, and the remaining lifetime of the metal material is predicted on the basis of the variations. In accordance with the present invention, it is possible to statistically arrange the variations in the shapes of the grains by measuring such variations sequentially in time.

REFERENCES:
patent: 2462374 (1949-02-01), Firth

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