Method for determining internal stresses in polycrystalline soli

Details Method for determining internal stresses in polycrystalline soli Method for determining internal stresses in polycrystalline soli

1985-02-08

1987-08-11

Krass, Errol A.

Boots, shoes, and leggings

364571, 378 72, 378 78, 73760, 73787, G01C 2500, G01N 2320, G01B 530

Patent

active

046866310

ABSTRACT:
Previous methods for determining internal stress in polycrystalline solids by X-ray diffraction techniques have required that the distance between the X-ray irradiated surface of the sample under investigation and the X-ray detection surface for the diffracted X-rays be known. According to the practice of this invention, stress measurement can be made without determining the sample to detector distance as a separate step. Two or more sets of detection surfaces, i.e., X-ray detector channels, are arranged around the incident X-ray beam, usually on opposite sides of the cone of diffracted X-rays from one another. The invention employs a calibration procedure which provides a set of calibration parameters, which, when used with X-ray stress equations, yields accurate internal stress measurement without the prior art requirement of determining the sample to detector distance.

REFERENCES:
patent: 3617705 (1971-11-01), Takano et al.
patent: 4042825 (1971-08-01), Ruud
patent: 4095103 (1978-06-01), Cohen et al.
patent: 4128762 (1978-12-01), Nagao et al.
patent: 4195349 (1980-03-01), Balkanli
patent: 4223388 (1980-09-01), Nishikawa
patent: 4288852 (1981-09-01), Holland
patent: 4337517 (1982-06-01), Nickel et al.
patent: 4399515 (1983-08-01), Gross
patent: 4426718 (1984-01-01), Hayashi et al.
patent: 4489425 (1984-12-01), Borgonovi
patent: 4561062 (1985-12-01), Mitchell

Affiliated with

Also associated with

Rating

Method for determining internal stresses in polycrystalline soli does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for determining internal stresses in polycrystalline soli, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for determining internal stresses in polycrystalline soli will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-407078