Engraving device and method for creating and measuring stress corrosion cracking on a flat coated test specimen
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United States of America
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Dec 21, 2021
Grant Date -
Nov 26, 2020
app pub date -
Oct 15, 2018
filing date -
Oct 15, 2018
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Abstract
The invention relates to a method for carrying out a test and measuring method on a flat test specimen (1), wherein a mechanical load is introduced into a test specimen surface (2) by means of a rotating engraving head (3) of an engraving device (4), wherein the engraving head (3) penetrates with a defined contact pressure at least into a layer system (5) applied to the test specimen (1), wherein the rotating engraving head (3) is moved along the test specimen surface (2) and relative to the test specimen (1) in order to create at least one engraving (6) on the test specimen surface (2) by plastic deformations and/or brittle chipping of the layer system (5), and wherein the at least one engraving (6) introduced into the test specimen surface (2) is measured using a photo-optical method in order to evaluate layer adhesion of the layer system (5) to the main body (11). The invention also relates to an engraving device (4) for carrying out such a method.
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