Metal corrosion isothermal isochron and test method

Abstract

The invention provides a metal corrosion isothermal isochrone and testing method thereof, belonging to the material failure and protection technical field, which mainly solves the determination problem of the corrosion calendar life of the metal structure in application environment. The metal corrosion isothermal isochrone can be saw in the abstract attached drawing, the horizontal scale represents the corrosion solution concentration d and the longitudinal scale represents the corrosion damage amount D. Because the d is equal to 0, then the D is equal to 0, thus the isothermal isochrone is a zeroaxial right line. The physical meaning of the isothermal isochrone is that: the time and temperature hold the line and the corrosion damage D shows a linear increase along with the solution concentration d, during the corrosion testing process of each solution concentration of metal. On the linear line, the temperature of each point is equal to the time of each point, thus the line is called as isothermal isochrone. The isothermal isochrone is found to directly induce a computation model of metal calendar life in application environment; and also performs the equivalent conversion into the application result in the application environment from the high-concentration corrosion test result.

Description

Technical field [0001] The invention belongs to the technical field of material failure and protection. technical background [0002] There are many studies on metal corrosion failure at home and abroad, most of which are on the microcosmic mechanism of corrosion failure, failure mode, failure influencing factors, failure law and protection methods, etc., but the research on the method of determining the calendar life of metal corrosion failure is less There are few, and there are few successful methods available for engineering application. The present invention is researched on the determination method of metal corrosion calendar life. Contents of the invention [0003] The present invention finds a kind of figure 1 Isothermal isochrones for metal corrosion. attached figure 1 The abscissa in is the corrosion solution concentration d (the use environment d=1, the test environment d can take a solution concentration much greater than 1), and the ordinate is the corrosi...

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Problems solved by technology

[0002] There are many studies on metal corrosion failure at home and abroad, most of which are on the microcosmic mechanism of corrosion failure, failure mode, failure influencing factors, failure law and protection methods, etc., but the research on the method of determining the calendar life of metal corrosion failure is less Fewer, and there are not many successful methods available for engineering application

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