Corrosion product film wear property and corrosion electro-chemistry test device

A technology of corrosion products and wear performance, applied in measuring devices, testing wear resistance, weather resistance/light resistance/corrosion resistance, etc., can solve the limitation of the electrochemical reaction process of wear resistance performance, lack of corrosion product film wear performance and electrochemical behavior of the test device, etc.

Inactive Publication Date: 2009-07-08
UNIV OF SCI & TECH BEIJING
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

In addition, there are simultaneous measurement devices for corrosion and wear (Wang Antai, Tao Lin, Yang Yanyi, a simultaneous measurement device for corrosion and wear, State Intellectual Property Office, patent number: 87214788), and dynamic measurement devices for the interaction between corrosion and wear (Huang Weijiu, Liu Ming, Li Zhaofeng, A dynamic measurement device for the interaction between corrosion and wear, State Intellectual Property Office, Patent No.: 20

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  • Corrosion product film wear property and corrosion electro-chemistry test device
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  • Corrosion product film wear property and corrosion electro-chemistry test device

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Embodiment Construction

[0013] A sample 12 with a corrosion product film was prepared, and the sample 12 with a corrosion product film was weighed with an electronic analytical balance with an accuracy of 0.1 mg. figure 1 and image 3 As shown, the prepared sample 12 with a corrosion product film and the electrochemical sample 25 with a corrosion product film are respectively fixed in the wear sample groove 27 and the electrochemical sample groove 32 on the sample holder 13 . figure 2 As shown, the electrochemical sample 25 is drawn out through the electrochemical sample wire 21, and the platinum wire 26 is put into the platinum wire guide groove 30 outside the electrochemical sample 25, and is drawn out by the platinum wire wire 20 as the saturated sweetener of the reference electrode. The mercury electrode 18 is placed in the salt bridge 17, and the electrochemical sample 25, the platinum wire 26, and the calomel electrode 18 form a three-electrode system. figure 1 As shown, the sample holder 13 ...

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Abstract

The invention relates to a device for testing abrasion property and corrosion electrochemistry of a corrosion product film, and belongs to the technical field of corrosion simulation experiment and electrochemistry test. The device consists of main parts such as an electric motor, a sealing cover, a rotary disc, a friction block, a sample table, a three-electrode electrochemistry test system, an external electrochemistry test instrument, a thermostatic water bath, and the like; and the rotary friction block of the rotary disc abrades a sample, an electrochemistry test adopts a three-electrode system, and the electrochemistry sample as a working electrode, a platinum wire as a reference electrode surrounding the periphery of the electrochemistry sample and a saturated calomel electrode to form the three-electrode system. The device can measure the abrasion resistant property of the formed corrosion product film, and simultaneously measure electrochemical parameters for the samples covered by the corrosion product film during abrasion to obtain electrochemical parameter values at different time of abrasion of the corrosion product film.

Description

technical field [0001] The invention belongs to the technical field of corrosion simulation experiments and electrochemical testing, and in particular provides an electrochemical testing device for corrosion product films under wear conditions. It is suitable for testing the electrochemical parameters of corrosion products formed in different corrosive environments during the wear process, and can measure the wear resistance of corrosion product films. In addition, the device can realize the simulation of different corrosion environments. Background technique [0002] The complete and dense corrosion product film can slow down corrosion and protect the base metal. However, in actual use, the corrosion product film on the surface of the base metal is often subject to wear and tear, and it is easy to thin or even crack, which makes the base metal corrode faster. Increase, such as truck compartments, bridge decks, ship decks, inner walls of pipes, etc. The wear performance of...

Claims

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Application Information

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IPC IPC(8): G01N3/56G01N17/02
Inventor 柳伟路民旭贾月彩杨善武
Owner UNIV OF SCI & TECH BEIJING
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