Device and method for simulating corrosion fatigue test in marine atmospheric environment

A corrosion fatigue, marine and atmospheric technology, applied in the direction of weather resistance/light resistance/corrosion resistance, measuring devices, instruments, etc., can solve problems such as inability to evaluate metal corrosion fatigue performance

Pending Publication Date: 2020-10-30
NANJING IRON & STEEL CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this simulated accelerated corrosion test is difficult to combine with the fatigue test, and cannot evaluate the corrosion fatigue performance of metals in simulated marine and atmospheric environments.

Method used

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  • Device and method for simulating corrosion fatigue test in marine atmospheric environment
  • Device and method for simulating corrosion fatigue test in marine atmospheric environment

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Experimental program
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Embodiment Construction

[0021] Below, combined with figure 1 , figure 2 And embodiment the present invention is described in further detail.

[0022] Specifically, when the present embodiment adopts the corrosion fatigue test device in the simulated marine atmosphere environment for the test, the fatigue sample 11 is first processed by wire cutting, and the sample 11 can be processed by the national standard or related standards. Then the processed sample 11 was processed, polished to 2000# step by step with SiC sandpaper, degreased with acetone, cleaned with absolute ethanol, and then dried for use. The two ends of the sample 11 were sealed with silica gel, and only the middle 10 was exposed. Working section with a length of ~20mm.

[0023] Install the sealed fatigue sample 11 in the test chamber 13 with cuboid structure made of plexiglass through a soft rubber stopper, and use silica gel to seal the sample 11 and the rubber stopper and the through hole between the rubber stopper and the test cha...

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Abstract

The invention discloses a device and method for simulating a corrosion fatigue test in a marine atmospheric environment. The device can combine a salt spray test with a fatigue test, and can be used for evaluating the corrosion fatigue performance of a metal material in the marine atmospheric environment. The device is simple in structure and convenient to mount and dismount. The temperature of atest cavity is controlled by arranging a water bath device, the humidity of the test cavity is controlled by arranging a humidifying device, and the temperature and humidity of the test cavity are monitored in real time by arranging a temperature and humidity monitoring device, so that adjustable, controllable and real-time monitoring of key environmental factors is realized, and the corrosion fatigue performance in various marine atmospheric environments can be simulated.

Description

technical field [0001] The invention relates to a test device and a test method, in particular to a corrosion fatigue test device and a method for simulating a marine atmospheric environment. Background technique [0002] Corrosion and fatigue of marine engineering structural materials, especially marine high-strength steel, are the main failure modes of marine engineering structures. Especially for large engineering structures such as offshore platforms and cross-sea bridges, the performance degradation and life assessment of metal materials under the dual effects of harsh marine environments and fatigue loads have attracted more and more attention in the industry. The traditional single corrosion resistance performance or fatigue life evaluation can no longer meet the demand, and the corrosion fatigue performance evaluation in corrosive environment is becoming more and more important. [0003] The key to corrosion fatigue performance or life assessment lies in the accurat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N17/00G01N3/00
CPCG01N3/00G01N17/002G01N17/006G01N2203/0067G01N2203/0073G01N2203/0226G01N2203/024G01N2203/0298
Inventor 马宏驰范益杨文秀蔡佳兴施小凡赵晋斌李晓刚程学群
Owner NANJING IRON & STEEL CO LTD
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