Three-point bending test device for simulating corrosion fatigue of splash zone of ocean

A three-point bending and corrosion fatigue technology, which is applied in the field of metal material corrosion technology research, can solve the problems that the sample is not easy to fix, the operation is complicated, and the corrosive liquid is easy to overflow, etc., and the test results are accurate and reliable, and the effect of keeping clean

Active Publication Date: 2014-03-12
DALIAN UNIV OF TECH
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Problems solved by technology

This test process is not applicable to the three-point bending sample because the extensometer cannot be installed; in "An Electrolytic Cell Device for Electrochemical In-situ Measurement", a corrosion device for the three-point bending sample is designed, but Since the sample needs to be fixed on the testing machine, it is only suitable for small-sized three-point bending tests, and the corrosive liquid is easy to overflow; in "A Fixture for Corrosion Fatigue Test", only the specific details of the three-point bending test fixture are given. form, the corrosion box is not described in detail, and the sample is not easy to fix, and the operation is complicated
Therefore, it is generally difficult to simulate the corrosion fatigue behavior in the spray splash zone in the existing technology, especially the device for three-point bending specimens

Method used

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  • Three-point bending test device for simulating corrosion fatigue of splash zone of ocean

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Embodiment Construction

[0021] The present invention will be described in detail below in conjunction with accompanying drawing

[0022] A three-point bending test device for simulating corrosion fatigue in an ocean splash zone, consisting of a three-point bending test block 11, a main box 8 for fixing the three-point bending test block 11, an auxiliary box 9 for maintaining the test water level, and a seawater spray pipeline 16 for simulating wave splashing It is composed of a seawater circulation power plant that provides seawater flow;

[0023] The connection mode of the seawater circulation power plant is as follows: the seawater in the seawater supply tank 2 is pumped into the high seawater storage tank 5 through the water delivery pipeline and the micro water pump 3 installed in this section of the water delivery pipeline, and the seawater is stored from the high place The box 5 flows into the water inlet 81 of the main box 8 with the three-point bending test block 11 installed through the wate...

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Abstract

The invention relates to a three-point bending test device for simulating the corrosion fatigue of a splash zone of an ocean. The three-point bending test device comprises a three-point bending test block, a main box for fixing the three-point bending test block, an auxiliary box for keeping the test water level, a seawater spraying pipeline for simulating wave splashing, and a seawater circulating power device for providing power for seawater flowing. The three-point bending test device can not only guarantee that cracks are in impurity-free circulating seawater but also prevent seepage, is easy to operate, and integrates the functions of environmental protection, automation and intelligentization.

Description

technical field [0001] The invention belongs to the technical research field of metal material corrosion, and relates to a three-point bending test device for corrosion fatigue test in an ocean wave splash zone. Background technique [0002] Corrosion fatigue refers to the fracture phenomenon of metal materials caused by the synergistic effect of corrosive medium and alternating stress or pulsating stress. Corrosion fatigue of metal materials has become an important content in the field of corrosion science research. Engineering practice often causes major accidents and brings heavy losses to the national economy because components cannot withstand harsh corrosion and load conditions. From the perspective of safe, economical and rational use of metal materials, human beings urgently need to understand the knowledge of corrosion fatigue of metal materials, especially for the corrosion fatigue phenomenon and mechanism of some typical metal materials that have been widely used...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/36G01N3/56G01N17/00
Inventor 黄一洪波代娇荣梁永梅上官祎瑾吴智敏
Owner DALIAN UNIV OF TECH
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