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FRP (GFRP) since its birth , its excellent mechanical properties and corrosion resistance , is widely used in aviation, aerospace and marine areas to become the world's largest production uses the most widely used composite materials . Increasingly widespread due to their excellent corrosion resistance , GFRP marine areas , but due to the complexity of the corrosion mechanism of GFRP materials multifactorial synergy , the lack of long-term corrosion accumulation data , etc. constraints GFRP in marine areas application In this paper, from a variety of marine corrosion environmental factors elect two categories ( physical factors and chemical factors ) were analyzed and summarized in the marine environment , GFRP occur in the form of corrosion and the course . Focus on factors such as the difference in temperature , humidity , seawater concentration and penetration through the simulation of natural environmental testing and accelerated testing of understanding of the law and mechanism of corrosion , corrosion of materials can be studied . Different temperatures in the simulation of natural environmental testing , design , the seawater concentrations analog accelerated test ; considering the aging effects of sunlight on GFRP test the GFRP sample irradiation ultraviolet soaked in seawater ; consider fluid erosion impact material life testing , design given flow rate , scheduled a grit particle diameter of the fluid , the sample fluid erosion test . Material morphology , mechanical properties , microstructure changes further analysis of the evolution of corrosion mechanism and performance ; relationship between life and residual strength according to the median of aging , the establishment of the law of accelerated life model and life prediction model ; in the accumulation on the basis of the data , can provide data and theoretical basis for the corrosion test, material and engineering design . The test results show that the seawater conditions , GFRP In addition to the visible appearance of the change , the thermal stability , surface on the Barcol hardness , tensile strength and flexural strength as a whole showed a downward trend, and irradiating ultraviolet light , the performance is further decreased . Under the conditions of the given flow rate , the flow along with the fine particles cause erosion of the GFRP scour . Median aging of the relationship between life and residual strength GFRP able to better describe the natural aging and accelerated aging of the law .
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