The Progress of the theory on mixed potential is reviewed and the advance in this field in our Laboratory is introduced briefly. An equation to describe the relationship between the corrosion current density and the polarization resistance of a corroding

Oxidation and hot corrosion of different TBCs at separately 1050℃ and 900℃ were studied. Results of experiments show that the addition of YSZ in the middle layer can increase the surface area of Ni16Cr8Al particles, therefore decreases the oxidation resis

A new erosion corrosion resistant brass was developed by adding small amount of B、Fe、Ni、Mn and Si elements in HAl77 2A aluminum brass. The microstructure, mechanical properties, corrosion resistance, corrosive wear and erosion corrosion resistance of the

Four kinds of aluminum alloy anodes containing different RE contents were cast. Microscope and scanning electron microscope (SEM) were used for analyzing their microstructure such as grain size of the amount segregative phase and composition of aluminium

The passive film formed on a stainless steel F28 with low segregation in the urea reactor solution was studied by means of XPS and AES, in comparison with that of Sanicro28 alloy. The results indicated that the reduce in segregation of P.S and Si causes t

By means of MET,SEM and EPMA,overcorrosion morphology on the surface of 6063 aluminum extrusion,which often appears during the caustic washing process of pretreatment of anodizing,was observed ,and corrosion products were examined. Overcorrosion mechanism

Electroless nickel plating can be conducted at room temperature in solutions containing dye as photosensitizer under illumination . Effects of intensity and wavelength of incident light, concentration of photosensitizer, nickel ion and hypophosphite on th

The regression formula for erosive wear of structural ceramic materials was acquired by using the multi factor orthgonal experiments. Combined with single factor experiments, Analyses of the erosive wear characteristics of three typical structural ceramic

The positron lifetime in amorphous NiCrFeSiB alloy with and without hydrogen charging was measured to understand the interaction between hydrogen and point defects in amorphous structure. Free volume and vacancy group were found in the alloy as main defec

It was discovered that corrosion resistance of the epoxy antirust paint could be improved and rust could be conversed by adding vegetable tannic acid in the paint. However, the action of the synthetic tannic acid was not apparent. The mechani

The wear resisting ceramic layer was prepared by microarc oxidation on the surface of high speed rotating components of textile machines. This ceramic layer has a compact structure and controllable thickness, and exhibits a fine adhesion, as well as good

Burst of steam pipeline in an oil field was analysized. Corrosion was found on the inner surface of the cracked pipe.There are decarburizition and intergranular cracks in the steel matrix. High hydrogen content was measured in the corroded steel matrix. I

In pipeline construction, conventional welding technique affects anticorrosion performance due to the destruction of anticorrosive coating on pipeline inner wall, whereas the use of HP (high pressure) Snap Joint can ensure the integrity of anticorrosive