Results from & years atmospheric exposure of 17 types of steel at 7 sites in China were summarized. The corrosion rates of the steels may all be described with the kenetic formular of D=Atn. The possibility of predicting long term corrosion behavior from

The corrosion tests in open air at seven test sites in China for nine years have been made for the zinc coatings electroplated by using traditional baths with and without cyanide additions. The corrosion resistances of the zinc coatings have been discuss

Corrosion potential shift with the change of relative humidity in atmosphere and cathodic polarization curves under thin electrolyte layers for copper, zinc and carbon steel were measured with kelvin probe method. It was shown that the cathodic limiting c

Meteorological data at the atmospheric corrosion test sites in China was colected and analysed. Changing regulations of the meteorological factors were discussed interms of their climate characteristics. Finally, the atmospheric corrosion test sites were

An atmospheric corrosion monitor(ACM) which consists of A3/Cu,T/Cu,08CuP/Cu or S/Cu couples has been used to study influences of atmospheric corrosion caused by various elements in atmosphere including pollutants of different salts, SO2 and atmospheric r

This paper describes the important relation between formula ingredients, processing and durability of several RPVC profiles for the frames of door and windows through accelerated weathering test. It is indicated that an acrylic impact modifier and a sulfu

In order to study the influence of microstructure on the exfoliation corrosion of 2024 aluminium alloy, four kinds of sample with different microstructure were prepared through different heat treatments. The corrosion behavior of the samples was studied b

The results obtained by GM(11) model analysis. exponent regression analysis and power regression analysis using test data of low alloy steels for one to four years, showed that all the three methods can be used to fairly well reproduced the given test dat

Atmospheric corrosion of carbon steel in acidic polluted atmosphere and marine environment was simulated by laboratory testing. The results indicated that the salt spray/damp heat composite testing shows good correlation to the marine environment.

In this paper, the electrochemical impedance spectroscopy (EIS) is employed to investigate the corrosion performance of two Al-Mg alloys (LF3M and LF11M) in 2.7% NaCl solutions with variation of PH. The results reveal that various corrosion states will

By regression analysis of the corrosion results of the LF6M aluminium-magnesium alloy fully immersed in seawater for 8 years, the corrosion data may be described with the following two formulas: (1) A = m' tn (2) Dmax = a+b logt with A represerting corro

8 years expose testing of Al-clad LF6M alloy has been made at the mean tide zone by Xiamen sea area. It was evident that localized corrosion occurred on the surface of the Al-clad LF6M alloy due to the exposure. SEM examinations also revealed that underne

Seven copper alloys were exposed in South China Sea for 8 years. Results show that the relationship between the average corrosion depth of copper alloys and the exposure time can be described by H=aTb and that the average corrosion rates for copper alloys

The dealloying corrosion process of copper alloys exposed in Qingdao seawater was characterized by using the methods of OM, SEM and EDXA. The corrosion behavior of the exposed alloys was discussed in terms of their microstructures. Following conclusions c

The relationship of corrosion resistance and antifouling behavior of 19 type copperalloys exposed in seawaters of Qingdao. Xiamen. Yulin of China for 1,2,4,8 years intervals was studied through analyzing the composition of corrosion films formed on the al

One year corrosion survey of a carbon steel has been performed at four typical sea areas in the country. In the paper the testing results were reported, the charactors of the splash zone corrosion of the steel was also discussed. Based on the environmenta

On the basis of corrosion data of 16 kinds of steels exposed in Qingdao, Xiamen and Yulin seawaters for 8 years, an expected reliable interval with the reliability of 95% for the corrosion depth may be deduced by statistical analysis of the data. In terms

This paper introduce neural network approach to study the non-linear reationshipbetween the physical and chemical properties and corrosion rate of carbon steel in soil from the collected corrosion data. The corrosion rate of carbon steel in soil can be pr

In this paper the factors analysis method is introduced to the field of regional soil corrosivity survey through some examples of analysis, the priciples and limits of application of the method are discussed.

In situ measurement of corrosion current of carbon steel, stainless steel, H62 brass and aluminium has been carried out with CMB-1510 protable intelligent corrosion rate meter in Shenyang soil test site. A well correlation between the corrosion current an

Corrosion behavior of 1Cr13, 1Cr18Ni9Ti, H62 and Ly11 alloys in acid soils was studied, the results show that corrosion rate of Ly11 alloy was almost 50 times larger than that of stainless steels. A rather good correlation between the corrosion rate and t

The corrosion results of 14 kinds of cables, including conventionval cable and optical cable and some relevant materials buried in different soils for 1-3 years at 7 sites in China are summerized. The corrosion Performance of cable jacket materials was c

Based on the in-site experiment in Dagang oil field onshore area, the corrosion of A3 steel in the region with high salt content, high H2O content and low resistivty is uniform corrosion, and corrosion rate is low. According to the result of cluster anal