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et al. Chinese Science Bulletin | Jan 2009 | vol. 54 | no. ? | ?-?

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A R T I C L E S

Title: Short-term exposure of low-alloyed steels in 1 Qinghai

2 Author: LI QiaoXia 1, SUN XiaoLing&WANG ZhenYao 2*

3 Units : 1Environmental Corrosion Centre, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China;

4 2

School of Physics,Peking University, Beijing 100871, China

5 Abstract: The rusts formed on carbon steel and weathering steel exposed in Qinghai Salt Lake at-

6 mosphere for 6 months were characterized by X-ray diffraction (XRD), infrared transmission spec-

7 troscopy (IRS), scanning electron microscopy (SEM), electron probe micro analyzer (EPMA) and elec-

8 trochemical polarization techniques. The two kinds of steels showed the similar corrosion rate, corro-

9 sion product composition and electrochemical polarization behavior.（摘要中不能出现参考文献序号.）

10 Keywords: atmospheric corrosion, carbon steel, weathering steel, XRD, EPM(关键词：5～8个)

11 Carbon steel and weathering steel as important structural materials are widely used in buildings, bridges, towers, and 12 vehicles, etc. [1,2]. These equipments are mainly operated under atmospheric environment. Particles and dust in the 13 air often induce the corro

14 1 Experimental

15 Test specimens were cut from commercially availableQ235 carbon steel and Corten A weathering steel and their 16 compositions are given in Table 1. The coupons(100 mm×50 mm×5 mm) and electrode samples 17

18 2 Results and discussion

19 All the exposed samples were completely covered by corrosion products after exposure for 6 months[3]. And a rela-20 tively uniform dark brown rust layer was developed on the upward and downward surfaces of weathering 21

22 3 Conclusions

23 In the early exposure (for 6 months) in salt lake atmosphere, weathering steel and carbon steel showed analogous cor-24 rosion behavior[4-7]. For the same kind of steel, the corrosion degree of upward surface was similar to that of down-25 ward surface. The rusts on both kinds of steels 26

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28 *Corresponding author (email: )

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Table 1Compositions of carbon steel and weathering steel (%)

Corten A 0.09 0.3 0.35 0.081 0.005 0.48 0.27 0.28 0.037

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Figure 1Metallographic cross sections of the rusted samples. (a) Upward surface of carbon steel; (b) downward surface of carbon steel.

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Knowledgment

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This work was supported by the National Natural Science Foundation of China (51002090) and the Outstanding Young Scientist Research Award Fund of 41

Shandong Province (BS2010CL028).

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References

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3Polito V S. Calmodulin and calmodulin inhibitors: Effect on pollen germination and tube growth. In: Mulvshy D L, Ottaviaro E, eds. Pollen: Biology 46

and Implication for Plant Breeding. New York: Elsevier, 1983. 53–60

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4Balasubramanian R. Role of nanophase oxides in short-term atmospheric corrosion of structural steels. Dissertation for Doctoral Degree. Norfolk, V A: 48

Old Dominion University, 2003. 4

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5Phillips N A. The Nested Grid Model. NOAA Technical Report NWS22. 1979

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6Zhang W P. Experiment Apparatus of Diffraction Imaging. China Patent, 02290557.X, 2003-12-03

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7Wang D L, Zhu J, Li Z K, et al. User Manual for QTKMapper Version 1.6, 1999

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注意事项：

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1. 表格和图件随文中出现顺序编排或统一放在参考文献后;

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2. 送审稿件的参考文献可以采用“著者年制”也可以采用“顺序编码制”进行编排，但是录用稿件的参考56

文献格式应按照“顺序编码制”用阿拉伯数字编排.

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2 et al. Chinese Science Bulletin | Ja 2009 | vol. 54 | no. ? | ?-?