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| The Heat Treatment and the Corrosive Prevention of Bronz |
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| 中国科学技术大学 |
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Abstract This paper presents an analytical study on two ternary Cu-Sn-Pb systems forged by using the Chinese traditional casting technique with difference in the amount of tin 15%. We had some of these copper alloys heat?鄄ed under different temperatures, then kept all the heated and unheated samples under an acid and chlorine-rich environment for several days.With the combined use of XRD analysis and metallographic examination, corrosion resistance of copper alloys was carefully discussed. The delta phase decomposed or diminished while the alpha phase recrystallized. When a proper temperature was chosen for reheating, the delta phase was found eliminated and the intergranular structure changed again. This experiment indicates that by doing so the corrosion resistance of copper alloys can be greatly improved, which in return helps controlling the outbreak of bronze disease.
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Received: 26 July 2006
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