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| CORROSION RESISTANCE OF WELDING JOINTS OF 310L（NAG）SS IN BOILING NITRIC ACID\par CONTAINING Cr6+ IONS |
| WANG Wei1; LUO Ming2; ZHANG Qifu1;LIU Wei2 |
1. China Iron and Steel Research Institute Group; Beijing 100081
2. School of Materials Science and Engineering; University of Science and Technology Beijing; Beijing 100083 |
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Abstract orrosion resistance of welding joints of 310L(NAG) stainless steel in boiling nitric acid with different Cr6+ ions contents was investigated. It is shown that Cr6+ ions can remarkably enhance corrosion attack on welding joints, and with intergranular attack in heat affected zone and weld metal. The weld metal was suffered more severely corrosion attack, but in pure boiling nitric acid, welding joints exhibit strong corrosion resistance.
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Received: 23 November 2007
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Corresponding Authors:
WANG Wei
E-mail: wwswy@263.net
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