Surface modification of steel and cast iron to improve corrosion resistance in molten aluminium
Surface modification of steel and cast iron to improve corrosion resistance in molten aluminium
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DOI：
10.1016/j.surfcoat.2005.06.026
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发表时间：
2006-05
影响因子：
5.4
通讯作者：
D. Lou;O. M. Akselsen;M. Onsøien;J. K. Solberg;J. Berget
中科院分区：
文献类型：
--
作者：
D. Lou;O. M. Akselsen;M. Onsøien;J. K. Solberg;J. Berget
在本研究中，对双相22 Cr-5 Ni不锈钢、热作钢（AISI H13）和球墨铸铁的渗硼样品进行了熔融铝腐蚀试验，并以未渗硼的γ-TiAl样品作为参考。实验结果表明，腐蚀速率，表示在每平方厘米的试样每小时的体积损失，减少与渗硼的球墨铸铁和双相不锈钢，分别由16和20的因素。显然，在主要条件下，耐腐蚀性变得比TiAl更好。对于AISI H13工具钢，腐蚀速率降低了3倍。所涉及的腐蚀机制进行了讨论的扩散速率控制元素。
In the present investigation, molten aluminium corrosion tests have been performed on boronised samples of duplex 22Cr–5Ni stainless steel, hot work steel (AISI H13) and nodular cast iron, and on a non-boronised γ-TiAl sample as a reference. The experimental results show that the corrosion rate, as expressed in terms of volume loss per square centimetre of the specimen per hour, was reduced with boronising by a factor of 16 and 20 for the nodular cast iron and the duplex stainless steel, respectively. Apparently, the corrosion resistance becomes better than that of TiAl under the prevailing conditions. For the AISI H13 tool steel, the corrosion rate was reduced by a factor of 3. The corrosion mechanisms involved are discussed in terms of diffusion rate controlling elements.