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The importance of phase composition for corrosion resistance and thermal oxidation behavior of gas-borided layer produced on nickel alloy
Corrosion Reviews ( IF 3.2 ) Pub Date : 2021-06-01 , DOI: 10.1515/corrrev-2020-0081
Natalia Makuch 1 , Piotr Dziarski 1
Affiliation  

Gas boriding was used to produce the borided layer containing a mixture of chromium and nickel borides on the Inconel ® 600-alloy. The borided sample was characterized by a higher corrosion potential (−0.953 V) than the non-borided sample (−1.005 V). The corrosion current density was significantly lower for the borided sample. The oxidation at 1000 °C for 24 h caused the formation of different oxides on the surface of the borided sample. Simultaneously, the presence of nickel and chromium borides was confirmed by XRD analysis after the oxidation test. It was concluded, that the gas boriding could be an effective barrier against corrosion and oxidation of Inconel ® 600-alloy.

中文翻译:

相组成对镍合金气体渗硼层耐蚀性和热氧化行为的重要性

气体硼化用于在 Inconel ® 600 合金上生产包含硼化铬和硼化镍混合物的硼化层。硼化样品的特征在于比非硼化样品 (-1.005 V) 更高的腐蚀电位 (-0.953 V)。硼化样品的腐蚀电流密度显着降低。在 1000°C 下氧化 24 小时导致在硼化样品表面形成不同的氧化物。同时,氧化试验后通过XRD分析证实了镍和铬硼化物的存在。得出的结论是,气体渗硼可以有效地防止 Inconel ® 600 合金腐蚀和氧化。
更新日期:2021-05-30
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