Study on Corrosion Resistance of 00Cr13Ni7Co5Mo4W Maraging Stainless Steel in Seawater

Abstract:

The seawater corrosion resistance performances of 00Cr13Ni7Co5Mo4W maraging stainless steel were contrastively investigated by using electrochemical measurements and chemical immersion tests. The results show that breakdown potential of specimen in aging-state is reduced due to R phase precipices during aging. The difference between breakdown potential and protection potential of maraging stainless steel is little, and the restorability of the passive film is strong with small-scale shallow pits. After solution treated at 1100°C for 1h followed by aged 490°C for 8h,the breakdown potential and the annual corrosion rate of 00Cr13Ni7Co5Mo4W maraging stainless steel were 230 mV and 1.5091µm/a , respectively, showing a good resistance to seawater corrosion.

• Periodical: Applied Mechanics and Materials (Volume 274)
• Pages: 402-405
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.274.402
• Online since: January 2013
• Authors: Yue Jiang, Ying Ying Ai, Qi Ting Wang
• Keywords: Maraging Stainless Steel, Pitting, Polarization Curve, Seawater Corrosion

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DOI: 10.5006/1.3583880

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