Research of the Boron Element on Corrosion Behavior of 1Cr17 Stainless Steel in 3.2%HCl+3.8%HNO3 Solution

Tie Ming Guo; Zhi Hui; Xue Li Nan; Chang Song Han; Zhong Jie Tang; Han Zhou

doi:10.4028/www.scientific.net/AMR.675.235

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 675Research of the Boron Element on Corrosion...

Research of the Boron Element on Corrosion Behavior of 1Cr17 Stainless Steel in 3.2%HCl+3.8%HNO3 Solution

Abstract:

Four groups of 1Cr17 stainless steel with boron quality score as 0ppm,16ppm, 22ppm and 28ppm were used to research their corrosion behavior by chemical immersion, electrochemical method (the tafel polarization curve method) at different temperature(25 °C, 40 °C) in 3.2%HCl＋3.8%HNO3 medium.The results show that at different temperature (25°C, 40°C)in3.2%HCl＋3.8%HNO3 medium, Corrosion kinetics law is different,with B element content increased,the immersion corrosion rate decreased; meanwhile, both of Soaked and electrochemical corrosion results show that the added Boron elements of the 1Cr17 stainless steel sample improves its resistance to general corrosion ,but its resistance to intergranular corrosion weakened , which can see by the corrosion morphology.

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Periodical:

Advanced Materials Research (Volume 675)

Pages:

235-239

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.675.235

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Online since:

March 2013

Authors:

Tie Ming Guo, Zhi Hui, Xue Li Nan, Chang Song Han, Zhong Jie Tang, Han Zhou

Keywords:

1Cr17 Stainless Steel, Boron, Corrosion Resistance, Hydrochloric Acid, Nitric Acid

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