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Enhancing General Corrosion Resistance of Biomedical High Nitrogen Nickel-Free Stainless Steel by Nitric Acid Passivation

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Yang Yixun 1,2   Wang Qingchuan 1   Li Jun 1,2   Tan Lili 1   Yang Ke 1  
文摘 A systematic study of nitric acid passivation was investigated to enhance the general corrosion resistance of biomedical high-nitrogen nickel-free stainless steels (HNSs). After passivation, the corrosion rate of HNS could dramatically reduce to 1/20 of the untreated in 37 °C 0.9 wt% NaCl solutions. Then, the passive film on HNS was analyzed by X-ray photoelectron spectroscopy. It was found that chromium enrichment in the passive film and nitrogen enrichment in the film/metal interface contributed to the improvement in general corrosion resistance of HNS.
来源 Acta Metallurgica Sinica(English Letters) ,2020,33(2):307-312 【核心库】
DOI 10.1007/s40195-019-00952-w
关键词 Stainless steel ; Nitric acid passivation ; General corrosion ; Passive film
地址

1. Institute of Metal Research, Chinese Academy of Sciences, Shenyang, 110016  

2. School of Materials Science and Engineering, University of Science and Technology of China, Shenyang, 110016

语种 英文
文献类型 研究性论文
ISSN 1006-7191
学科 金属学与金属工艺
基金 国家自然科学基金 ;  the Key Program of China on Biomedical Materials Research and Tissue and Organ Replacement ;  the Shenyang Key R&D and Technology Transfer Program
文献收藏号 CSCD:6662297

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