Corrosion Behavior of Cr<sub>19</sub>Fe<sub>22</sub>Co<sub>21</sub>Ni<sub>25</sub>Mo<sub>13</sub> Alloy in 1M Nitric Acid and 1M Hydrochloric Acid Solutions

Corrosion Behavior of Cr<sub>19</sub>Fe<sub>22</sub>Co<sub>21</sub>Ni<sub>25</sub>Mo<sub>13</sub> Alloy in 1M Nitric Acid and 1M Hydrochloric Acid Solutions

The present work studied the microstructures of Cr<sub>19</sub>Fe<sub>22</sub>Co<sub>21</sub>Ni<sub>25</sub>Mo<sub>13</sub> alloy, and tested the polarization properties in deaerated 1M nitric acid and 1M hydrochloric solutions at different...

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Autores principales: Chun-Huei Tsau, Po-Min Chen
Formato: article
Lenguaje:EN
Publicado: MDPI AG 2021
Materias:
Cr<sub>19</sub>Fe<sub>2</sub><sub>2</sub>Co<sub>21</sub>Ni<sub>2</sub><sub>5</sub>Mo<sub>13</sub>
microstructure
corrosion
polarization
Crystallography
QD901-999
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spelling oai:doaj.org-article:5e84263ffba947b0b89e8f78a51f446f2021-11-25T17:17:44ZCorrosion Behavior of Cr<sub>19</sub>Fe<sub>22</sub>Co<sub>21</sub>Ni<sub>25</sub>Mo<sub>13</sub> Alloy in 1M Nitric Acid and 1M Hydrochloric Acid Solutions10.3390/cryst111112892073-4352https://doaj.org/article/5e84263ffba947b0b89e8f78a51f446f2021-10-01T00:00:00Zhttps://www.mdpi.com/2073-4352/11/11/1289https://doaj.org/toc/2073-4352The present work studied the microstructures of Cr<sub>19</sub>Fe<sub>22</sub>Co<sub>21</sub>Ni<sub>25</sub>Mo<sub>13</sub> alloy, and tested the polarization properties in deaerated 1M nitric acid and 1M hydrochloric solutions at different temperatures. The alloy was processed by an argon atmosphere arc-melting. Results indicated that the microstructure of Cr<sub>19</sub>Fe<sub>22</sub>Co<sub>21</sub>Ni<sub>25</sub>Mo<sub>13</sub> alloy was a dendritic one. The dendrites of Cr<sub>19</sub>Fe<sub>22</sub>Co<sub>21</sub>Ni<sub>25</sub>Mo<sub>13</sub> alloy were an FCC structure, and the interdendrites of Cr<sub>19</sub>Fe<sub>22</sub>Co<sub>21</sub>Ni<sub>25</sub>Mo<sub>13</sub> alloy were a eutectic structure with two phases of FCC and simple cubic (SC). The Cr<sub>19</sub>Fe<sub>22</sub>Co<sub>21</sub>Ni<sub>25</sub>Mo<sub>13</sub> alloy had better corrosion resistance compared with commercial 304 stainless steel in both deaerated 1M HNO<sub>3</sub> and 1M HCl solutions. The corrosion types of Cr<sub>19</sub>Fe<sub>22</sub>Co<sub>21</sub>Ni<sub>25</sub>Mo<sub>13</sub> alloy in both of 1M HNO<sub>3</sub> and 1M HCl solutions were uniform corrosion.Chun-Huei TsauPo-Min ChenMDPI AGarticleCr<sub>19</sub>Fe<sub>2</sub><sub>2</sub>Co<sub>21</sub>Ni<sub>2</sub><sub>5</sub>Mo<sub>13</sub>microstructurecorrosionpolarizationCrystallographyQD901-999ENCrystals, Vol 11, Iss 1289, p 1289 (2021)
institution DOAJ
collection DOAJ
language EN
topic Cr<sub>19</sub>Fe<sub>2</sub><sub>2</sub>Co<sub>21</sub>Ni<sub>2</sub><sub>5</sub>Mo<sub>13</sub>
microstructure
corrosion
polarization
Crystallography
QD901-999
spellingShingle Cr<sub>19</sub>Fe<sub>2</sub><sub>2</sub>Co<sub>21</sub>Ni<sub>2</sub><sub>5</sub>Mo<sub>13</sub>
microstructure
corrosion
polarization
Crystallography
QD901-999
Chun-Huei Tsau
Po-Min Chen
Corrosion Behavior of Cr<sub>19</sub>Fe<sub>22</sub>Co<sub>21</sub>Ni<sub>25</sub>Mo<sub>13</sub> Alloy in 1M Nitric Acid and 1M Hydrochloric Acid Solutions
description The present work studied the microstructures of Cr<sub>19</sub>Fe<sub>22</sub>Co<sub>21</sub>Ni<sub>25</sub>Mo<sub>13</sub> alloy, and tested the polarization properties in deaerated 1M nitric acid and 1M hydrochloric solutions at different temperatures. The alloy was processed by an argon atmosphere arc-melting. Results indicated that the microstructure of Cr<sub>19</sub>Fe<sub>22</sub>Co<sub>21</sub>Ni<sub>25</sub>Mo<sub>13</sub> alloy was a dendritic one. The dendrites of Cr<sub>19</sub>Fe<sub>22</sub>Co<sub>21</sub>Ni<sub>25</sub>Mo<sub>13</sub> alloy were an FCC structure, and the interdendrites of Cr<sub>19</sub>Fe<sub>22</sub>Co<sub>21</sub>Ni<sub>25</sub>Mo<sub>13</sub> alloy were a eutectic structure with two phases of FCC and simple cubic (SC). The Cr<sub>19</sub>Fe<sub>22</sub>Co<sub>21</sub>Ni<sub>25</sub>Mo<sub>13</sub> alloy had better corrosion resistance compared with commercial 304 stainless steel in both deaerated 1M HNO<sub>3</sub> and 1M HCl solutions. The corrosion types of Cr<sub>19</sub>Fe<sub>22</sub>Co<sub>21</sub>Ni<sub>25</sub>Mo<sub>13</sub> alloy in both of 1M HNO<sub>3</sub> and 1M HCl solutions were uniform corrosion.
format article
author Chun-Huei Tsau
Po-Min Chen
author_facet Chun-Huei Tsau
Po-Min Chen
author_sort Chun-Huei Tsau
title Corrosion Behavior of Cr<sub>19</sub>Fe<sub>22</sub>Co<sub>21</sub>Ni<sub>25</sub>Mo<sub>13</sub> Alloy in 1M Nitric Acid and 1M Hydrochloric Acid Solutions
title_short Corrosion Behavior of Cr<sub>19</sub>Fe<sub>22</sub>Co<sub>21</sub>Ni<sub>25</sub>Mo<sub>13</sub> Alloy in 1M Nitric Acid and 1M Hydrochloric Acid Solutions
title_full Corrosion Behavior of Cr<sub>19</sub>Fe<sub>22</sub>Co<sub>21</sub>Ni<sub>25</sub>Mo<sub>13</sub> Alloy in 1M Nitric Acid and 1M Hydrochloric Acid Solutions
title_fullStr Corrosion Behavior of Cr<sub>19</sub>Fe<sub>22</sub>Co<sub>21</sub>Ni<sub>25</sub>Mo<sub>13</sub> Alloy in 1M Nitric Acid and 1M Hydrochloric Acid Solutions
title_full_unstemmed Corrosion Behavior of Cr<sub>19</sub>Fe<sub>22</sub>Co<sub>21</sub>Ni<sub>25</sub>Mo<sub>13</sub> Alloy in 1M Nitric Acid and 1M Hydrochloric Acid Solutions
title_sort corrosion behavior of cr<sub>19</sub>fe<sub>22</sub>co<sub>21</sub>ni<sub>25</sub>mo<sub>13</sub> alloy in 1m nitric acid and 1m hydrochloric acid solutions
publisher MDPI AG
publishDate 2021
url https://doaj.org/article/5e84263ffba947b0b89e8f78a51f446f
work_keys_str_mv AT chunhueitsau corrosionbehaviorofcrsub19subfesub22subcosub21subnisub25submosub13suballoyin1mnitricacidand1mhydrochloricacidsolutions
AT pominchen corrosionbehaviorofcrsub19subfesub22subcosub21subnisub25submosub13suballoyin1mnitricacidand1mhydrochloricacidsolutions
_version_ 1718412532938440704

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