Development of Fe-11Al-xMN alloy steel on cryogenic temperatures

This research is focused on increasing the reliability of Fe-11Al-Mn by combining the properties of Mn and the superiority of Fe-Al-C under cryogenic temperature. Three Fe-11Al-Mn alloys with compositions of 15 wt % Mn (F15), 20 wt % Mn (F20), and 25 wt % Mn (F25) were investigated. The cryogenic pr...

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Autores principales:	Ratna Kartikasari, Adi Subardi, Andy Erwin Wijaya
Formato:	article
Lenguaje:	EN RU UK
Publicado:	PC Technology Center 2021
Materias:	fe-11al-mn microstructure mechanical characteristics impact corrosion resistance cryogenic temperature Technology (General) T1-995 Industry HD2321-4730.9
Acceso en línea:	https://doaj.org/article/afd536930f4b460e93c7f2c93a7bc029
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spelling	oai:doaj.org-article:afd536930f4b460e93c7f2c93a7bc0292021-11-04T14:16:48ZDevelopment of Fe-11Al-xMN alloy steel on cryogenic temperatures1729-37741729-406110.15587/1729-4061.2021.243236https://doaj.org/article/afd536930f4b460e93c7f2c93a7bc0292021-10-01T00:00:00Zhttp://journals.uran.ua/eejet/article/view/243236https://doaj.org/toc/1729-3774https://doaj.org/toc/1729-4061This research is focused on increasing the reliability of Fe-11Al-Mn by combining the properties of Mn and the superiority of Fe-Al-C under cryogenic temperature. Three Fe-11Al-Mn alloys with compositions of 15 wt % Mn (F15), 20 wt % Mn (F20), and 25 wt % Mn (F25) were investigated. The cryogenic process uses liquid nitrogen in a temperature range of 0–196 °C. Hardness testing using the Vickers method and SEM was used to analyze the microstructure. X-ray diffraction (XRD) testing was conducted to ensure the Fe-11Al-Mn alloy phase and corrosion testing was carried out using the three-electrode cell polarization method. With the addition of Mn, the Vickers hardness of the Fe-11Al-Mn alloy decreased from 331.50 VHN at 15 wt % to 297.91 VHN at 25 wt %. The value of tensile strength and fracture elongation values were 742.21 MPa, 35.3 % EI; 789.03 MPa, 41.2 % EI; and 894.42 MPa, 50.2 % EI, for F15, F20, and F25, respectively. An important factor for improving the performance of cryogenic materials is the impact mechanism. The resulting impact toughness increased by 2.85 J/mm2 to 3.30 J/mm2 for F.15 and F25, respectively. The addition of the element Mn increases the corrosion resistance of the Fe-11Al-Mn alloy. The lowest corrosion rate occurs at 25 % wt Mn to 0.016 mm/year. Based on the results, the F25 alloy has the highest mechanical and corrosion resistance of the three types of alloys equivalent to SS 304 stainless steel. The microstructure of Fe-11Al-Mn alloy was similar between before and after cryogenic temperature treatment, this condition showed that the microstructure did not change during the process. From the overall results, the Fa-11Al-Mn alloy is a promising candidate for material applications working at cryogenic temperatures by optimizing the Mn contentRatna KartikasariAdi SubardiAndy Erwin WijayaPC Technology Centerarticlefe-11al-mnmicrostructuremechanical characteristicsimpactcorrosion resistancecryogenic temperatureTechnology (General)T1-995IndustryHD2321-4730.9ENRUUKEastern-European Journal of Enterprise Technologies, Vol 5, Iss 12(113), Pp 60-68 (2021)
institution	DOAJ
collection	DOAJ
language	EN RU UK
topic	fe-11al-mn microstructure mechanical characteristics impact corrosion resistance cryogenic temperature Technology (General) T1-995 Industry HD2321-4730.9
spellingShingle	fe-11al-mn microstructure mechanical characteristics impact corrosion resistance cryogenic temperature Technology (General) T1-995 Industry HD2321-4730.9 Ratna Kartikasari Adi Subardi Andy Erwin Wijaya Development of Fe-11Al-xMN alloy steel on cryogenic temperatures
description	This research is focused on increasing the reliability of Fe-11Al-Mn by combining the properties of Mn and the superiority of Fe-Al-C under cryogenic temperature. Three Fe-11Al-Mn alloys with compositions of 15 wt % Mn (F15), 20 wt % Mn (F20), and 25 wt % Mn (F25) were investigated. The cryogenic process uses liquid nitrogen in a temperature range of 0–196 °C. Hardness testing using the Vickers method and SEM was used to analyze the microstructure. X-ray diffraction (XRD) testing was conducted to ensure the Fe-11Al-Mn alloy phase and corrosion testing was carried out using the three-electrode cell polarization method. With the addition of Mn, the Vickers hardness of the Fe-11Al-Mn alloy decreased from 331.50 VHN at 15 wt % to 297.91 VHN at 25 wt %. The value of tensile strength and fracture elongation values were 742.21 MPa, 35.3 % EI; 789.03 MPa, 41.2 % EI; and 894.42 MPa, 50.2 % EI, for F15, F20, and F25, respectively. An important factor for improving the performance of cryogenic materials is the impact mechanism. The resulting impact toughness increased by 2.85 J/mm2 to 3.30 J/mm2 for F.15 and F25, respectively. The addition of the element Mn increases the corrosion resistance of the Fe-11Al-Mn alloy. The lowest corrosion rate occurs at 25 % wt Mn to 0.016 mm/year. Based on the results, the F25 alloy has the highest mechanical and corrosion resistance of the three types of alloys equivalent to SS 304 stainless steel. The microstructure of Fe-11Al-Mn alloy was similar between before and after cryogenic temperature treatment, this condition showed that the microstructure did not change during the process. From the overall results, the Fa-11Al-Mn alloy is a promising candidate for material applications working at cryogenic temperatures by optimizing the Mn content
format	article
author	Ratna Kartikasari Adi Subardi Andy Erwin Wijaya
author_facet	Ratna Kartikasari Adi Subardi Andy Erwin Wijaya
author_sort	Ratna Kartikasari
title	Development of Fe-11Al-xMN alloy steel on cryogenic temperatures
title_short	Development of Fe-11Al-xMN alloy steel on cryogenic temperatures
title_full	Development of Fe-11Al-xMN alloy steel on cryogenic temperatures
title_fullStr	Development of Fe-11Al-xMN alloy steel on cryogenic temperatures
title_full_unstemmed	Development of Fe-11Al-xMN alloy steel on cryogenic temperatures
title_sort	development of fe-11al-xmn alloy steel on cryogenic temperatures
publisher	PC Technology Center
publishDate	2021
url	https://doaj.org/article/afd536930f4b460e93c7f2c93a7bc029
work_keys_str_mv	AT ratnakartikasari developmentoffe11alxmnalloysteeloncryogenictemperatures AT adisubardi developmentoffe11alxmnalloysteeloncryogenictemperatures AT andyerwinwijaya developmentoffe11alxmnalloysteeloncryogenictemperatures
_version_	1718444861279961088

Development of Fe-11Al-xMN alloy steel on cryogenic temperatures

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