Tailoring grain sizes of the biodegradable iron-based alloys by pre-additive manufacturing microalloying

Abstract We demonstrated the design of pre-additive manufacturing microalloying elements in tuning the microstructure of iron (Fe)-based alloys for their tunable mechanical properties. We tailored the microalloying stoichiometry of the feedstock to control the grain sizes of the metallic alloy syste...

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Autores principales:	Chih-Chieh Huang, Tu-Ngoc Lam, Lia Amalia, Kuan-Hung Chen, Kuo-Yi Yang, M. Rifai Muslih, Sudhanshu Shekhar Singh, Pei-I. Tsai, Yuan-Tzu Lee, Jayant Jain, Soo Yeol Lee, Hong-Jen Lai, Wei-Chin Huang, San-Yuan Chen, E-Wen Huang
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/aed63981a0bc4f7490276a9b62cc9145
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spelling	oai:doaj.org-article:aed63981a0bc4f7490276a9b62cc91452021-12-02T14:29:09ZTailoring grain sizes of the biodegradable iron-based alloys by pre-additive manufacturing microalloying10.1038/s41598-021-89022-92045-2322https://doaj.org/article/aed63981a0bc4f7490276a9b62cc91452021-05-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-89022-9https://doaj.org/toc/2045-2322Abstract We demonstrated the design of pre-additive manufacturing microalloying elements in tuning the microstructure of iron (Fe)-based alloys for their tunable mechanical properties. We tailored the microalloying stoichiometry of the feedstock to control the grain sizes of the metallic alloy systems. Two specific microalloying stoichiometries were reported, namely biodegradable iron powder with 99.5% purity (BDFe) and that with 98.5% (BDFe-Mo). Compared with the BDFe, the BDFe-Mo powder was found to have lower coefficient of thermal expansion (CTE) value and better oxidation resistance during consecutive heating and cooling cycles. The selective laser melting (SLM)-built BDFe-Mo exhibited high ultimate tensile strength (UTS) of 1200 MPa and fair elongation of 13.5%, while the SLM-built BDFe alloy revealed a much lower UTS of 495 MPa and a relatively better elongation of 17.5%, indicating the strength enhancement compared with the other biodegradable systems. Such an enhanced mechanical behavior in the BDFe-Mo was assigned to the dominant mechanism of ferrite grain refinement coupled with precipitate strengthening. Our findings suggest the tunability of outstanding strength-ductility combination by tailoring the pre-additive manufacturing microalloying elements with their proper concentrations.Chih-Chieh HuangTu-Ngoc LamLia AmaliaKuan-Hung ChenKuo-Yi YangM. Rifai MuslihSudhanshu Shekhar SinghPei-I. TsaiYuan-Tzu LeeJayant JainSoo Yeol LeeHong-Jen LaiWei-Chin HuangSan-Yuan ChenE-Wen HuangNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-12 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Chih-Chieh Huang Tu-Ngoc Lam Lia Amalia Kuan-Hung Chen Kuo-Yi Yang M. Rifai Muslih Sudhanshu Shekhar Singh Pei-I. Tsai Yuan-Tzu Lee Jayant Jain Soo Yeol Lee Hong-Jen Lai Wei-Chin Huang San-Yuan Chen E-Wen Huang Tailoring grain sizes of the biodegradable iron-based alloys by pre-additive manufacturing microalloying
description	Abstract We demonstrated the design of pre-additive manufacturing microalloying elements in tuning the microstructure of iron (Fe)-based alloys for their tunable mechanical properties. We tailored the microalloying stoichiometry of the feedstock to control the grain sizes of the metallic alloy systems. Two specific microalloying stoichiometries were reported, namely biodegradable iron powder with 99.5% purity (BDFe) and that with 98.5% (BDFe-Mo). Compared with the BDFe, the BDFe-Mo powder was found to have lower coefficient of thermal expansion (CTE) value and better oxidation resistance during consecutive heating and cooling cycles. The selective laser melting (SLM)-built BDFe-Mo exhibited high ultimate tensile strength (UTS) of 1200 MPa and fair elongation of 13.5%, while the SLM-built BDFe alloy revealed a much lower UTS of 495 MPa and a relatively better elongation of 17.5%, indicating the strength enhancement compared with the other biodegradable systems. Such an enhanced mechanical behavior in the BDFe-Mo was assigned to the dominant mechanism of ferrite grain refinement coupled with precipitate strengthening. Our findings suggest the tunability of outstanding strength-ductility combination by tailoring the pre-additive manufacturing microalloying elements with their proper concentrations.
format	article
author	Chih-Chieh Huang Tu-Ngoc Lam Lia Amalia Kuan-Hung Chen Kuo-Yi Yang M. Rifai Muslih Sudhanshu Shekhar Singh Pei-I. Tsai Yuan-Tzu Lee Jayant Jain Soo Yeol Lee Hong-Jen Lai Wei-Chin Huang San-Yuan Chen E-Wen Huang
author_facet	Chih-Chieh Huang Tu-Ngoc Lam Lia Amalia Kuan-Hung Chen Kuo-Yi Yang M. Rifai Muslih Sudhanshu Shekhar Singh Pei-I. Tsai Yuan-Tzu Lee Jayant Jain Soo Yeol Lee Hong-Jen Lai Wei-Chin Huang San-Yuan Chen E-Wen Huang
author_sort	Chih-Chieh Huang
title	Tailoring grain sizes of the biodegradable iron-based alloys by pre-additive manufacturing microalloying
title_short	Tailoring grain sizes of the biodegradable iron-based alloys by pre-additive manufacturing microalloying
title_full	Tailoring grain sizes of the biodegradable iron-based alloys by pre-additive manufacturing microalloying
title_fullStr	Tailoring grain sizes of the biodegradable iron-based alloys by pre-additive manufacturing microalloying
title_full_unstemmed	Tailoring grain sizes of the biodegradable iron-based alloys by pre-additive manufacturing microalloying
title_sort	tailoring grain sizes of the biodegradable iron-based alloys by pre-additive manufacturing microalloying
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/aed63981a0bc4f7490276a9b62cc9145
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Tailoring grain sizes of the biodegradable iron-based alloys by pre-additive manufacturing microalloying

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