Microstructural evolution and mechanical properties of selective laser melted Ti-6Al-4V induced by annealing treatment

Pei Wang; Feng hua Chen; J. Eckert; S. Pilz; S. Scudino; K. G. Prashanth

doi:10.1007/s11771-021-4680-3

Microstructural evolution and mechanical properties of selective laser melted Ti-6Al-4V induced by annealing treatment

Pei Wang, Feng hua Chen, J. Eckert, S. Pilz, S. Scudino, K. G. Prashanth

Lehrstuhl für Materialphysik (430)

Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Begutachtung

3 Zitate (Scopus)

Abstract

Ti-6Al-4V specimens were fabricated by selective laser melting (SLM) to study the effect of thermal treatment on the phase transformation, elemental diffusion, microstructure, and mechanical properties. The results show that vanadium enriches around the boundary of α phases with increasing annealing temperature to 973 K, and α′ phases transform into α+β at 973 K. The typical α′ martensite microstructure transforms to fine-scale equiaxed microstructure at 973 K and the equiaxed microstructure significantly coarsens with increasing annealing temperature to 1273 K. The SLM Ti-6Al-4V alloy annealed at 973 K exhibits a well-balanced combination of strength and ductility ((1305±25) MPa and (37±3) %, respectively).

Originalsprache	Englisch
Seiten (von - bis)	1068-1077
Seitenumfang	10
Fachzeitschrift	Journal of Central South University = Zhongnan-Daxue-xuebao : yingwen-ban
Jahrgang	28.2021
Ausgabenummer	4
DOIs	https://doi.org/10.1007/s11771-021-4680-3
Publikationsstatus	Veröffentlicht - 19 Mai 2021

Bibliographische Notiz

Funding Information:
Foundation item: Project (2020A1515110869) supported by Guangdong Basic and Applied Basic Research Foundation, China; Project(GJHZ20190822095418365) supported by Shenzhen International Cooperation Research, China; Project(51775351) supported by the National Natural Science Foundation of China; Project(2019011) supported by the NTUT-SZU Joint Research Program, China; Project(2019040) supported by the Natural Science Foundation of SZU, China; Project(ASTRA6-6) supported by the European Regional Development Fund, European Union

Publisher Copyright:
© 2021, Central South University Press and Springer-Verlag GmbH Germany, part of Springer Nature.

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10.1007/s11771-021-4680-3

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abstract = "Ti-6Al-4V specimens were fabricated by selective laser melting (SLM) to study the effect of thermal treatment on the phase transformation, elemental diffusion, microstructure, and mechanical properties. The results show that vanadium enriches around the boundary of α phases with increasing annealing temperature to 973 K, and α′ phases transform into α+β at 973 K. The typical α′ martensite microstructure transforms to fine-scale equiaxed microstructure at 973 K and the equiaxed microstructure significantly coarsens with increasing annealing temperature to 1273 K. The SLM Ti-6Al-4V alloy annealed at 973 K exhibits a well-balanced combination of strength and ductility ((1305±25) MPa and (37±3) %, respectively).",

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Microstructural evolution and mechanical properties of selective laser melted Ti-6Al-4V induced by annealing treatment. / Wang, Pei; Chen, Feng hua; Eckert, J. et al.
in: Journal of Central South University = Zhongnan-Daxue-xuebao : yingwen-ban, Jahrgang 28.2021, Nr. 4, 19.05.2021, S. 1068-1077.

Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Begutachtung

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AU - Wang, Pei

AU - Chen, Feng hua

AU - Eckert, J.

AU - Pilz, S.

AU - Scudino, S.

AU - Prashanth, K. G.

PY - 2021/5/19

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AB - Ti-6Al-4V specimens were fabricated by selective laser melting (SLM) to study the effect of thermal treatment on the phase transformation, elemental diffusion, microstructure, and mechanical properties. The results show that vanadium enriches around the boundary of α phases with increasing annealing temperature to 973 K, and α′ phases transform into α+β at 973 K. The typical α′ martensite microstructure transforms to fine-scale equiaxed microstructure at 973 K and the equiaxed microstructure significantly coarsens with increasing annealing temperature to 1273 K. The SLM Ti-6Al-4V alloy annealed at 973 K exhibits a well-balanced combination of strength and ductility ((1305±25) MPa and (37±3) %, respectively).

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