Strong and ductile reduced activation ferritic/martensitic steel additively manufactured by selective laser melting

Autor:	M. G. Jiang, Z. W. Chen, J. D. Tong, C. Y. Liu, G. Xu, H. B. Liao, P. Wang, X. Y. Wang, M. Xu, C. S. Lao
Jazyk:	angličtina
Rok vydání:	2019
Předmět:	Selective laser melting reduced activation steel heterogeneous microstructure strength ductility Materials of engineering and construction. Mechanics of materials TA401-492
Zdroj:	Materials Research Letters, Vol 7, Iss 10, Pp 426-432 (2019)
Druh dokumentu:	article
ISSN:	2166-3831 21663831
DOI:	10.1080/21663831.2019.1631224
Popis:	Selective laser melting (SLM) was successfully applied to fabricate strong and ductile reduced activation ferritic/martensitic (RAFM) steel by introducing heterogeneous multi-/bimodal microstructure. The SLM-built RAFM steel exhibited an excellent combination of strength and ductility (i.e. yield strength of 1053 ± 4.7 MPa and elongation of 16.9 ± 0.4%), well surpassing the previously reported counterparts. The superior strength was expected from the refined grains and lath martensites, and the high ductility was associated with the improved dislocation-controlled strain hardening capability. This work provides a basis for developing high-performance RAFM steel by microstructural design via SLM.
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/8d2a7ac452e6475ab50b6fe86e4a1a32 Zobrazit plný text záznamu View record in DOAJ