Superior tensile properties in additively manufactured Ti alloys

Autor:	A. Zafari, Kenong Xia, Prathap Chandran
Rok vydání:	2021
Předmět:	Materials science Yield (engineering) Mechanical Engineering Ultimate tensile strength Titanium alloy Lamellar structure Work hardening Selective laser melting Composite material Ductility Microstructure
Zdroj:	Australian Journal of Mechanical Engineering. 19:602-608
ISSN:	2204-2253 1448-4846
DOI:	10.1080/14484846.2021.1979924
Popis:	Thanks to rapid cooling rates and small melt pool sizes, selective laser melting (SLM) can be used to create novel microstructures difficult or impossible to achieve otherwise. This article overviews two types of SLM-fabricated Ti alloys exhibiting excellent strength and ductility. First, fully martensitic Ti-6Al-4 V alloys are produced with high yield strengths of >1100 MPa and total elongations of ~12–14%, comparable to those in fine α/β lamellar Ti-6Al-4 V. Second, hybridisation of different microstructures from existing alloys to generate a ‘composite of microstructures’ is introduced as a new strategy for producing heterogenous alloys with significantly enhanced performances. In particular, Ti alloys hybridised from different classes of Ti (α, α-β and β) have exhibited an excellent combination of high strength, work hardening ability and ductility, superior to conventional pure Ti andTi alloys.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::063d272bed2c63e16e138af0aec90f94 https://doi.org/10.1080/14484846.2021.1979924 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
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