Additive manufacturing of Ti6Al4V alloy: A review. (15th February 2019)

• Record Type: Journal Article
• Authors: Liu, Shunyu; Shin, Yung C.
• Is Part Of: Materials & design. Volume 164(2019)
• Publication Date: 2019-02-15
• Subjects: Ti6Al4V -- Directed energy deposition -- Selective laser melting -- Electron beam melting -- Tensile property -- Fatigue property; Materials -- Periodicals; Engineering design -- Periodicals; Matériaux -- Périodiques; Conception technique -- Périodiques; Electronic journals; 620.11
• DOI: 10.1016/j.matdes.2018.107552
• Languages: English
• ISSNs: 0264-1275

Abstract

Abstract: In this paper, the recent progress on Ti6Al4V fabricated by three mostly developed additive manufacturing (AM) techniques-directed energy deposition (DED), selective laser melting (SLM) and electron beam melting (EBM)-is thoroughly investigated and compared. Fundamental knowledge is provided for the creation of links between processing parameters, resultant microstructures and associated mechanical properties. Room temperature tensile and fatigue properties are also reviewed and compared to traditionally manufactured Ti6Al4V parts. The presence of defects in as-built AM Ti6Al4V components and the influences of these defects on mechanical performances are also critically discussed. Graphical abstract: Highlights: Recent progresses in additively manufactured Ti6Al4V were reviewed. Laser direct deposition, selective laser melting and electron beam melting were comparatively studied. Processing-microstructure-tensile and fatigue properties relationship were established. Effects of defects on mechanical properties were also addressed.