About: Deformations of Ti-6Al-4 V additive-manufacturing-induced isotropic and anisotropic columnar structures: In situ measurements and underlying mechanisms

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About: Deformations of Ti-6Al-4 V additive-manufacturing-induced isotropic and anisotropic columnar structures: In situ measurements and underlying mechanisms Goto Sponge NotDistinct Permalink

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type	Academic Article research paper schema:ScholarlyArticle
isDefinedBy	Covid-on-the-Web dataset
title	Deformations of Ti-6Al-4 V additive-manufacturing-induced isotropic and anisotropic columnar structures: In situ measurements and underlying mechanisms
Creator	Shen, Jun Keller, Thomas Chang, Wei Ac, Chuang Amalia, Lia Chuang, Andrew Huang, E-Wen Huang, Shih S-Ju Huang, W-Chin Huang, Wei-Chin Jeromin, Arno Lin B-Hsuan, Amalia Lin, Bi-Hsuan N-Ti, Tsou Shih, Shao-Ju Tf, Keller Tseng, J-Chi Tseng, Jo-Chi Tsou, Nien-Ti Wang, C-Chieh Wang, Chun-Chieh
source	Elsevier; Medline; PMC
abstract	The deformations of isotropic and anisotropic Ti-6Al-4 V columnar structures fabricated by additive manufacturing were extensively examined. The distinct texture and microstructure distributions were characterised. In situ X-ray diffraction measurements show different lattice activities resulting from the different microstructure distributions. Spatially resolved mapping revealed manufacturing-induced crystallite-orientation distributions that determine the deformation mechanisms. We propose a self-consistent model to correlate the multi-scale characteristics, from the anisotropic-texture-distribution microstructure to the bulk mechanical properties. We determined that basal and pyramidal slip activities were activated by tension deformation. The underlying additive-manufacturing-induced crystal plasticity plays a major role. We find that the texture development of the columnar structures and the distribution of crystallite orientation achieved by different processing conditions during additive manufacturing have important effects on the mechanical properties. The dominant deformation mode for the anisotropic Ti-6Al-4 V columnar structure is basal slip, and that for the isotropic Ti-6Al-4 V columnar structure is pyramidal slip. The difference may be important for determining the fatigue behaviour.
has issue date	2020-06-12(xsd:dateTime)
bibo:doi	10.1016/j.addma.2020.101322
bibo:pmid	32835025
has license	no-cc
sha1sum (hex)	b0a03e2b3750e14e9f64e009825f6d7e5e7f55ec
schema:url	https://doi.org/10.1016/j.addma.2020.101322
resource representing a document's title	Deformations of Ti-6Al-4 V additive-manufacturing-induced isotropic and anisotropic columnar structures: In situ measurements and underlying mechanisms
has PubMed Central identifier	PMC7291991
has PubMed identifier	32835025
schema:publication	Addit Manuf
resource representing a document's body	covid:b0a03e2b3750e14e9f64e009825f6d7e5e7f55ec#body_text
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