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Date: 2017
Language: eng
Resource Type: journal article
Identifier: http://hdl.handle.net/1959.14/1204051
Description: The “Holy Grail” of metal additive manufacturing is to manufacture reliable high-performance metal parts with no or a minimal need of post processing. However, Ti-6Al-4V parts made by selective laser ... More
Reviewed: Reviewed
Date: 2016
Language: eng
Resource Type: journal article
Identifier: http://hdl.handle.net/1959.14/1184079
Description: The capabilities of metal additive manufacturing (AM) are evolving rapidly thanks to both increasing industry demand and improved scientific understanding of the process. This article provides an over ... More
Reviewed: Reviewed
Date: 2015
Language: eng
Resource Type: journal article
Identifier: http://hdl.handle.net/1959.14/1080969
Description: Novel ultrafine lamellar (α + β) microstructures comprising ultrafine (~200–300 nm) α-laths and retained β phases were created via promoting in situ decomposition of a near α' martensitic structure in ... More
Reviewed: Reviewed
Authors: Zafari, A | Wei, X. S | Xu, W | Xia, K
Date: 2015
Language: eng
Resource Type: conference paper
Identifier: http://hdl.handle.net/1959.14/1251772
Description: A Ti-5553 metastable β alloy was subjected to high pressure torsion (HPT) to obtain a nano β grain structure. The β grains were dramatically refined from an initial size of ~1 mm to < 50 nm during HPT ... More
Full Text: Full Text
Reviewed: Reviewed
Authors: Zafari, A | Wei, X. S | Xu, W | Xia, K
Date: 2015
Language: eng
Resource Type: journal article
Identifier: http://hdl.handle.net/1959.14/1081024
Description: High pressure torsion was conducted to obtain nano-sized β grains in a metastable Ti-5553 alloy. Much finer grains of <50 nm were achieved, compared to >100 nm in a stable Ti-20 wt.% Mo alloy. The mor ... More
Reviewed: Reviewed
Date: 2015
Language: eng
Resource Type: journal article
Identifier: http://hdl.handle.net/1959.14/1081542
Description: The Achilles' heel of additively manufactured Ti-6Al-4V by selective laser melting (SLM) is its inferior mechanical properties compared with its wrought (forged) counterparts. Acicular α' martensite r ... More
Reviewed: Reviewed
Authors: Wei, X. S | Xu, W | Xia, K
Date: 2014
Language: eng
Resource Type: journal article
Identifier: http://hdl.handle.net/1959.14/1098527
Description: Nanocrystalline Ti and Ti-20 at.% Mg produced by mechanical milling were characterized using nanobeam diffraction. Metastable ω (hexagonal) and γ (orthorhombic) phases were observed in the pure Ti, wh ... More
Reviewed: Reviewed
Date: 2014
Language: eng
Resource Type: journal article
Identifier: http://hdl.handle.net/1959.14/1102034
Description: Room temperature tensile ductility is an important property of titanium (Ti) and titanium alloys for structural applications. This article reviews the dependency of tensile ductility on oxygen for α-T ... More
Reviewed: Reviewed
Date: 2013
Language: eng
Resource Type: journal article
Identifier: http://hdl.handle.net/1959.14/1102976
Description: The introduction of severe plastic deformation by high-pressure torsion greatly altered the ageing response of a Ti-20 wt.% Mo β alloy, promoting equiaxed (instead of acicular) α precipitation to form ... More
Reviewed: Reviewed
Date: 2012
Language: eng
Resource Type: journal article
Identifier: http://hdl.handle.net/1959.14/1103606
Description: Equal channel angular pressing was used to consolidate commercially pure titanium chips into fully dense bulk material with high strength (up to 650 MPa), due to an ultrafine grain size as low as 0.8 ... More
Reviewed: Reviewed
Date: 2012
Language: eng
Resource Type: journal article
Identifier: http://hdl.handle.net/1959.14/1103118
Description: Severe plastic deformation in the form of equal channel angular pressing (ECAP) has been adopted to introduce severe shear strain into a Ti—20 wt.% Mo β-type titanium alloy to elucidate the aging resp ... More
Reviewed: Reviewed
Authors: Lui, E. W | Xu, W | Wu, X | Xia, K
Date: 2011
Language: eng
Resource Type: journal article
Identifier: http://hdl.handle.net/1959.14/1205466
Description: A multiscale structured material consisting of dual phases of Ti and Al was processed by severe plastic deformation. An elemental powder mixture of Ti–47 at.% Al was mechanically milled to produce par ... More
Reviewed: Reviewed
Authors: Goussous, S | Xu, W | Xia, K
Date: 2010
Language: eng
Resource Type: conference paper
Identifier: http://hdl.handle.net/1959.14/1207333
Description: Severe plastic deformation (SPD) processes were used in mixing and consolidating aluminum based nanocomposites containing various amounts of C nanoparticles. A planetary ball milling machine was used ... More
Reviewed: Reviewed
Date: 2010
Language: eng
Resource Type: journal article
Identifier: http://hdl.handle.net/1959.14/1205504
Description: The use of high-temperature (330 °C) equal-channel angular pressing (ECAP) is demonstrated to promote precipitation of a fine and uniform dispersion of the FCC β₁ phase in an Mg–Nd–Gd–Zn–Zr alloy. Sig ... More
Reviewed: Reviewed
Date: 2010
Language: eng
Resource Type: conference paper
Identifier: http://hdl.handle.net/1959.14/1252117
Description: The microstructural evolution upon compressive loading was identified for metastable Ti-Nb-Ta-M (M=In, Ag, or Cr)β alloys with different phase stability against β→α" martensitic transformation. With i ... More