Laser powder micro-deposition of compositional gradient Ti–Cr alloy

Zhang, Y.Z.; Meacock, C; Vilar, R.

doi:10.1016/j.matdes.2010.02.052

Cited by 33 publications

(18 citation statements)

References 15 publications

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“…The microstructure and properties of these alloys are very sensitive to their Cr content and preparation method. 1) When the ratio of chromium was up to 68.8 mass%, the X-ray analysis revealed that major Cr and minor TiCr 2 phases were produced after hot-press pressing at the different temperatures (as shown in Fig. 2).…”

Section: Resultsmentioning

confidence: 98%

“…1) Recently, Cr-based Laves phases have also been investigated for high temperature structural applications due to their high melting point, high strength and reasonably good oxidation resistance at elevated temperatures. The relative investigation of alloy design, defect structure and deformation mechanism was carried out for Laves phases to improve the poor ductility at low temperature, which is a common disadvantage of Laves phases.…”

Section: Introductionmentioning

confidence: 99%

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Investigation of Vacuum Hot-Press Sintering Temperatures on the Sintered Characteristics of Cr-31.2 mass% Ti Alloys

Chang

Huang³

2017

Mater. Trans.

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The aim of this work is to nd the optimal sintering parameters of Cr-31.2 mass% Ti alloys and simultaneously investigate the effects of the TiCr 2 Laves phases. In this study, Cr-31.2 mass% Ti alloys are fabricated by vacuum hot-press sintering. Different compositions of submicron titanium (760 nm) powders are added to micron chromium (4.66 μm) powders. The experiments utilize various hot-press sintering temperatures (1250, 1300, 1350 and 1400 C) with the pressure maintained at 20 MPa for 1 h, respectively. The experimental results show the optimal parameters of the hot-press sintered Cr-31.2 mass% Ti alloys to be 1400 C at 20 MPa for 1 h. The relative density reaches 99.96% and the hardness and TRS (transverse rupture strength) reach 81.93 HRA and 475.73 MPa, respectively. In addition, the increase in temperature of the hot-press sintering is effectively decreased the Cr 3 Ti 3 O and slightly enhanced TiCr 2 phases, which will lead to the better mechanical properties. Signi cantly, the optimal hot-press sintered Cr-31.2 mass% Ti alloys possess a dense microstructure, excellent mechanical property and good electrical conductivity value (1.51 × 10 4 S·cm

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Section: Resultsmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

Investigation of Vacuum Hot-Press Sintering Temperatures on the Sintered Characteristics of Cr-31.2 mass% Ti Alloys

Chang

Huang³

2017

Mater. Trans.

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show abstract

“…can be used to generate functionally, compositionally-graded material, such as H13 tool steel and A c c e p t e d M a n u s c r i p t copper for thermally-conductive mold dies or implants [120][121][122][123], tungsten carbide-cobalt cerment [46], compositionally-gradient titanium-chromium alloy [124,125], compositionallygradient titanium-vanadium and titanium-molybdenum alloys [126], nickel aluminides [127] and AISI 316L SS-Inconel 718 [128]. Understanding, modeling and optimizing the particle/laser interactions, prior to melt pool entry, is important for furthering DLD technology.…”

Section: Page 23 Of 110mentioning

confidence: 99%

An overview of Direct Laser Deposition for additive manufacturing; Part I: Transport phenomena, modeling and diagnostics

Thompson

Bian

Shamsaei

et al. 2015

Additive Manufacturing

680

379

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“…However, the release of V ion into the human body induces cytotoxic effects and might cause long-term health problems [3,4]. Therefore, many efforts have been devoted to develop V-free Ti alloys, such as Ti-Zr [5,6], Ti-Mo [7,8], Ti-Ta [9], Ti-Nb [10][11][12] and Ti-Cr alloys [13][14][15].…”

Section: Introductionmentioning

confidence: 99%