The technologies of titanium powder metallurgy

Froes, F. H.; Mashl, Stephen J.; Hebeisen, John C.; Moxson, Vladimir; Duz, V. A.

doi:10.1007/s11837-004-0252-x

Cited by 139 publications

(68 citation statements)

References 7 publications

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“…One of the key areas of recent development within the titanium industry is powder metallurgy (e.g., 3D printing 25,26 and near-net-shape manufacturing 31 ). Since titanium and its alloys produced from the FFC-Cambridge process are typically in a porous structure (see Fig.…”

Section: Incorporation With the Advanced Manufacturing Conceptsmentioning

confidence: 99%

“…Furthermore, the fabrication of titanium alloys in complex shapes increases both the waste and cost and calls for creative manufacturing techniques such as additive manufacturing, [24][25][26] nearnet-shape casting, 27 spark plasma sintering (SPS), 28 and metal injection moulding. 29 Most of these advanced techniques are based on powder metallurgy, 30,31 and powder production requires sophisticated pulverisation and spheroidisation processes, which in turn adds extra costs to the final products.…”

Section: Introductionmentioning

confidence: 99%

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Development of the Fray-Farthing-Chen Cambridge Process: Towards the Sustainable Production of Titanium and Its Alloys

Dolganov

et al. 2017

JOM

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Section: Incorporation With the Advanced Manufacturing Conceptsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Development of the Fray-Farthing-Chen Cambridge Process: Towards the Sustainable Production of Titanium and Its Alloys

Dolganov

et al. 2017

JOM

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“…Isothermal sintering was performed at 1573 K (1300°C) from 2 to 3 h under the protection of Ti sponge for both sintering processes. Literature data [29][30][31][32][33][34][35][36][37] are included for comparison, although they vary significantly. CV: conventional vacuum.…”

Section: Tensile Property With Controlled Interstitial Contaminationmentioning

confidence: 99%

Microwave Heating, Isothermal Sintering, and Mechanical Properties of Powder Metallurgy Titanium and Titanium Alloys

Luo¹,

Guan²,

Yang³

et al. 2012

Metall Mater Trans A

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This article presents a detailed assessment of microwave (MW) heating, isothermal sintering, and the resulting tensile properties of commercially pure Ti (CP-Ti), Ti-6Al-4V, and Ti-10V-2Fe-3Al (wt pct), by comparison with those fabricated by conventional vacuum sintering. The potential of MW sintering for titanium fabrication is evaluated accordingly. Pure MW radiation is capable of heating titanium powder to ‡1573 K (1300°C), but the heating response is erratic and difficult to reproduce. In contrast, the use of SiC MW susceptors ensures rapid, consistent, and controllable MW heating of titanium powder. MW sintering can consolidate CP-Ti and Ti alloys compacted from À100 mesh hydride-dehydride (HDH) Ti powder to~95.0 pct theoretical density (TD) at 1573 K (1300°C), but no accelerated isothermal sintering has been observed over conventional practice. Significant interstitial contamination occurred from the Al 2 O 3 -SiC insulation-susceptor package, despite the high vacuum used (£4.0 9 10 À3 Pa). This leads to erratic mechanical properties including poor tensile ductility. The use of Ti sponge as impurity (O, N, C, and Si) absorbers can effectively eliminate this problem and ensure good-to-excellent tensile properties for MW-sintered CP-Ti, Ti-10V-2Fe-3Al, and Ti-6Al-4V. The mechanisms behind various observations are discussed. The prime benefit of MW sintering of Ti powder is rapid heating. MW sintering of Ti powder is suitable for the fabrication of small titanium parts or titanium preforms for subsequent thermomechanical processing.

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“…In particular the manufacturing of composite materials is a promising way to achieve materials with outstanding properties. The well known properties of titanium and its alloys [1][2][3] as matrix metal, in combination with the advantages of powder metallurgy techniques [4], offer an interesting possibility to the development of metal matrix composites [5,6]. The use of innovative reinforcement materials plays an important role for the production of composite materials with outstanding properties.…”

Section: Introductionmentioning

confidence: 99%

Influence of nano-reinforcements on the mechanical properties and microstructure of titanium matrix composites

Montealegre-Meléndez

Neubauer

Angerer

et al. 2011

Composites Science and Technology

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Abstract:The goal of this work is the evaluation of nano-scaled reinforcements; in particular nano diamonds (NDs) and carbon nanotubes (CNTs) on properties of Titanium Matrix Composites (TiMMCs). By using nanosized materials as reinforcement in TiMMCs, superior mechanical and physical properties can be expected. Additionally, titanium powder metallurgy (P/M) offers the possibility of changing the reinforcement content in the matrix within a very wide range. In this work, TiMMCs have been produced from titanium powder (grade 4). The manufacturing of the composites was done by hot pressing, followed by the characterisation of the TiMMCs. The Archimedes density, hardness and oxygen content of the specimens in addition to the mechanical properties were compared and reported in this work. Moreover, XRD analysis and SEM 2 observations revealed in situ formed titanium carbide (TiC) phase after hot pressing in TiMMCs reinforced with NDs and CNTs, at 900ºC and 1100ºC respectively. The strengthening effect of NDs was more significant since its distribution was more homogeneous in the matrix.

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The technologies of titanium powder metallurgy

Cited by 139 publications

References 7 publications

Development of the Fray-Farthing-Chen Cambridge Process: Towards the Sustainable Production of Titanium and Its Alloys

Development of the Fray-Farthing-Chen Cambridge Process: Towards the Sustainable Production of Titanium and Its Alloys

Microwave Heating, Isothermal Sintering, and Mechanical Properties of Powder Metallurgy Titanium and Titanium Alloys

Influence of nano-reinforcements on the mechanical properties and microstructure of titanium matrix composites

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