New titanium alloys for blended elemental powder processing

Smugeresky, John E.; Dawson, Daniel B.

doi:10.1016/0032-5910(81)85030-9

Cited by 14 publications

(11 citation statements)

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“…This pore-assisted fracture is the typical behavior of the Ti-6Al-4V titanium alloy obtained by the conventional PM route and it is similar to those formed on ingot metallurgy processed materials [23].…”

Section: Accepted M Manuscriptmentioning

confidence: 71%

Feasibility study of the production of biomedical Ti–6Al–4V alloy by powder metallurgy

Bolzoni

Ruiz-Navas

Gordo

2015

Materials Science and Engineering: C

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Titanium and its alloys are characterized by an exceptional combination of properties like high strength, good corrosion resistance and biocompatibility which makes them suitable materials for biomedical prosthesis and devices. The wrought Ti-6Al-4V alloy is generally favored in comparison to other metallic biomaterials due to its relatively low elastic modulus and it has been long used to obtain products for biomedical applications. In this work an alternative route to fabricate biomedical implants made out of the Ti-6Al-4V alloy is investigated. Specifically, the feasibility of the conventional powder metallurgy route of cold uniaxial pressing and sintering is addressed by considering two types of powders (i.e. blended elemental and prealloyed). The characterization of physical properties, chemical analysis, mechanical behavior and microstructural analysis is carried out in-depth and the properties are correlated among them. On the base of the results found, the produced alloys are promising materials for biomedical applications as well as cheaper surgical devices and tools.

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Section: Accepted M Manuscriptmentioning

confidence: 71%

Feasibility study of the production of biomedical Ti–6Al–4V alloy by powder metallurgy

Bolzoni

Ruiz-Navas

Gordo

2015

Materials Science and Engineering: C

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“…There has already been some researches on using the blending elemental approach to obtain titanium alloys, mainly Ti-6Al-4V, starting from either titanium sponge powder or titanium hydride with particle sizes lower than 100 mm, [11][12][13][14] or 150 mm. 15,16 In this work, two compositions, Ti-6Al-4V and Ti3Al-2?5V, were prepared by combining mechanical milling and conventional blending to obtain the composition required to study the influence of the Among the titanium powder production processes, the plasma atomisation and the hydridedehydride (HDH) processes are two of the most commonly employed for manufacturing titanium powder production route on the properties of the powder, as well as the applicability of the conventional press and sinter process to titanium PM products.…”

Section: Introductionmentioning

confidence: 99%

Influence of powder characteristics on sintering behaviour and properties of PM Ti alloys produced from prealloyed powder and master alloy

et al. 2011

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Abstract:The use and development of titanium and titanium alloys have been strongly correlated to high technology industries where costs are not the most important aspect. Titanium could see its market grow by the application of lower cost and more efficient processing methods such as powder metallurgy. This work deals with the characterisation of two types of powders: commercial prealloyed powder and powder produced from master alloy combining mechanical milling and conventional blending to adjust the particle size. The characteristics of the powders, sintering behaviour and final properties of the parts indicate that the master alloy approach leads to better compressibility than the prealloyed powders and, therefore, to lower dimensional change during sintering. The most important result is that it is possible to obtain Ti alloys with properties similar to or better than alloys from prealloyed powders and to obtain homogeneous microstructures, which allows the composition to be adjusted

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“…[9][10][11][12][13][14] The development of low cost alloys starts with the selection of a low cost alloying system. In Fig.…”

Section: Introductionmentioning

confidence: 99%

PM processing and characterisation of Ti–7Fe low cost titanium alloys

et al. 2011

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Abstract:This work studies a set of low cost beta alloys with the composition Ti-7Fe, processed by conventional powder metallurgy (PM). The materials were prepared by conventional blending of elemental Ti hydride-dehydride powder with three different Fe powder additions: water atomised Fe, Fe carbonyl and master alloy Fe-25Ti. The optimal sintering behaviour and the best mechanical properties were attained with the use of Fe carbonyl powder, which reached a sintered density of up to 93% of the theoretical density, with UTS values of 800 MPa in the 'as sintered' condition. Coarse water atomised powder particles promoted reactive sintering, and coarse porosity was found due to the coalescence of Kirkendall porosity and by the pores generated during the exothermic reaction between Ti and Fe. The addition of Fe-25Ti produced brittle materials, as its low purity (91·5%) was found to be unsuitable for formulating Ti alloys.

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New titanium alloys for blended elemental powder processing

Cited by 14 publications

References 0 publications

Feasibility study of the production of biomedical Ti–6Al–4V alloy by powder metallurgy

Feasibility study of the production of biomedical Ti–6Al–4V alloy by powder metallurgy

Influence of powder characteristics on sintering behaviour and properties of PM Ti alloys produced from prealloyed powder and master alloy

PM processing and characterisation of Ti–7Fe low cost titanium alloys

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