Fabricating sports equipment components via powder metallurgy

Moxson, Vladimir; Froes, F. H.

doi:10.1007/s11837-001-0147-z

Cited by 15 publications

(19 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Commercially pure (CP) 3 titanium and Ti-6AI-4V powders with allowable oxygen and nitrogen content were successfully produced from their respective turnings. The results were published in several papers [24][25][26][27][28][29][30][31][32] and presented at international conferences [42][43][44][45][46][47][48]. This work was conducted together with ADMA Products, Inc., Twinsburg, OH, and led to additional funding from the US ARL with SBIR Phase II program funding.…”

Section: Resultsmentioning

confidence: 99%

Enhanced Performance Near Net Shape Titanium Alloys by Thermohydrogen Processing

Froes¹,

Senkov²,

Qazi³

2001

View full text Add to dashboard Cite

Public Reporting burden for this collection of information is estimated to average 1 hour per response, including the time for reviewing instructions, searching existing data sources, gathering and maintaining the data needed, and completing and reviewing the collection of information. Send comment regarding this burden estimates or any other aspect of this collection of information, including suggestions for reducing this burden, to Washington Headquarters Services, Directorate for information Operations and Reports, 1215 Jefferson Davis Highway, Suite 1204, Arlington, VA 22202-4302, and The views, opinions and/or findings contained in this report are those of the author(s) and should not be construed as an official Department of the Army position, policy or decision, unless so designated by other documentation. This is a final report and it covers the work reported in interim reports and work done during this calendar year. This research program was aimed at a detailed understanding of the effect of hydrogen as a temporary alloying element (thermohydrogen processing, THP) on processing parameters, microstructural modifications and final mechanical properties of castand-wrought (ingot metallurgy), powder metallurgy and cast titanium alloys. Fundamental results have been obtained which can now be used to develop optimum THP steps to refine the microstructure and improve the mechanical properties of titanium alloys. As a part of this project, the phase diagram of the Ti-6AI-4V -hydrogen system, and a determination of the stable and metastable phases, which occur in this system, have been defined. Kinetics of the ß phase decomposition has been studied and the non-equilibrium TTT (temperature-time-transformation) diagrams of the beta to alpha+beta+hydride transformation have been determined for the alloys with 10, 20, and 30 at.% hydrogen. Kinetics of decomposition of martensite structures have also been determined for these three hydrogen concentrations. The results have been presented at international meetings, twenty-two technical papers were published and twelve papers have been submitted for publication. Additionally a patent was also awarded. The results of the work have been transitioned to an Army SBIR program designed to produce low cost titanium components for armored vehicles. ABSTRACT This research program was aimed at a detailed understanding of the effect of hydrogen as a temporary alloying element (thermohydrogen processing, THP) on processing parameters, microstructural modifications and final mechanical properties of castand-wrought (ingot metallurgy), powder metallurgy and cast titanium alloys. Fundamental results have been obtained which can now be used to develop optimum THP steps to refine the microstructure and improve the mechanical properties of titanium alloys. As a part of this project, the phase diagram of the Ti-6AI-4V -hydrogen system, and a determination of the stable and metastable phases, which occur in this system, have been defined. Kinetics of the ß phase decomposition has been...

show abstract

Section: Resultsmentioning

confidence: 99%

Enhanced Performance Near Net Shape Titanium Alloys by Thermohydrogen Processing

Froes¹,

Senkov²,

Qazi³

2001

View full text Add to dashboard Cite

show abstract

“…Titanium powder metallurgy related journals, commercial on-line databases, materials organizations publications and patents were reviewed to evaluate the current status and future direction of the titanium powder availability and powder metallurgy manufacturing processes for production of metal-metal composites, including infiltration of porous metal matrix with metal filling [7][8][9][10][11][12][13][14][15][16][17][18]. Based on the review and analysis, a series of experiments were conducted in order to investigate relationships between titanium powder mo rphology, purity, particle size distribution and processing conditions.…”

Section: Optimization Of Technologymentioning

confidence: 99%

An Insoluble Titanium-Lead Anode for Sulfate Electrolytes

Ferdman¹

2005

View full text Add to dashboard Cite

“…Uno de los usos más conocidos tiene lugar en el de la biomedicina, por su excelente biocompatibilidad, baja densidad, resistencia a la corrosión y adecuadas propiedades mecánicas [1] . También, en otros campos como en el sector automovilístico [2] o, incluso, en el área de equipamiento deportivo [3] , está siendo ampliamente utilizado, dado que es un material que destaca por su buena relación resistencia frente a peso.Las aleaciones de titanio tipo β son las más versátiles dentro de las aleaciones de titanio. Destacan por su alta resistencia específica y por la interesante combinación de resistencia, tenacidad y resistencia a la fatiga.…”

unclassified

Caracterización mecánica de aleaciones Ti-Nb mediante ensayos de flexión biaxial

Benavente-Martínez¹,

Devesa²,

Amigó³

2010

REVMETAL

View full text Add to dashboard Cite

ResumenEn la actualidad, cada vez, son más importantes en la industria las aleaciones de titanio. En especial las aleaciones tipo-β, que destacan por tener buenas propiedades resistentes y bajos módulos elásticos, en comparación con el Ti c.p. o el Ti-6Al-4V. Dentro de estas aleaciones cabe destacar las Ti-Nb con altos contenidos en elementos aleantes. En este trabajo se han obtenido, mediante pulvimetalurgia convencional, una serie de aleaciones Ti-Nb, en el rango del 20-40 % de niobio. Se ha obtenido la evolución de las propiedades de dichas aleaciones en función del porcentaje de niobio, mediante la utilización del ensayo de flexión biaxial con tres apoyos (three ball test). Palabras clavePulvimetalurgia;Ti-Nb; Flexión biaxial; Fractura; Modulo elástico; Aleaciones β-Ti. Mechanical characterization of Ti-Nb alloys by ball on three balls test AbstractNowadays titanium and titanium alloys are increasingly being used in the industry. Particularly β-Ti alloys that stand out for having great strength properties and low elastic modulus compared to Ti c.p. or Ti-6Al-4V. Among Ti alloys, Ti-Nb alloys with high contents of alloying elements are widely used. In this work Ti-Nb alloys have been obtained using conventional powder metallurgy. It has been studied the evolution of properties of these alloys as a function of the percentage of niobium. It can be noted the ball on three balls test used in order to characterize the samples. KeywordsPowder metallurgy; Ti-Nb; Ball on three balls test; Young's modulus; β-Ti alloys. INTRODUCCIÓNEl titanio y sus aleaciones tienen aplicación en diversidad de campos. Uno de los usos más conocidos tiene lugar en el de la biomedicina, por su excelente biocompatibilidad, baja densidad, resistencia a la corrosión y adecuadas propiedades mecánicas [1] . También, en otros campos como en el sector automovilístico [2] o, incluso, en el área de equipamiento deportivo [3] , está siendo ampliamente utilizado, dado que es un material que destaca por su buena relación resistencia frente a peso.Las aleaciones de titanio tipo β son las más versátiles dentro de las aleaciones de titanio. Destacan por su alta resistencia específica y por la interesante combinación de resistencia, tenacidad y resistencia a la fatiga. Además, por su bajo módulo elástico y buena resistencia a la corrosión constituyen un material muy apropiado para implantes quirúrgicos [4 y 5] .Por esta razón es de especial interés el estudio de aleaciones base titanio a partir de elementos no tóxi-cos como niobio, molibdeno o tántalo, que presentan mejor biocompatibilidad, además de un módulo elástico menor que Ti-6Al-4V por ser estabilizadores de la fase β [6 y 7] . La pulvimetalurgia es una téc-nica que permite obtener formas cercanas a la pieza acabada incluso con geometrías complejas y, dada su versatilidad, es una buena alternativa a la hora de procesar este tipo de aleaciones.Dentro de la caracterización mecánica, el ensayo de flexión biaxial, ball on three balls, ofrece ventajas respecto a los ensayos uniaxiales, como la fácil ...

show abstract

Fabricating sports equipment components via powder metallurgy

Cited by 15 publications

References 8 publications

Enhanced Performance Near Net Shape Titanium Alloys by Thermohydrogen Processing

Enhanced Performance Near Net Shape Titanium Alloys by Thermohydrogen Processing

An Insoluble Titanium-Lead Anode for Sulfate Electrolytes

Caracterización mecánica de aleaciones Ti-Nb mediante ensayos de flexión biaxial

Contact Info

Product

Resources

About