Enhanced fatigue strength of commercially pure Ti processed by severe plastic deformation

Semenova, Irina P.; Salimgareeva, Gulnaz; Латыш, В. В.; Lowe, Terry C.; Valiev, Ruslan Z.

doi:10.1016/j.msea.2008.07.075

Cited by 83 publications

(29 citation statements)

References 12 publications

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“…[1] In recent years, studies have reported improvements in mechanical properties for ultrafine-grained (UFG) and nanostructured (NS) CP-Ti; particularly noteworthy are those processed via severe plastic deformation techniques. [7][8][9][10][11] This trend is illustrated by reports of CP-Ti with combinations of high tensile strength and good ductility (900-1500 MPa ultimate tensile strength [UTS] and 6-25 pct elongation to failure) as reported in different studies when processed via high-pressure torsion, [9] equal-channel angular pressing (ECAP), [7,12] and cryomilling. [13,14] For example, Semenova et al [7] reported up to 1150 MPa room temperature tensile yield strength (YS) and 1240 MPa UTS with a tensile elongation value of 11 pct, using ECAP followed by a heat treatment step.…”

Section: Introductionmentioning

confidence: 87%

Nanostructured Ti Consolidated via Spark Plasma Sintering

Ertörer

Topping

et al. 2010

Metall Mater Trans A

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Cryomilled nanocrystalline commercially pure (CP)-Ti powders were spark plasma sintered (SPS) using different process parameters (heating rate, temperature, pressure, and dwell time) to study densification, microstructure, and mechanical behavior. The results were rationalized on the basis of the relevant literature and experimental results, and they reveal a strong dependence on SPS parameters. An interesting finding was that the measured high ductility was accompanied by a moderate strength (yield strength [YS] = 770 MPa, ultimate tensile strength [UTS] = 840 MPa with~27 pct elongation to failure). The combinations of microstructure and mechanical response were attributed to the multistep processing at different temperature ranges as well as to the presence of interstitial solutes.

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Section: Introductionmentioning

confidence: 87%

Nanostructured Ti Consolidated via Spark Plasma Sintering

Ertörer

Topping

et al. 2010

Metall Mater Trans A

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“…The UFG material keeps the advantages of cpTi concerning corrosion resistance, biocompatibility and osseointegration and, at the same time, achieves strength levels comparable to those of Ti alloys thanks to the use of the SPD (Severe Plastic Deformation), Figure 10, for grain refinement [3][4][5][6][51][52][53][54][55][56][57][58][59] .…”

Section: Relevance As a Biomaterialsmentioning

confidence: 99%

“…For analytical purposes, the bone can be split in small units called basic multicellular units (BMUs) that replace old bone with a new one. The best known model of a basic structure unit is the secondary Haversian system, which is able to turn over around .010-.013mm 3 per month 42 . Implant materials with low elastic moduli have better stress distribution at the implant-bone interface and cause less bone atrophy.…”

Section: Design Of Dental Implantsmentioning

confidence: 99%

“…Usually, the treatment is performed using an aqueous solution of HCl, H 2 SO 4, HNO 3 or HF. When etching is performed with HNO 3 , the titanium oxide layer is passivated 28 .…”

Section: Acid Etching Ufg Implantsmentioning

confidence: 99%

“…Materials for this purpose are not necessarily organic but must exhibit specific properties 1 . Biocompatibility is, obviously, the most desirable property 2,3 . In addition, corrosion resistance to body fluids as well as mechanical strength, fatigue endurance, and toughness are also desirable features of a biomaterial, especially for implant applications [4][5][6] .…”

Section: Introductionmentioning

confidence: 99%

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Properties and Performance of Ultrafine Grained Titanium for Biomedical Applications

2015

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The use of materials for biomedical applications has become vital to enhance the quality of life and longevity of human beings. Commercially pure titanium (cpTi) and titanium alloys are the most adequate materials for some biomedical applications, but cpTi and the Ti-6Al-4V alloy (Ti G5) have limitations for biomedical application due to low mechanical strength and the possibility of ion release, respectively. In order to address this problem, commercially pure ultrafine grained titanium (UFG Ti) obtained by severe plastic deformation (SPD) has been suggested as a promising alternative for biomedical applications. This thermomechanical process is able to improve the strength of cpTi and titanium alloys while keeping their excellent biocompatibility. The purpose of this review was to compare the mechanical strength of UFG Ti, cpTi and a Ti G5 alloy. In addition, the biological performance of UFG Ti was also evaluated by in vivo testing. Prodigious improvements were seen in surface topography, wettability and in homogeneity of oxide layer. The overall improvements in microstructure provided by ECAP technique coupled with surface etching resulted in a remarkable performance of cpTi alloy for biomedical applications.

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Frontiers for Bulk Nanostructured Metals in Biomedical Applications

Lowe

Valiev

2014

Advanced Biomaterials and Biodevices

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Enhanced fatigue strength of commercially pure Ti processed by severe plastic deformation

Cited by 83 publications

References 12 publications

Nanostructured Ti Consolidated via Spark Plasma Sintering

Nanostructured Ti Consolidated via Spark Plasma Sintering

Properties and Performance of Ultrafine Grained Titanium for Biomedical Applications

Frontiers for Bulk Nanostructured Metals in Biomedical Applications

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