Nanostructured β-type titanium alloy fabricated by ultrasonic nanocrystal surface modification

Mehdi Kheradmandfard, Seyed Farshid Kashani-Bozorg, Chang Lae Kim, Abbas Zarei Hanzaki, Young Shik Pyoun, Jung Hyong Kim, Auezhan Amanov, Dae Eun Kim

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

The surface of β-type Ti-Nb-Ta-Zr (TNTZ) alloy, which is a promising material for biomedical applications, was treated with the ultrasonic nanocrystal surface modification (UNSM) technique to enhance its hardness. As a result, a gradient nanostructured (GNS) layer was generated in the surface; the microstructure of the top surface layer consisted of nanoscale lamellae with a width of about 60–200 nm. In addition, there were lamellar grains consisting of nanostructured subgrains having unclear and wavy boundaries. The treated surface exhibited a hardness value of ∼385 HV compared to 190 HV for the untreated alloy. It was further determined that highly dense deformation twins were generated at a depth of ∼40–150 µm below the UNSM-treated surface. These deformation twins led to a significant work hardening effect which aided in enhancing the mechanical properties. It was also found that UNSM treatment resulted in the formation of micropatterns on the surface, which would be beneficial for high bioactivity and bone regeneration performance of TNTZ implants.

Original languageEnglish
Pages (from-to)698-706
Number of pages9
JournalUltrasonics Sonochemistry
Volume39
DOIs
Publication statusPublished - 2017 Nov 1

Fingerprint

titanium alloys
Titanium
Titanium alloys
Ultrasonics
Nanoparticles
Nanocrystals
Surface treatment
nanocrystals
ultrasonics
Hardness
Bone Regeneration
hardness
Bioactivity
Strain hardening
work hardening
Bone
lamella
regeneration
bones
Mechanical properties

All Science Journal Classification (ASJC) codes

  • Chemical Engineering (miscellaneous)
  • Radiology Nuclear Medicine and imaging
  • Acoustics and Ultrasonics

Cite this

Kheradmandfard, Mehdi ; Kashani-Bozorg, Seyed Farshid ; Kim, Chang Lae ; Hanzaki, Abbas Zarei ; Pyoun, Young Shik ; Kim, Jung Hyong ; Amanov, Auezhan ; Kim, Dae Eun. / Nanostructured β-type titanium alloy fabricated by ultrasonic nanocrystal surface modification. In: Ultrasonics Sonochemistry. 2017 ; Vol. 39. pp. 698-706.
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Kheradmandfard, M, Kashani-Bozorg, SF, Kim, CL, Hanzaki, AZ, Pyoun, YS, Kim, JH, Amanov, A & Kim, DE 2017, 'Nanostructured β-type titanium alloy fabricated by ultrasonic nanocrystal surface modification', Ultrasonics Sonochemistry, vol. 39, pp. 698-706. https://doi.org/10.1016/j.ultsonch.2017.03.061

Nanostructured β-type titanium alloy fabricated by ultrasonic nanocrystal surface modification. / Kheradmandfard, Mehdi; Kashani-Bozorg, Seyed Farshid; Kim, Chang Lae; Hanzaki, Abbas Zarei; Pyoun, Young Shik; Kim, Jung Hyong; Amanov, Auezhan; Kim, Dae Eun.

In: Ultrasonics Sonochemistry, Vol. 39, 01.11.2017, p. 698-706.

Research output: Contribution to journalArticle

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AU - Kheradmandfard, Mehdi

AU - Kashani-Bozorg, Seyed Farshid

AU - Kim, Chang Lae

AU - Hanzaki, Abbas Zarei

AU - Pyoun, Young Shik

AU - Kim, Jung Hyong

AU - Amanov, Auezhan

AU - Kim, Dae Eun

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