Effect of the High-Pressure Torsion (HPT) and Subsequent Isothermal Annealing on the Phase Transformation in Biomedical Ti15Mo Alloy

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389021%3A_____%2F19%3A00519283" target="_blank" >RIV/61389021:_____/19:00519283 - isvavai.cz</a>

Alternative codes found

RIV/00216208:11320/19:10402829

Result on the web

<a href="https://www.mdpi.com/2075-4701/9/11/1194" target="_blank" >https://www.mdpi.com/2075-4701/9/11/1194</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/met9111194" target="_blank" >10.3390/met9111194</a>

Result language

angličtina

Original language name

Effect of the High-Pressure Torsion (HPT) and Subsequent Isothermal Annealing on the Phase Transformation in Biomedical Ti15Mo Alloy

Original language description

Ti15Mo metastable beta Ti alloy was solution treated and subsequently deformed by high-pressure torsion (HPT). HPT-deformed and benchmark non-deformed solution-treated materials were annealed at 400 degrees C and 500 degrees C in order to investigate the effect of UFG microstructure on the alpha-phase precipitation. Phase evolution was examined using laboratory X-ray diffraction (XRD) and by high-energy synchrotron X-ray diffraction (HEXRD), which provided more accurate measurements. Microstructure was observed by scanning electron microscopy (SEM) and microhardness was measured for all conditions. HPT deformation was found to significantly enhance the alpha phase precipitation due the introduction of lattice defects such as dislocations or grain boundaries, which act as preferential nucleation sites. Moreover, in HPT-deformed material, alpha precipitates are small and equiaxed, contrary to the alpha lamellae in the non-deformed material. omega phase formation is suppressed due to massive alpha precipitation and consequent element partitioning. Despite that, HPT-deformed material after ageing exhibits the high microhardness exceeding 450 HV.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

20501 - Materials engineering

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2019

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Metals

ISSN

2075-4701

e-ISSN

—

Volume of the periodical

9

Issue of the periodical within the volume

11

Country of publishing house

CH - SWITZERLAND

Number of pages

14

Pages from-to

1194

UT code for WoS article

000504411600062

EID of the result in the Scopus database

2-s2.0-85074632225