Ultrafine-grained titanium for medical implants

Patent · Tue Jan 01 00:00:00 EST 2002

OSTI ID:874486

Zhu, Yuntian T ^[1]; Lowe, Terry C ^[2]; Valiev, Ruslan Z ^[3]; Stolyarov, Vladimir V ^[3]; Latysh, Vladimir V ^[3]; Raab, Georgy J ^[3]

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1. Los Alamos, NM
2. Santa Fe, NM
3. Ufa, RU

We disclose ultrafine-grained titanium. A coarse-grained titanium billet is subjected to multiple extrusions through a preheated equal channel angular extrusion (ECAE) die, with billet rotation between subsequent extrusions. The resulting billet is cold processed by cold rolling and/or cold extrusion, with optional annealing. The resulting ultrafine-grained titanium has greatly improved mechanical properties and is used to make medical implants.

• Research Organization: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
• DOE Contract Number: W-7405-ENG-36
• Assignee: The Regents of the University of California (Los Alamos, NM)
• Patent Number(s): US 6399215
• OSTI ID: 874486
• Country of Publication: United States
• Language: English

Related Subjects

ultrafine-grained
titanium
medical
implants
disclose
coarse-grained
billet
subjected
multiple
extrusions
preheated
equal
channel
angular
extrusion
ecae
die
rotation
subsequent
resulting
cold
processed
rolling
andor
optional
annealing
greatly
improved
mechanical
properties
mechanical properties
cold rolling
/428/72/148/420/623/