Removal of the α-Case layer from precision-cast cellular TiAl6Nb7 to be used for biomedical applications

Teodolito Guillén; Arne Ohrndorf; Hans Jürgen Christ; Katrin Hagemann; Andreas Bührig-Polaczek; Ulrich Krupp

doi:10.1002/adem.200900097

Removal of the α-Case layer from precision-cast cellular TiAl6Nb7 to be used for biomedical applications

Teodolito Guillén
, Arne Ohrndorf
, Hans Jürgen Christ
, Katrin Hagemann
, Andreas Bührig-Polaczek
, Ulrich Krupp

Research output: Contribution to journal › Article › peer-review

10 Scopus citations

Abstract

A study was conducted to demonstrate the removal of α-case layer from precision-cast cellular TiAl6Nb7 alloy and use it in biomedical applications. A precision-casting process was developed to produce metallic sponges based on the Ti alloy, Ti67 and conduct investigations. MgO + Al₂O₃ + CaO-based investments were used as mold material in a centrifugal casting machine to perform the precision-casting process. Casting of Ti67 specimens were carried out under inert argon atmosphere along with high centrifugal forces allowing for proper filling of the fine-structured mold. The samples were ultrasonically cleaned in ethanol for 10 minutes to remove any residues of the investment material from the surface before pickling. The material's microstructure and any change in the surface topography and the removal of the α-case layer during the pickling process was analyzed by scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDS).

Original language	English
Pages (from-to)	680-684
Number of pages	5
Journal	Advanced Engineering Materials
Volume	11
Issue number	8
DOIs	https://doi.org/10.1002/adem.200900097
State	Published - Aug 2009
Externally published	Yes

Access to Document

10.1002/adem.200900097

Cite this

@article{bd975cd1fa67482e9f57581f624b9cb6,

title = "Removal of the α-Case layer from precision-cast cellular TiAl6Nb7 to be used for biomedical applications",

abstract = "A study was conducted to demonstrate the removal of α-case layer from precision-cast cellular TiAl6Nb7 alloy and use it in biomedical applications. A precision-casting process was developed to produce metallic sponges based on the Ti alloy, Ti67 and conduct investigations. MgO + Al2O3 + CaO-based investments were used as mold material in a centrifugal casting machine to perform the precision-casting process. Casting of Ti67 specimens were carried out under inert argon atmosphere along with high centrifugal forces allowing for proper filling of the fine-structured mold. The samples were ultrasonically cleaned in ethanol for 10 minutes to remove any residues of the investment material from the surface before pickling. The material's microstructure and any change in the surface topography and the removal of the α-case layer during the pickling process was analyzed by scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDS).",

author = "Teodolito Guill{\'e}n and Arne Ohrndorf and Christ, \{Hans J{\"u}rgen\} and Katrin Hagemann and Andreas B{\"u}hrig-Polaczek and Ulrich Krupp",

year = "2009",

month = aug,

doi = "10.1002/adem.200900097",

language = "Ingl{\'e}s",

volume = "11",

pages = "680--684",

journal = "Advanced Engineering Materials",

issn = "1438-1656",

number = "8",

}

TY - JOUR

T1 - Removal of the α-Case layer from precision-cast cellular TiAl6Nb7 to be used for biomedical applications

AU - Guillén, Teodolito

AU - Ohrndorf, Arne

AU - Christ, Hans Jürgen

AU - Hagemann, Katrin

AU - Bührig-Polaczek, Andreas

AU - Krupp, Ulrich

PY - 2009/8

Y1 - 2009/8

N2 - A study was conducted to demonstrate the removal of α-case layer from precision-cast cellular TiAl6Nb7 alloy and use it in biomedical applications. A precision-casting process was developed to produce metallic sponges based on the Ti alloy, Ti67 and conduct investigations. MgO + Al2O3 + CaO-based investments were used as mold material in a centrifugal casting machine to perform the precision-casting process. Casting of Ti67 specimens were carried out under inert argon atmosphere along with high centrifugal forces allowing for proper filling of the fine-structured mold. The samples were ultrasonically cleaned in ethanol for 10 minutes to remove any residues of the investment material from the surface before pickling. The material's microstructure and any change in the surface topography and the removal of the α-case layer during the pickling process was analyzed by scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDS).

AB - A study was conducted to demonstrate the removal of α-case layer from precision-cast cellular TiAl6Nb7 alloy and use it in biomedical applications. A precision-casting process was developed to produce metallic sponges based on the Ti alloy, Ti67 and conduct investigations. MgO + Al2O3 + CaO-based investments were used as mold material in a centrifugal casting machine to perform the precision-casting process. Casting of Ti67 specimens were carried out under inert argon atmosphere along with high centrifugal forces allowing for proper filling of the fine-structured mold. The samples were ultrasonically cleaned in ethanol for 10 minutes to remove any residues of the investment material from the surface before pickling. The material's microstructure and any change in the surface topography and the removal of the α-case layer during the pickling process was analyzed by scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDS).

UR - https://www.scopus.com/pages/publications/69549090303

U2 - 10.1002/adem.200900097

DO - 10.1002/adem.200900097

M3 - Artículo

AN - SCOPUS:69549090303

SN - 1438-1656

VL - 11

SP - 680

EP - 684

JO - Advanced Engineering Materials

JF - Advanced Engineering Materials

IS - 8

ER -

Removal of the α-Case layer from precision-cast cellular TiAl6Nb7 to be used for biomedical applications

Abstract

Access to Document

Other files and links

Fingerprint

Cite this