Premium
Removal of the α ‐Case Layer from Precision‐Cast Cellular TiAl6Nb7 to be Used for Biomedical Applications
Author(s) -
Guillén Teodolito,
Ohrndorf Arne,
Christ HansJürgen,
Hagemann Katrin,
BührigPolaczek Andreas,
Krupp Ulrich
Publication year - 2009
Publication title -
advanced engineering materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 114
eISSN - 1527-2648
pISSN - 1438-1656
DOI - 10.1002/adem.200900097
Subject(s) - materials science , brittleness , layer (electronics) , investment casting , ductility (earth science) , casting , mold , titanium , metallurgy , nanotechnology , composite material , creep
The present work deals with the chemical removal of the α‐case layer formed during precision casting of cellular TiAl6Nb7 sponges for biomedical applications. The major part of the brittle α‐case layer can be attributed to chemical reaction between titanium and the investment mold components. To improve the ductility of the cell struts by eliminating the brittle surface, a pickling‐vibration treatment was developed by which the α‐case layer is chemically removed.