Biomedical Engineering Reference
In-Depth Information
Rolling
Swaging
1400
50
:
0.2% proof stress
:
Tensile strength
:
Elongation
1200
40
1000
30
800
600
20
400
10
200
0
0
0
Working ratio for cold rolling or cold swaging
(%)
10
20
30
40
50
60
70
80
90
100
Fig. 1. Tensile properties of TNTZ subjected to cold rolling or cold sawaging as a function of
working ratio.
100
90
80
70
60
50
40
30
20
10
: Rolling
: Swaging
0
10
20
30
40
50
60
70
80
90
100
Working ratio of cold rolling or cold swaging (%)
Fig. 2. Young's modulus of TNTZ subjected to cold rolling or cold swaging as a function of
working ratio.
The tensile strength and 0.2% proof strength of cold rolled and swaged TNTZ increase with
increasing working ratio up to approximately 20 % and then become almost constant. The
ductility (elongation) of cold rolled TNTZ decreases with increasing cold working ratio, but
that of swaged TNTZ decreases with increasing cold working ratio up to approximately
20 % and then becomes constant while maintaining high elongation. The tensile and 0.2 %
