Abstract
Twinning induced plasticity steels are austenitic alloys in which mechanical twinning is a prominent deformation mode, and which exhibit exceptional combinations of ductility, work hardening and ultimate strength. The authors develop in the present paper a crystallographic theory to enable the quantitative investigation of the role of mechanical twinning in enhancing the properties of these alloys. It is found that the twinning strain itself makes a significant though small contribution to the total elongation and that other mechanisms must therefore be at play in determining the overall deformation behaviour.
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References
1.
Choi
H. C.
,
Ha
T. K.
,
Shin
H. C.
and
Chang
Y. W.
Scr. Mater ., 1999 , 40 , 1171 –1177 .
2.
Karaman
I.
,
Sehitoglu
H.
,
Chumlyakov
Y. I.
and
Maier
H. J.
J. Met ., 2002 , 54 , 31 –37 .
3.
Grassel
O.
and
Frommeyer
G.
Mater. Sci. Technol ., 1998 , 14 , 1213 –1216 .
4.
Bouaziz
O.
and
Guelton
N.
Mater. Sci. Eng. A, 2001, A319—A321, 246 –249 .
5.
Frommeyer
G.
,
Brx
U.
and
Neumann
P.
ISIJ Int ., 2003 , 43 , 438 –446 .
6.
Vercammen
S.
,
Blanpain
B.
,
Cooman
B. C. D.
and
Wollants
P.
Acta Mater ., 2004 , 52 , 2005 –2012 .
7.
Allain
S.
,
Chateau
J.-P.
and
Bouaziz
O.
Mater. Sci. Eng. A, 2004, A387—A389, 143 –147 .
8.
Bowles
J. S.
and
MacKenzie
J. K.
Acta Metall ., 1954 , 2 , 129 –137 .
9.
Bhadeshia
H. K. D. H.
: ‘Geometry of crystals’, 2nd edn; 2001, London, Institute of Materials.
10.
Wayman
C. M.
: ‘Introduction to the crystallography of martensitic transformations’ ; 1964 , New York , Macmillan .
11.
Kundu
S.
: ‘Transformation strain and crystallographic texture in steels’ , PhD thesis , University of Cambridge, Cambridge, UK , 2007 .
12.
Timoshenko
S. P.
and
Goodier
J. N.
‘Theory of elasticity’ ; 1982 , London , McGraw Hill International Book Company .
13.
Yang
P.
,
Xie
Q.
,
Meng
L.
,
Ding
H.
and
Tang
Z.
Scr. Mater ., 2006 , 55 , 629 –631 .
14.
Bunge
B. J.
: ‘Mathematische Methoden der Texturanalyse'; 1982, London, Butterworth.
15.
Matsuzaki
A.
,
Bhadeshia
H. K. D. H.
and
Harada
H.
Acta Metall. Mater ., 1994 , 42 , 1081 –1090 .
16.
Stewart
J. W.
,
Thomson
R. C.
and
Bhadeshia
H. K. D. H.
J. Mater. Sc i ., 1994, 29, 6079-6084.
17.
Kundu
S.
and
Bhadeshia
H. K. D. H.
Scr. Mater ., 2006 , 55 , 779 –781 .
18.
Kundu
S.
,
Hase
K.
and
Bhadeshia
H. K. D. H.
Proc. Roy. Soc. A , 2007 , 463A , 2309 –2328 .
19.
Kundu
S.
and
Bhadeshia
H. K. D. H.
Scr. Mater ., 2007 , 57 , 869 –872 .
20.
Qin
B.
: ‘Crystallography of TWIP steel’ , PhD thesis , Pohang University of Science and Technology, Korea , 2007 .
21.
Bhadeshia
H. K. D. H.
: ISIJ Int ., 2002 , 42 , 1059 –1060 .