Fracture of severely plastically deformed titanium
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In: Materials letters, Vol. 309.2022, No. 15 February, 131382, 15.02.2022.
Research output: Contribution to journal › Article › Research › peer-review
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TY - JOUR
T1 - Fracture of severely plastically deformed titanium
AU - Völker, Bernhard
AU - Wurster, Stefan
AU - Pippan, Reinhard
AU - Hohenwarter, Anton
N1 - Publisher Copyright: © 2021 Elsevier B.V.
PY - 2022/2/15
Y1 - 2022/2/15
N2 - The mechanical properties with emphasis on the fracture behaviour of ultrafine-grained Ti processed by high pressure torsion were evaluated. Through this process a substantial refinement of the microstructure was induced. As a consequence, a pronounced increase of tensile strength was achieved compared to conventional Ti while the ductility exhibited only a minor reduction after processing. The fracture toughness in terms of the critical stress intensity factor and crack tip opening displacement was evaluated in different crack growth directions and showed a pronounced orientation dependency, which can be related to the typically elongated microstructure induced by this deformation method.
AB - The mechanical properties with emphasis on the fracture behaviour of ultrafine-grained Ti processed by high pressure torsion were evaluated. Through this process a substantial refinement of the microstructure was induced. As a consequence, a pronounced increase of tensile strength was achieved compared to conventional Ti while the ductility exhibited only a minor reduction after processing. The fracture toughness in terms of the critical stress intensity factor and crack tip opening displacement was evaluated in different crack growth directions and showed a pronounced orientation dependency, which can be related to the typically elongated microstructure induced by this deformation method.
KW - High pressure torsion
KW - Severe plastic deformation
KW - Titanium
KW - Ultrafine-grained
UR - http://www.scopus.com/inward/record.url?scp=85120609835&partnerID=8YFLogxK
U2 - 10.1016/j.matlet.2021.131382
DO - 10.1016/j.matlet.2021.131382
M3 - Article
AN - SCOPUS:85120609835
VL - 309.2022
JO - Materials letters
JF - Materials letters
SN - 0167-577X
IS - 15 February
M1 - 131382
ER -
