TY - JOUR
T1 - Extra-strengthening in a harmonic structure designed pure titanium due to preferential recrystallization phenomenon through thermomechanical treatment
AU - Sharma, Bhupendra
AU - Miyakoshi, Motoki
AU - Vajpai, Sanjay Kumar
AU - Dirras, Guy
AU - Ameyama, Kei
N1 - Funding Information:
This work was supported by the Japan Society for the Promotion of Science ( JSPS ) Grants-in-Aid for Scientific Research (KAKENHI) Grant Numbers JP20K15064, JP18K18962, and JP18H05256. These supports are gratefully appreciated.
Publisher Copyright:
© 2020 Elsevier B.V.
PY - 2020/10/21
Y1 - 2020/10/21
N2 - The effect of thermomechanical processing (TMP), consisting of cold rolling followed by annealing, on the microstructure and mechanical properties of Harmonic Structure designed commercially pure Ti (HS–Ti) was studied. The TMP of HS-Ti led to the evolution of a peculiar preferentially recrystallized structure, localized in the Shell and Shell-Core interface regions. The underlying mechanism for such a unique microstructural evolution in the TMP HS-Ti has been proposed and discussed. The TMP treated HS-Ti specimens exhibited considerably higher strength values and comparable ductility with respect to its conventional homogeneous structured Ti (Homo-Ti) and as-sintered HS-Ti counterparts. The present work demonstrated that it is feasible to further enhance the superior mechanical properties of harmonic-structured materials through controlling the volume fraction and the grain size of the Core/Shell via controlling TMP parameters.
AB - The effect of thermomechanical processing (TMP), consisting of cold rolling followed by annealing, on the microstructure and mechanical properties of Harmonic Structure designed commercially pure Ti (HS–Ti) was studied. The TMP of HS-Ti led to the evolution of a peculiar preferentially recrystallized structure, localized in the Shell and Shell-Core interface regions. The underlying mechanism for such a unique microstructural evolution in the TMP HS-Ti has been proposed and discussed. The TMP treated HS-Ti specimens exhibited considerably higher strength values and comparable ductility with respect to its conventional homogeneous structured Ti (Homo-Ti) and as-sintered HS-Ti counterparts. The present work demonstrated that it is feasible to further enhance the superior mechanical properties of harmonic-structured materials through controlling the volume fraction and the grain size of the Core/Shell via controlling TMP parameters.
UR - http://www.scopus.com/inward/record.url?scp=85091198223&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85091198223&partnerID=8YFLogxK
U2 - 10.1016/j.msea.2020.140227
DO - 10.1016/j.msea.2020.140227
M3 - Article
AN - SCOPUS:85091198223
VL - 797
JO - Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing
JF - Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing
SN - 0921-5093
M1 - 140227
ER -