TY - GEN
T1 - Microstructual analysis of stress relieving on the thermal deformation behaviors of titanium tailor-welded blanks
AU - Lai, Chi Ping
AU - Chan, Luen Chow
PY - 2013/4/15
Y1 - 2013/4/15
N2 - This paper aims to investigate the microstructual analysis of titanium tailor-welded blanks (Ti-TWBs) undergoing the stress relieving (SR) during a thermal deformation. A modified HILLE machine, with a specific heating device that can adjust the working temperature, was employed in this study. Qualified Ti-TWBs specimens were prepared in different widths and lengths. In order to compare the performance of both SR and non-SR Ti-TWBs, the formability analyses at room temperature and around 550degC were then carried out accordingly. The limit dome heights (LDH) of these specimens were measured and it was found that the ductility of the SR Ti-TWBs was improved due to the removal of the hardening effect as well the working stress during the cold working. Moreover, the fracture surface of the Ti-TWBs also revealed that the microstructure was fine and equaxial after the heat treatment. It can be concluded that the microstructual evolution is useful to enhance the strength of Ti-TWBs.
AB - This paper aims to investigate the microstructual analysis of titanium tailor-welded blanks (Ti-TWBs) undergoing the stress relieving (SR) during a thermal deformation. A modified HILLE machine, with a specific heating device that can adjust the working temperature, was employed in this study. Qualified Ti-TWBs specimens were prepared in different widths and lengths. In order to compare the performance of both SR and non-SR Ti-TWBs, the formability analyses at room temperature and around 550degC were then carried out accordingly. The limit dome heights (LDH) of these specimens were measured and it was found that the ductility of the SR Ti-TWBs was improved due to the removal of the hardening effect as well the working stress during the cold working. Moreover, the fracture surface of the Ti-TWBs also revealed that the microstructure was fine and equaxial after the heat treatment. It can be concluded that the microstructual evolution is useful to enhance the strength of Ti-TWBs.
KW - Microstructual analysis
KW - Stress relieving
KW - Thermal deformation
KW - Titanium tailor-welded blanks
UR - http://www.scopus.com/inward/record.url?scp=84875996054&partnerID=8YFLogxK
U2 - 10.4028/www.scientific.net/AMR.677.169
DO - 10.4028/www.scientific.net/AMR.677.169
M3 - Conference article published in proceeding or book
SN - 9783037856420
T3 - Advanced Materials Research
SP - 169
EP - 172
BT - Micro Nano Devices, Structure and Computing Systems II
T2 - 2013 2nd International Conference on Micro Nano Devices, Structure and Computing Systems, MNDSCS 2013
Y2 - 23 January 2013 through 24 January 2013
ER -