TY - GEN
T1 - Temperature dependence of mechanical properties in dual phase ti-6al-4v
AU - Anne, Bhargavi Rani
AU - Tanaka, Masaki
AU - Morikawa, Tatsuya
N1 - Funding Information:
This work is partly supported by the Structural Materials for Innovation of the Cross Ministerial Strategic Innovation Promotion Program (SIP) of Japan Science and Technology (JST), and JSPS KAKENHI Grant Number JP15H04147.
Funding Information:
This work is partly supported by the Structural Materials for Innovation of the Cross
Publisher Copyright:
© 2018 Trans Tech Publications, Switzerland.
PY - 2018
Y1 - 2018
N2 - The temperature-dependent mechanical property of a forged Ti-6Al-4V (bimodal structure; α and α+ß phases) was investigated. Tensile test was performed at a wide range of temperatures between 77K to 550K. Fatigue test was also performed with corner notched specimens at the temperature range between room temperature and 550K. The temperature dependency of both the yield stress and activation volume was established from the tensile tests. The strong dependency of yield stress and activation volume was observed with respective to the temperature. At lower temperatures, from 77K to 250K, there was a decrease in yield stress with the increase in temperature, whereas abnormality in the yield stress was observed approximately at 275K, and the yield stress was decreased again with the increase in temperature at 325K. Activation volume was increased with increasing the temperature. The activation volume also shows abnormality at the temperatures where the abnormal trend was observed from yield stress. The reasons for the change in yield stress and activation volume with temperature were studied in detail.
AB - The temperature-dependent mechanical property of a forged Ti-6Al-4V (bimodal structure; α and α+ß phases) was investigated. Tensile test was performed at a wide range of temperatures between 77K to 550K. Fatigue test was also performed with corner notched specimens at the temperature range between room temperature and 550K. The temperature dependency of both the yield stress and activation volume was established from the tensile tests. The strong dependency of yield stress and activation volume was observed with respective to the temperature. At lower temperatures, from 77K to 250K, there was a decrease in yield stress with the increase in temperature, whereas abnormality in the yield stress was observed approximately at 275K, and the yield stress was decreased again with the increase in temperature at 325K. Activation volume was increased with increasing the temperature. The activation volume also shows abnormality at the temperatures where the abnormal trend was observed from yield stress. The reasons for the change in yield stress and activation volume with temperature were studied in detail.
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U2 - 10.4028/www.scientific.net/MSF.941.1479
DO - 10.4028/www.scientific.net/MSF.941.1479
M3 - Conference contribution
AN - SCOPUS:85064090242
SN - 9783035712087
T3 - Materials Science Forum
SP - 1479
EP - 1483
BT - THERMEC 2018
A2 - Shabadi, R.
A2 - Ionescu, Mihail
A2 - Jeandin, M.
A2 - Richard, C.
A2 - Chandra, Tara
PB - Trans Tech Publications Ltd
T2 - 10th International Conference on Processing and Manufacturing of Advanced Materials, 2018
Y2 - 9 July 2018 through 13 July 2018
ER -