Strain rate sensitivity index's theoretical formulae expressed by experimental parameters and i

• 作 者: SONG Yuquan WANG Xiwen LIU Yin
• 机 构: Superplastic and Plastic Research Institute of Jilin University
• 出 处: 自然科学进展
• 发表日期: 2004年期
• 关键词: plastic tensile forming strain rate sensitivity index experimental parameters

A group of formulae for measuring strain rate sensitivity index is established under the conditions of constant strain rate, constant velocity and constant load. And measuring methods are given corresponding to each kind of experimental curves. Furthermore the experimental results are measured and compared on Zn-wt5%Al alloy at room temperature (18 ℃), which shows that this kind of alloy is structural sensitive even at room temperature.