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Featured researches published by Tian Lei.
Rare Metal Materials and Engineering | 2017
Yang Jun; Bi Zongyue; Tian Lei; Wang Jingli; Liu Haizhang
Abstract Effects of annealing temperature on the phase transformation and the low temperature deformation characteristics in the deformed Ti-51.1Ni (at%) shape memory alloy (SMA) were investigated by differential scanning calorimetry (DSC), optical microscope (OM) and tensile test. The results show that the transformation types of Ti-51.1Ni alloy are changing from A→R/M→R→A to A→R→M/M→R→A to A→R→M/M→A (A-parent phase B2, R-R phase, M-martensite phase) upon cooling/heating along with increasing annealing temperature. The R transformation temperatures and martensite temperature hysteresis decrease, while the M transformation temperature increases and the R temperature hysteresis nearly keeps at about 6.5 °C. When deformation happen at 10 °C, the 400∼550 °C annealed Ti-51.1Ni SMA exhibits as the shape memory effect (SME) + superelasticity (SE), the 600∼700 °C annealed SMA shows SE, and the characteristics of alloy change from SME + SE to SE. In addition, the annealing recrystallization temperature of Ti-51.1Ni SMA is 590 °C, and the 590∼650 °C annealed alloy could obtain excellent capability of plastic deformation and 50.83 % values of fracture strain, so the forming processing temperature could be in the range of 590∼650 °C. When the Ti-51.1Ni alloy are used for energy consumption of damper and damping device, the suitable annealing temperature could be higher than 550 °C, and for making superelastic device, the suitable annealing temperature could be below 400 °C or above 600 °C.
Archive | 2016
Bi Zongyue; Yang Jun; Liu Haizhang; Tian Lei
Archive | 2016
Bi Zongyue; Yang Jun; Tian Lei; Liu Haizhang; Zhang Wanpeng; Yang Yaobin
Archive | 2017
Yang Wenbo; Dong Zhenzhen; Zheng Bing; Ma Ying; Ma Yin; Fang Huali; Wang Fengyan; Tian Lei; Cao Jiansheng; Wang Mingxu; Liu Tingting
Archive | 2017
Bi Zongyue; Zhao Hongbo; Niu Hui; Liu Haizhang; Liu Bin; Chen Changqing; Fu Hongqiang; Yang Jun; Xi Minmin; Niu Aijun; Zhao Yong; Zhang Peng; Huang Xiaohui; Bao Zhigang; Liu Gangwei; Tian Lei
Archive | 2017
Tian Lei; Yang Wenbo; Dong Zhenzhen; Zheng Bing; Ma Ying; Ma Yin; Fang Huali; Wang Fengyan; Cao Jiansheng; Wang Mingxu; Liu Tingting; Tian Daqi; Han Mengyang; Dang Miao
Archive | 2017
Ma Yin; Fang Huali; Wang Fengyan; Tian Lei; Yang Wenbo; Dong Zhenzhen; Zheng Bing; Ma Ying; Bi Xinxi; Liu Tingting; Wang Mingxu
Archive | 2017
Bi Zongyue; Yang Jun; Liu Haizhang; Niu Hui; Tian Lei; Zhao Yong; Xi Minmin; Liu Gangwei; Zhao Hongbo; Liu Bin; Bao Zhigang; Huang Xiaohui; Chen Changqing; Niu Aijun
Archive | 2017
Zheng Bing; Ma Ying; Ma Yin; Fang Huali; Wang Fengyan; Tian Lei; Yang Wenbo; Dong Zhenzhen; Cao Jiansheng; Wang Mingxu; Liu Tingting
Archive | 2017
Tian Lei; Yang Wenbo; Dong Zhenzhen; Wang Mingxu; Liu Tingting; Han Mengyang; Tian Daqi; Dang Miao