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Publication
Featured researches published by Lei Yongping.
Journal of Materials Engineering and Performance | 2003
Wang Weibin; Shi Yaowu; Sha Peng; Lei Yongping; Tian Zhiling
A 400 MPa ultra-fine grain steel possesses high strength and toughness. Due to its fine grain size, the heat affect zone (HAZ) of the weld joint will soften during welding. The weldability of 400 MPa ultra-fine reinforced steel bar of flash butt welding is investigated by using the micro metallographical examination and macro-mechanical-property tests. The joint of flash butt welding has a superior mechanical property. The HAZ in the weld joint does not show apparent softening. There is only a localized softening spot inside the weld seam, which does not affect the property of the whole joint. Therefore, flash butt welding is appropriate for joining the 400 MPa ultra-fine grain reinforced steel bars. The resulting weld joint has excellent mechanical properties.
Archive | 2013
Xia Zhidong; Zuo Xinlang; Lei Yongping; Yang Xiaojun; Guo Fu; Shi Yaowu; Zhang Xing
Archive | 2013
Xia Zhidong; Zhao Shaofan; Zhou Hu; Zhang Xing; Liu Xiaohei; Lei Yongping; Guo Fu; Shi Yaowu
Archive | 2005
Shi Yaowu; Tian Jun; Lei Yongping
Archive | 2012
Yang Xiaojun; Zheng Jiachun; Lei Yongping; Xia Zhidong; Guo Fu
Archive | 2005
Lei Yongping; Xia Zhidong; Shi Yaowu
Archive | 2005
Shi Yaowu; Hao Hu; Lei Yongping
Archive | 2014
Xia Zhidong; Wang Feng; Li Tingting; Pang Yi; Lei Yongping; Guo Fu
Archive | 2013
Guo Fu; Zuo Yong; Ma Limin; Xia Zhidong; Lei Yongping; Li Xiaoyan; Shu Yutian
Archive | 2004
Lei Yongping; Xia Zhidong; Shi Yaowu
