In 1998, he obtained a doctor's degree from the Institute of metals, Chinese Academy of Sciences. From 2000 to 2001, he was a research fellow funded by the society for the promotion of Science (JSPS) of the comprehensive institute of industrial technology in Japan. From 2001 to 2003, he was a Humboldt scholar at the Leibniz Institute of solid materials. From January to December 2003, he was a visiting scholar of Mapu Institute of metals in Stuttgart, Germany. He returned to the Institute of metals, Chinese Academy of Sciences in 2004. He served as member of international strength Committee (icsma), member of international metal mechanical fatigue Committee (icmfm), director of China Society for materials research, Secretary General / Director of fatigue branch of China Society for materials research, deputy director / Executive Director of Youth Committee of China Society for materials research, and J. mater. SCI Executive deputy editor of technical journal [4], associate editor of Chinese and English edition of Acta metallurica [5-6], mater. SCI. Eng., a, inter. J. fatigue and editorial board member of Science Bulletin. He has won honors and awards, such as leading young and middle-aged talents in the 'ten thousand talents program', the 'young and middle-aged experts with outstanding contributions' in the national ten million talent project, and China's highly cited scholars.

He is mainly engaged in the research of fracture mechanics, fracture mechanism and fatigue life of metals. The evolution rule of low cycle fatigue dislocation configuration of fcc metals was revealed by crystallographic orientation and stacking fault energy; the mechanism of grain boundary fatigue cracking of copper bicrystals with different grain boundaries was revealed, and the critical criterion of twin interface fatigue cracking was proposed; the stacking fault energy effect of strengthening and toughening of FCC Metals and alloys was revealed, and it was proposed that the tensile strength and elongation could be increased simultaneously by reducing stacking fault energy The fatigue strength is also improved. The asymmetry of tensile and compressive shear fracture of amorphous alloy materials is revealed from macroscopic and microscopic aspects. The general fracture laws of various amorphous alloy materials are summarized. A new unified tensile fracture criterion ellipse criterion is proposed by summarizing the fracture behavior of different materials and mechanical analysis The Mises criterion and the Mohr Coulomb criterion are organically unified. The research results have been published in Acta mater., Phys. Rev. Lett., prog. Mater. SCI., nature mate. And nature commun. Etc., and have been cited by SCI papers for more than 7800 times [7-8], more than 560 times for a single paper [7], and more than 30 times of invited reports in international academic conferences. Some of the research results have won the second prize of natural science of Liaoning Province and Liaoning Province Youth Science and Technology Award [2].