| 1 | Fatigue Property of Nano-grained Delaminated Low-carbon Steel Sheet显示文摘Tension-tension fatigue life tests on nano-grained delaminated low-carbon steel sheet under different fatigue loads are carried out to study the fatigue properties of the steel.The three-dimensional microstructures of the steel are observed by TEM.In addition,the morphology of the fatigue fracture of the specimen under different loads is observed by SEM.The results show that micro-cracks form on the weak interface of the nano-grained steel under low-stress conditions,which hinders the propagation of the main cracks and reduces the fatigue crack propagation rate,resulting in the extending fatigue life of the steel. | X. Li T.F. Jing M.M. Lu R. Xu B.Y. Liang J.W. Zhang | 2011 | Journal of Materials Science & Technology2011，27，4： | 3 |
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