1. Technology Center of Ma’anshan Steel and Iron Corporation, Ma’anshan 243000, Anhui, China; 2. Department of Materials Physics, University of Science and Technology Beijing, Beijing 100083, China
Abstract：The mechanism of flaking in wheel steel and the effects of flaking on fracture were investigated. The results show that a blisters nucleate and grow through diffusion and gathering of hydrogen atoms and vacancies when the hydrogen pressure is increased, microcracks initiate at the wall of the blister,and propagate which results in formation of flaking. The fracture with flaking is quasicleavage, similar to that of hydrogeninduced delayed cracking. The fracture morphology of the sample containing flaking is dependent upon the failure mode and the thickness of the sample. There is no effect of flaking on fracture surface morphology besides secondary cracks and local quasicleavage fracture.
江波;陈刚;崔银会;任学冲;褚武扬. 车轮钢中的白点（一）[J]. 钢铁, 2007, 42(4): 61-0.
JIANG Bo;CHEN Gang;CUI Yinhui;REN Xuechong;CHU Wuyang. Research of Flaking in Wheel Steel （Ⅰ）. Iron and Steel, 2007, 42(4): 61-0.
2007, Vol. 42 
