Measurement of dislocation density in cold-drawn steel wires by means of X-Ray Bragg profiles analysis

摘要：

　　Cold-drawn pearlitic steel wires are widely used in numerous engineering fields.One of the most powerful analysis methods on determining the dislocation character of this heavily cold worked material is to investigate the X ray diffraction line-profile broadening.Fourier line-broadening analysis in steel wires with near eutectoid composition indicates that with cumulative true strains,the initial dislocation density of 6×1014m-2 in the rods increases at least one magnitude in wires.Up to 1.5xl016m-2 of dislocation density is found in the ferrite lamella of wires with a true strain of 2.77.

关键词： Cold-drawn wire X-ray diffraction Fourier line-broadening analysis dislocation density

作者: Yang Fan Fan Yingying Jin Yiming

作者单位: Solar Energy Research Center, School of Energy and Environment, Southeast University, Nanjing,210096 Southeast University Library, Southeast University, Nanjing, 210096Jiangsu Province, People Republic

会议类型: 国际会议

会议名称: the 2012 International Conference on Frontiers of Mechanical Engineering and Materials Engineering (机械工程与材料工程国际会议())

会议地点: 香港

会议语种:英文

页码: 1054-1059

在线出版日期: 2012-07-27（万方平台首次上网日期，不代表论文的发表时间）