3-dimensional image analysis of fatigue fracture surface.
3-dimensional image analysis of fatigue fracture surface.
复制标题
疲劳断裂表面的 3 维图像分析。
DOI：
10.2472/jsms.34.648
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发表时间：
1985
期刊：
影响因子：
--
通讯作者：
Jun Kikuchi
中科院分区：
文献类型：
--
作者：
K. Komai;Jun Kikuchi
将计算机图像处理技术应用于断口分析，开发了通用的三维断口图像分析软件。通过该软件，可以从具有足够精度的SEM断口照片的立体对中获得三维断口形貌。计算了高强度钢HT 55在空气和真空中的疲劳断口表面粗糙度，并与R=0.1和0.5时的断口表面粗糙度进行了比较，发现R=-1时，真空中断口表面粗糙度的均方根值大于空气中的均方根值。腐蚀产物诱发的楔效应在HT 55的腐蚀疲劳断口形貌的配对上也得到了清楚的证实。
Computer image processing technology has been applied to fracture surface analysis, and the generalized software for 3-dimensional fractography image analysis has been developed. By this software, it became possible to obtain 3-dimensional fracture surface topography from a stereo-pair of SEM fractograph with a sufficient precision. The fatigue fracture surface roughness of a hightensile strenght steel HT 55 in air and in vacuum was calculated, and the root mean square roughness of fracture surface in vacuum was made clear to be greater than that in air at R=-1, compared with those at R=0.1 and 0.5. The wedge effect induced by corrosion products was also clearly demonstrated on a matching-pair of corrosion-fatigue fracture surface topography of HT 55.