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FRACTAL ANALYSIS OF DEGRADED TURBINE ROTOR STEEL BY SLIT-ISLAND TECHNIQUE

机译:狭缝岛技术降解汽轮机转子钢分形分流分析

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Since fracture surface presents clear evidence to describe the circumstances of material failure event, analysis of fracture surface should provide plenty of useful information for failure prevention. Thus if we extract proper information from the fracture surface, the safety evaluation for plant component could be more accurate. In general, the chaotic morphology of fracture surface is determined by the degree of material degradation as well as by other factors such as type of load, geometry of specimen, notch condition, microstructure of material and environment. In this research we developed a fractal analysis technology for the fracture surface of aged turbine rotor steel based on the slit-island technique using an image analyzer. Moreover the correlations between the fractal dimension and the aging time were studied.
机译:由于裂缝表面呈现明确的证据来描述材料故障事件的情况,因此骨折表面的分析应提供大量有用的预防信息信息。因此,如果我们从骨折表面提取适当的信息,植物组分的安全评估可能更准确。通常,裂缝表面的混沌形态由材料劣化程度以及其他因素,如载荷类型,标本的几何形状,材料和环境的微观结构。在本研究中,我们使用图像分析仪基于狭缝岛技术对老化汽轮机转子钢的断裂表面进行了分数分析技术。此外,研究了分形维数和老化时间之间的相关性。

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