基于声发射的 Q355E 钢及其焊接接头原位拉伸断裂行为研究

IF 0.9 4区 材料科学 Q4 MATERIALS SCIENCE, CHARACTERIZATION & TESTING Russian Journal of Nondestructive Testing Pub Date : 2024-09-23 DOI:10.1134/S1061830924600187
Penglin Zhang, Qingwei Lin, Shuwang Li, Jiaqi Wang
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引用次数: 0

摘要

风力发电塔架使用的 Q355E 钢金属在中损伤过程中会释放瞬态应力波。应力波的信息可以通过声发射检测技术进行采集。但由于缺乏直观、形象的手段,很难通过声发射信息对金属材料的中损伤进行定量评价。本文结合德本 Microtest 2kN 原位拉伸试验台、FEI Quanta 450 场发射扫描电子显微镜和 SAEU2S 声发射采集系统,构建了声发射源动态观测实验系统。结果表明,原位拉伸位移-载荷曲线与声发射信号的振幅历史之间存在良好的对应关系。在原位拉伸的不同阶段,声发射信号具有特征信号。观察了样品微观结构的变化,并通过参数分析和波形分析对拉伸过程中的特征声发射信号进行了分析。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

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Research on the In Situ Tensile Fracture Behavior of Q355E Steel and Its Welded Joints Based on Acoustic Emission

The meso-damage process of Q355E steel metal used in wind power tower is accompanied by the release of transient stress wave. The information of stress wave can be collected by acoustic emission detection technology. However, due to the lack of intuitive and visual means, it is difficult to quantitatively evaluate the meso-damage of metal materials by acoustic emission information. In this paper, Deben Microtest 2kN in situ tensile test bench, FEI Quanta 450 field emission scanning electron microscope and SAEU2S acoustic emission acquisition system are combined to build a dynamic observation experimental system of acoustic emission source. The results show that there is a good correspondence between the in situ tensile displacement-load curve and the amplitude history of the acoustic emission signal. At different stages of in situ stretching, the acoustic emission signal has characteristic signals. The changes of the microstructure of the samples were observed, and the characteristic acoustic emission signals during the stretching process were analyzed by parameter analysis and waveform analysis.

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来源期刊
Russian Journal of Nondestructive Testing
Russian Journal of Nondestructive Testing 工程技术-材料科学:表征与测试
CiteScore
1.60
自引率
44.40%
发文量
59
审稿时长
6-12 weeks
期刊介绍: Russian Journal of Nondestructive Testing, a translation of Defectoskopiya, is a publication of the Russian Academy of Sciences. This publication offers current Russian research on the theory and technology of nondestructive testing of materials and components. It describes laboratory and industrial investigations of devices and instrumentation and provides reviews of new equipment developed for series manufacture. Articles cover all physical methods of nondestructive testing, including magnetic and electrical; ultrasonic; X-ray and Y-ray; capillary; liquid (color luminescence), and radio (for materials of low conductivity).
期刊最新文献
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