锆金属拉伸的声发射特性
Tension Acoustic Emission Character on Zirconium Metal
摘 要
通过锆材拉伸过程的声发射测试, 研究了锆金属拉伸过程中的声发射参数和频率特性。研究结果表明, 通道撞击等参数能较好地表征锆金属拉伸过程不同阶段的损伤状况, 拉伸过程中声发射信号频率约0~500 kHz, 中心频率约为130 kHz。研究结果对锆制压力容器现场声发射检测和监测具有重要的参考意义。
拉伸
声发射检测
压力容器
Zirconium
Tension
Acoustic emssion(AE)
Pressure vessel
Abstract
Acoustic emission test was done during tension on zirconium metal, acoustic emission signals’ parameters and frequency characters were analysed. The results indicated that the channel hits and so on parameters had good ability to characterize damage status of different phases of tension, the scope of signal frequencies was from 0 to 500 thousands heltz, and the central frequency was about 130 thousands heltz. The conclusions were very valuable to detect and monitor pressure vessels made of zirconium by accostic emission technology.
中图分类号 TG115.28
所属栏目 试验研究
基金项目
收稿日期 2009/11/9
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备注张忠政(1977-), 男, 博士研究生, 工程师, 研究方向为化工装备安全技术及工程。
引用该论文: ZHANG Zhong-Zheng,GONG Jian-Ming,LIANG Hua. Tension Acoustic Emission Character on Zirconium Metal[J]. Nondestructive Testing, 2010, 32(12): 944～947
张忠政,巩建鸣,梁 华. 锆金属拉伸的声发射特性[J]. 无损检测, 2010, 32(12): 944～947
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参考文献
【1】沈功田, 李金海.压力容器无损检测——声发射检测技术[J].无损检测, 2004, 26(9): 457-463.
【2】Ennaceur C, Laksimi A, Herve′ C, et al. Monitoring crack growth in pressure vessel steels by the acoustic emission technique and the method of potential difference[J]. International Journal of Pressure Vessels and piping, 2006, 83(3): 197-204.
【3】GB/T 228—2002 金属材料 室温拉伸试验方法[S].
【4】吴望周.化工设备断裂失效分析基础[M].南京: 东南大学出版社, 1991: 34-37.
【2】Ennaceur C, Laksimi A, Herve′ C, et al. Monitoring crack growth in pressure vessel steels by the acoustic emission technique and the method of potential difference[J]. International Journal of Pressure Vessels and piping, 2006, 83(3): 197-204.
【3】GB/T 228—2002 金属材料 室温拉伸试验方法[S].
【4】吴望周.化工设备断裂失效分析基础[M].南京: 东南大学出版社, 1991: 34-37.
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