• 中国科技论文统计源期刊
  • 中文核心期刊
  • 中国科技核心期刊
  • 中国机械工程学会无损检测分会会刊
高级检索

TOFD技术在薄壁堆焊层裂纹缺陷检测中的应用

刘晴岩, 郝以运, 张 俭, 张 伟

刘晴岩, 郝以运, 张 俭, 张 伟. TOFD技术在薄壁堆焊层裂纹缺陷检测中的应用[J]. 无损检测, 2010, 32(5): 364-366.
引用本文: 刘晴岩, 郝以运, 张 俭, 张 伟. TOFD技术在薄壁堆焊层裂纹缺陷检测中的应用[J]. 无损检测, 2010, 32(5): 364-366.
LIU Qing-Yan, HAO Yi-Yun, ZHANG Jian, ZHANG Wei. Inspection of Overlay Welding Crack by TOFD Technique[J]. Nondestructive Testing, 2010, 32(5): 364-366.
Citation: LIU Qing-Yan, HAO Yi-Yun, ZHANG Jian, ZHANG Wei. Inspection of Overlay Welding Crack by TOFD Technique[J]. Nondestructive Testing, 2010, 32(5): 364-366.

TOFD技术在薄壁堆焊层裂纹缺陷检测中的应用

详细信息
    作者简介:

    刘晴岩(1961-), 男, 副教授, 从事无损检测技术的应用研究和教学研究。

  • 中图分类号: TG115.28

Inspection of Overlay Welding Crack by TOFD Technique

  • 摘要: 研究了薄壁堆焊层裂纹类缺陷的TOFD检测技术, 讨论了裂纹类缺陷的TOFD检测特征, 分析了不同角度探头和不同探头间距检测结果的影响。结果表明, TOFD技术可以检测到表面下3~10 mm内的垂直裂纹, 结合A扫描信号和B, D扫描图像的特征, 能够有效地对裂纹状缺陷进行识别、定位和定量, 为堆焊质量评价提供可靠准确的依据。
    Abstract: The overlay welding cracks were inspected by TOFD technique. Detecting features of TOFD of cracks were studied, and the influences of angle and distance of probe pairs on detecting results were analyzed. The results showed that TOFD technique could detect vertical cracks correctly located 3~10 mm under the surface. Combined with A-scanning signals, B-scanning and D-scanning images it could identify, locate and quantify crack-like defects effectively, and provide reliable and accurate information for the estimation of the quality of overlay welding.
  • [1] 许遵言.不锈钢及镍基堆焊层厚度测量[J].锅炉技术, 2002, 33(3): 17-20.
    [2] Mihara T, Otsuka Y, Cho H, et a1.Time of flight diffraction measurement using laser ultrasound[J]. Experiment Mechanics, 2006(46): 561-567.
    [3] 李衍.超声TOFD原理和方法要领[J].无损检测, 2007, 29(2): 88-93.
    [4] Honarvar F, Sheikhzadeh H, Moles M, et al. Improving the time-resolution and signal-to-noise ratio of ultrasonic NDE signals[J]. Ultrasonics, 2004(41): 755-763.
计量
  • 文章访问数:  4
  • HTML全文浏览量:  0
  • PDF下载量:  2
  • 被引次数: 0
出版历程
  • 收稿日期:  2008-11-14
  • 刊出日期:  2010-05-09

目录

    /

    返回文章
    返回