[1]张向英,金彦枫,何谞,等.球罐缺陷的衍射时差法超声检测分析及判别[J].石油化工设备,2024,53(06):61-65.[doi:10.3969/j.issn.1000-7466.2024.06.011]
 ZHANG Xiang-ying,JIN Yan-feng,HE Xu,et al.Analysis and Identification of a Spherical Tank Defect by Ultrasonic Time of Flight Diffraction Technique[J].Petro-Chemical Equipment,2024,53(06):61-65.[doi:10.3969/j.issn.1000-7466.2024.06.011]
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球罐缺陷的衍射时差法超声检测分析及判别()
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石油化工设备[ISSN:1000-7466/CN:62-1078/TQ]

卷:
53
期数:
2024年06期
页码:
61-65
栏目:
技术应用
出版日期:
2024-11-15

文章信息/Info

Title:
Analysis and Identification of a Spherical Tank Defect by Ultrasonic Time of Flight Diffraction Technique
文章编号:
1000-7466(2024)06-0061-05
作者:
张向英金彦枫何谞杨艳龙刘泉白家欣侯彦华胡金奎
甘肃蓝科石化高新装备股份有限公司,甘肃 兰州 730070
Author(s):
ZHANG Xiang-yingJIN Yan-fengHE XuYANG Yan-longLIU QuanBAI Jia-xinHOU Yan-huaHU Jin-kui
Lanpec Technologies Limited,Lanzhou 730070,China
关键词:
球罐衍射时差法超声检测夹杂物缺陷判别
Keywords:
spherical tankultrasonic time of flight diffraction techniqueinclusiondefectidentification
分类号:
TQ053.2;TE972
DOI:
10.3969/j.issn.1000-7466.2024.06.011
文献标志码:
B
摘要:
对某中厚板球罐焊接接头进行衍射时差法超声检测(TOFD)中发现大量密集显示点状缺陷,排除焊接原因后,通过取样进行低倍检测、金相组织检验分析,确认TOFD图谱显示与母材中存在的条状MnS夹杂物,聚集态的含Nb、Ti的氮化物夹杂物有关,二者大量存在对接头焊接质量产生直接影响。通过调整扫查方式对缺陷位置进行确认,为TOFD检出缺陷的识别与判定提供借鉴。
Abstract:
A large number of punctate defects were found in a welded joint of a medium and heavy plate spherical tank by ultrasonic time of flight diffraction technique(TOFD). After the welding cause was excluded,an analysis of low-magnification detection and metallographic inspection was conducted using sampling techniques. This revealed that the defects found by TOFD were related to the presence of MnS inclusions in the base metal and nitride inclusions containing Nb and Ti in the aggregate state. The high number of inclusions had a direct impact on the quality of the welding. Verification of the location of defects through adjustment of the scanning method provides a basis for the identification and assessment of defects detected by TOFD.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期: 2024-06-02
作者简介: 张向英(1981-),女,甘肃民勤人,高级工程师,学士,主要从事压力容器的无损检测工作。
更新日期/Last Update: 2024-11-15