[1]祝少华,杨 军,张万鹏,等.X70管线钢焊接接头断裂韧性分析[J].焊管,2013,36(11):59-62.[doi:1001-3938(2013)11-0059-04]
 ZHU Shaohua,YANG Jun,et al.Fracture Toughness of X70 Pipeline Steel Welded Joints[J].,2013,36(11):59-62.[doi:1001-3938(2013)11-0059-04]
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X70管线钢焊接接头断裂韧性分析
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《焊管》[ISSN:1001-3938/CN:61-1160/TE]

卷:
36
期数:
2013年第11期
页码:
59-62
栏目:
经验交流
出版日期:
2013-11-28

文章信息/Info

Title:
Fracture Toughness of X70 Pipeline Steel Welded Joints
文章编号:
1001-3938(2013)11-0059-04
作者:
祝少华12杨 军12张万鹏12张 超12
(1. 国家石油天然气管材工程技术研究中心,陕西 宝鸡 721008;
2. 宝鸡石油钢管有限责任公司 钢管研究院,陕西 宝鸡 721008)
Author(s):
ZHU Shaohua1 2YANG Jun1 2ZHANG Wanpeng1 2ZHANG Chao1 2
(1. National Petroleum and Gas Tubular Goods Engineering Technology Research Center, Baoji 721008, Shaanxi, China;2. Baoji Petroleum Steel Pipe Co., Ltd., Baoji 721008,Shaanxi, China)
关键词:
X70管线钢焊接接头断裂韧性裂纹尖端张开位移(CTOD)
Keywords:
X70 pipeline steelwelded jointfracture toughnesscrack tip opening displacement (CTOD)
分类号:
TE973
DOI:
1001-3938(2013)11-0059-04
文献标志码:
B
摘要:
裂纹尖端张开位移(CTOD)试验常被用来进行材料的韧性评价。详细介绍了CTOD试验的过程、操作步骤及计算拟合方法。并采用裂纹尖端张开位移试验对X70管线钢焊接接头处焊缝、热影响区(HAZ)和母材进行了断裂韧性的测试研究。结果表明,在同一温度下,CTOD特征值δ0.05δ0.2 δ0.2BL均呈现母材最大、热影响区次之、焊缝最小,即母材断裂韧性最优、热影响区次之、焊缝最差。
Abstract:
The crack tip opening displacement (CTOD) test is usually used to evaluate material toughness. In this article, it detailedly introduced CTOD test procedure, operation steps and fitting method of calculation. In addition, it adopted CTOD test to conduct fracture toughness study for the weld in welded joints, HAZ and base metal of X70 Pipeline steel. The result showed that under the same temperature, the CTOD characteristic values δ0.05δ0.2 and δ0.2BL  of base metal is the highest, the HAZ is the second, and the weld is the lowest, that is to say the fracture toughness of base metal is the best, the fracture toughness of HAZ is better than that of weld, and the weld is the worst.

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备注/Memo

备注/Memo:
收稿日期:2013-09-16
作者简介:祝少华(1973—),男,大学本科,主要从事油气输送管材的检测与评价工作。
更新日期/Last Update: