[1]刘 冬,李荣锋,邱保文,等.高韧性管线钢止裂韧性参数CTOA测试方法研究进展[J].焊管,2013,36(10):51-55.[doi:1001-3938(2013)10-0051-05]
 LIU Dong,LI Rongfeng,QIU Baowen,et al.Research Progress of CTOA Test Method in Toughness Arrest of High Toughness Pipeline Steel[J].,2013,36(10):51-55.[doi:1001-3938(2013)10-0051-05]
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高韧性管线钢止裂韧性参数CTOA测试方法研究进展
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《焊管》[ISSN:1001-3938/CN:61-1160/TE]

卷:
36
期数:
2013年第10期
页码:
51-55
栏目:
工艺与设备
出版日期:
2013-10-28

文章信息/Info

Title:
Research Progress of CTOA Test Method in Toughness Arrest of High Toughness Pipeline Steel
文章编号:
1001-3938(2013)10-0051-05
作者:
刘 冬李荣锋邱保文杜丽影
(武汉钢铁(集团)公司研究院,武汉 430080)
Author(s):
LIU DongLI RongfengQIU BaowenDU Liying
(Wuhan Iron and steel(Group) CORP Research Institute,Wuhan 430080,China)
关键词:
管线钢止裂韧性裂纹尖端张开角高韧性
Keywords:
pipeline steeltoughness arrestcrack tip opening anglehigh toughness
分类号:
TE973.1
DOI:
1001-3938(2013)10-0051-05
文献标志码:
A
摘要:
裂纹尖端张开角(CTOA)已被应用于高韧性管线钢的止裂韧性评定。简要介绍了裂纹尖端张开角CTOA的定义,详细介绍了目前使用较广的4种CTOA测试方法,即稳态撕裂时直接测量法(光学显微和数值图像相关方法)、试验后测量(显微形貌法)、有限元法和通过δ5间接测量法,并对这几种方法的适用性及存在的问题进行了探讨,为CTOA测试方法的推广应用及今后进一步的丰富与完善打下了基础。
Abstract:
The crack tip opening angle(CTOA) has already been used for toughness arrest assessment in high toughness pipeline steel. In this paper,it briefly introduced the definition of CTOA,detailedly introduced four CTOA test methods commonly used at present,including the direct measurement method when steady-state tear(optical microscopic and numerical image correlation method),measurement after test(microscopic morphology method),finite element method and indirect method of measurement through δ5. It also discussed the applicability and the existed problems,which lay the foundation for popularization and application and improvement of the CTOA measurement method.

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备注/Memo

备注/Memo:
收稿日期:2013-06-30
作者简介:刘冬(1985—),男,湖北武汉人,工程师,主要从事金属材料力学性能测试与研究工作。
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