[1]刘 冬,李荣锋,邱保文,等.显微形貌法用于管线钢止裂韧性参数CTOA测试的研究[J].焊管,2014,37(10):59-62.[doi:1001-3938(2014)10-0059-04]
 LIU Dong,LI Rongfeng,QIU Baowen,et al.Study on Microtopography Analysis Method forCTOA Measurement in Pipeline Steel[J].,2014,37(10):59-62.[doi:1001-3938(2014)10-0059-04]
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显微形貌法用于管线钢止裂韧性参数CTOA测试的研究
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《焊管》[ISSN:1001-3938/CN:61-1160/TE]

卷:
37
期数:
2014年第10期
页码:
59-62
栏目:
经验交流
出版日期:
2014-10-28

文章信息/Info

Title:
Study on Microtopography Analysis Method for
CTOA Measurement in Pipeline Steel
文章编号:
1001-3938(2014)10-0059-04
作者:
刘 冬李荣锋邱保文陈士华吴立新
(武汉钢铁(集团)公司研究院,湖北 武汉 430080)
Author(s):
LIU DongLI RongfengQIU BaowenCHEN ShihuaWU Lixin
(Wuhan Iron and steel(Group) CORP Research Institute,Wuhan 430080,China)
关键词:
裂纹尖端张开角止裂韧性显微形貌法管线钢
Keywords:
crack tip opening angle arrest toughness microtopography method pipeline steel
分类号:
TE973.1
DOI:
1001-3938(2014)10-0059-04
文献标志码:
B
摘要:
详细介绍了一种目前国内外研究较少的CTOA测试方法—显微形貌法的测试原理,并以紧凑拉伸试样为研究对象,将显微形貌法表面分离函数进行了简化。采用简化后计算公式计算得到被测X80管线钢试样正、反两面的稳态扩展临界CTOA值,即(CTOA)C分别为10.90°和10.65°,取二者平均值10.78°作为被测试样的(CTOA)C,相对其他CTOA测试方法的单侧表面测试结果更具说服力。
Abstract:
In this article,it detailedly introduced a kind of CTOA measurement method,which less studied at home and abroad-measurement theory of microscopic morphology method,taking compact tensile samples as the research object,the surface separation function of microscopic morphology method was simplified. The steady-state critical (CTOA)C of two surfaces of X80 pipeline steel sample was obtained through simplified computational formula,respectively 10.90° and 10.65°,took the average of 10.78° as the tested sample(CTOA)C. Relative to other CTOA test methods,the unilateral surface test results are more convincing data.

参考文献/References:

[1] 赵忠庆,王生楠,茅佳兵. 基于(CTOA)c评估结构断裂特性的方法研究[J]. 航空计算技术,2012,42(02):77-80.
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[4] GB/T 24522—2009,金属材料 低拘束试样测定稳定裂纹扩展阻力的试验方法[S].
[5] LLOYD W R,CLINTOCK F A MC. Microtopography for Ductile Fracture Process Characterization Part 2:Application for CTOA Analysis[J]. Engineering Fracture Mechanics,2003(70):403-415.
[6] RUDLAND D L,WILKOWSKI G M,FENG Z,et al. Experimental Investigation of CTOA in Linepipe Steels[J]. Engi-
neering Fracture Mechanics,2003(70):567-577.
[7] 陈福来,帅健,祝宝利. X80管线钢裂纹尖端张开角的试验研究[J]. 压力容器,2010,27(10):8-11.
[8] 帅健,张宏,王永岗,等. 输气管道裂纹动态扩展及止裂技术研究进展[J]. 石油大学学报(自然科学版),2004,28(03):129-135.
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备注/Memo

备注/Memo:
收稿日期:2014-04-11
作者简介:刘冬(1985—),男,汉族,湖北省武汉市人,工程师,主要从事金属材料力学性能测试与研究工作。
更新日期/Last Update: