[1]董俊明,毛秋英,毕宗岳,等.X100和X80管线钢组织与冲击性能分析[J].焊管,2014,37(12):16-21.[doi:1001-3938(2014)12-0016-06]
 DONG Junming,MAO Qiuying,BI Zongyue,et al.Analysis on Microstructure and Impact Toughness of X100 and X80 Pipeline Steel[J].,2014,37(12):16-21.[doi:1001-3938(2014)12-0016-06]
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X100和X80管线钢组织与冲击性能分析
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《焊管》[ISSN:1001-3938/CN:61-1160/TE]

卷:
37
期数:
2014年第12期
页码:
16-21
栏目:
试验与研究
出版日期:
2014-12-28

文章信息/Info

Title:
Analysis on Microstructure and Impact Toughness of
X100 and X80 Pipeline Steel
文章编号:
1001-3938(2014)12-0016-06
作者:
董俊明1毛秋英1毕宗岳2黄晓辉2
(1. 西安交通大学 材料科学与工程学院, 西安 710049;
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):
DONG Junming1MAO Qiuying1BI Zongyue2HUANG Xiaohui2
(1.School of Materials Science and Engineering, Xi’an Jiaotong University, Xi’an 710049, China;
2. Steel Pipe Research Institute, Baoji Petroleum Steel Pipe Co., Ltd., Baoji 721008, Shaanxi, China)
关键词:
管线钢显微组织冲击韧性有效晶粒尺寸分层裂纹
Keywords:
pipeline steel microstructure impact toughness effective grain size lamination cracks
分类号:
TG142.11
DOI:
1001-3938(2014)12-0016-06
文献标志码:
b
摘要:
通过对X100和X80管线钢横截面试样进行OM,SEM,TEM和EBSD观察,研究了X100和X80管线钢的显微组织和冲击韧性,并采用EBSD技术获得材料的有效晶粒尺寸和晶界取向角,得出有效晶粒尺寸和大角度晶界比例是影响管线钢冲击韧性的重要因素。对冲击断口中出现的分层裂纹进行了研究,得出BF带、M/A带和原奥氏体晶界破裂促使管线钢产生分层裂纹。
Abstract:
In this paper, through observing cross-section specimen of X100 and X80 pipeline steel by OM, SEM, TEM methods, the microstructure and impact toughness of X100 and X80 pipeline steel were studied, adopting EBSD technology to obtain the effective grain size of material and grain boundary orientation angle, it is concluded that the effective grain size and large angle grain boundary ratio are the important factors influencing the impact toughness of pipeline steel. It also studied the lamination cracks appeared in impact fracture, it is concluded that the BF zone, M/A zone and the rupture of original austenite grain boundary promote lamination cracks to appear in pipeline steel.

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备注/Memo

备注/Memo:
收稿日期:2014-06-19
作者简介: 董俊明( 1958—), 男, 1997 年毕业于西安交通大学焊接专业, 工学博士, 副教授, 长期从事焊接冶金及焊接结构应力腐蚀的教学及研究工作。
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