[1]李 东,尹立孟,王学军,等.管线钢焊缝中晶内针状铁素体的研究进展[J].焊管,2016,39(2):10-13,18.[doi:10.19291/j.cnki.1001-3938.2016.02.003]
 LI Dong,YIN Limeng,WANG Xuejun,et al.Research Progress of Intragranular Acicular Ferrite in Pipeline Steel Weld[J].,2016,39(2):10-13,18.[doi:10.19291/j.cnki.1001-3938.2016.02.003]
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管线钢焊缝中晶内针状铁素体的研究进展
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《焊管》[ISSN:1001-3938/CN:61-1160/TE]

卷:
39
期数:
2016年第2期
页码:
10-13,18
栏目:
试验与研究
出版日期:
2016-02-28

文章信息/Info

Title:
Research Progress of Intragranular Acicular Ferrite in Pipeline Steel Weld
文章编号:
10.19291/j.cnki.1001-3938.2016.02.003
作者:
李 东1尹立孟1王学军2蒋 勇3耿燕飞1姚宗湘1
1. 重庆科技学院冶金与材料工程学院, 重庆  401331;
2. 四川石油天然气建设工程有限责任公司, 成都 610041;
3. 四川大西洋焊接材料股份有限公司, 四川 自贡643000
Author(s):
LI Dong1 YIN Limeng1 WANG Xuejun2 JIANG Yong3 GENG Yanfei1 YAO Zongxiang1
1. School of Metallurgy and Materials Engineering, Chongqing University of Science and Technology, Chongqing 401331, China;
2. Sichuan Petroleum Construction Engineering Co., Ltd, Chengdu 610041, China;
3. Sichuan Atlantic Welding Consumable, Zigong 643000, Sichuan, China
关键词:
管线钢晶内形核针状铁素体(IAF)形核长大机理
Keywords:
pipeline steel intragranular acicular ferrite(IAF) nucleation growth mechansim
分类号:
TG113.12
DOI:
10.19291/j.cnki.1001-3938.2016.02.003
文献标志码:
A
摘要:
为了研究晶内针状铁素体(intragranular acicular ferrite, IAF)对低碳微合金高强度管线钢焊接质量的影响,从IAF的本质、形核机理和长大以及影响其形核的因素等几方面进行了详细分析。研究认为,IAF是一种以非金属夹杂物诱发形核长大的组织,夹杂物种类、夹杂物尺寸、原奥氏体晶粒尺寸和冷却速度是影响其形核的主要因素,低碳微合金高强度管线钢焊缝中的IAF具有显著提高管线钢强度和改善韧性的作用。研究结果以期为高性能管线钢焊接的深入研究及生产实践提供科学指导与参考。
Abstract:
In order to study the influence of intragranular acicular ferrite (IAF) on welding quality of low carbon microalloyed high strength pipeline steel, in this article, it detailedly analyzed from several aspects, such as IAF essence, nucleation mechanism and grow up, and effect factors on nucleation. The research results considered IAF is a kind of structure caused by non-metallic inclusion inducing nucleation, inclusions species, inclusions size, the original austenite grain size and cooling rate are the main factors affecting nucleation. IAF in low carbon microalloyed high strength pipeline steel weld can significantly improve the strength and toughness of pipeline steel. The study will provide scientific guidance and reference for further research and production practice of high performance pipeline steel welding.

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备注/Memo

备注/Memo:
收稿日期: 2015-11-30
基金项目: 重庆市前沿与应用基础研究项目(cstc2014 jcyjA40009、 cstc2015jcyjA50017), 重庆市研究生科研创新项目(CYS15227)。
作者简介: 李   东(1992—), 男, 硕士研究生, 主要从事高性能管线钢焊接与力学可靠性评价工作。
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