[1]李国鹏,韩秀林,赵 波,等.X80和X90管线钢热影响区组织与韧性对比[J].焊管,2014,37(7):13-17.[doi:1001-3938(2014)07-0013-05]
 LI Guopeng,HAN Xiulin,ZHAO Bo,et al.Comparison of Microstructure and Toughness of X80 and X90 Pipeline Heat-affected Zone (HAZ)[J].,2014,37(7):13-17.[doi:1001-3938(2014)07-0013-05]
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X80和X90管线钢热影响区组织与韧性对比
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《焊管》[ISSN:1001-3938/CN:61-1160/TE]

卷:
37
期数:
2014年第7期
页码:
13-17
栏目:
试验与研究
出版日期:
2014-07-28

文章信息/Info

Title:
Comparison of Microstructure and Toughness of X80 and X90 Pipeline
Heat-affected Zone (HAZ)
文章编号:
1001-3938(2014)07-0013-05
作者:
李国鹏1韩秀林1赵 波1陈小伟2高 磊2杜国强2
(1. 渤海装备研究院输送装备分院,河北 青县 062658;
2. 中国石油渤海装备巨龙钢管公司,河北 青县 062658)
Author(s):
LI Guopeng1HAN Xiulin1ZHAO Bo1CHEN Xiaowei2GAO Lei2DU Guoqiang2
(1. CNPC Bohai Equipment Research Institute Transmission Equipment Branch, Qingxian 062658, Hebei, China;
2. CNPC Bohai Equipment Julong Steel Pipe Co., Ltd., Qingxian 062658, Hebei, China)
关键词:
焊接X80X90热影响区组织韧性
Keywords:
weldingX80 X90 pipeline steel heat-affected zone (HAZ) microstructure toughness
分类号:
TG407
DOI:
1001-3938(2014)07-0013-05
文献标志码:
A
摘要:
采用热模拟方法对X80和X90管线钢进行了热影响区不同区域组织与性能的研究,研究发现:两种钢级管线钢热影响区不同区域的组织与性能既存在相同点,又有不同之处。相同点为热影响区的4个区域(粗晶区、细晶区、临界区和亚临界区)中,亚临界区和细晶区的冲击韧性较好,而粗晶区和临界区的冲击韧性较差;不同点为X90钢级管线钢热影响区细晶区韧性比X80差。经过分析认为,这主要是由于X90钢级细晶区中,低温韧性较差的块状铁素体要多于X80钢的缘故。
Abstract:
In this article, the microstructure and properties of different zones of X80 and X90 pipeline steel HAZ were studied by using thermal simulation, the result indicated that the microstructure and properties of two kinds of pipeline steel in different regions are with similarities, also with some differences. In the four regions(coarse grained region, fine grained region, critical zone, subcritical zone) of the heat affected zone, the similarities are that toughness are both better in two regions (subcritical zone, fine-grained region), but the toughness in coarse grained region and critical zone both are poor; The differences are reflected in the toughness in fine-grained region of X90 steel grade is worse than that of X80 grade. After analysis, it is mainly due to in fine grained region of X90 steel, the massive ferrite with worse low temperature toughness is more than that of X80 steel.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2014-03-07
作者简介:李国鹏(1985—),男,助理工程师,现主要从事钢管焊接、热处理工艺研究工作。
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