[1]李远征,毕宗岳,刘清友,等.临界区热处理工艺对低合金可膨胀管材组织性能的影响[J].焊管,2014,37(9):14-18.[doi:1001-3938(2014)09-0014-05]
 LI Yuanzheng,BI Zongyue,LIU Qingyou,et al.Influence of Critical Zone Heat Treatment on Microstructureand Properties of Expendable Low-alloy Tube[J].,2014,37(9):14-18.[doi:1001-3938(2014)09-0014-05]
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临界区热处理工艺对低合金可膨胀管材组织性能的影响
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《焊管》[ISSN:1001-3938/CN:61-1160/TE]

卷:
37
期数:
2014年第9期
页码:
14-18
栏目:
试验与研究
出版日期:
2014-09-28

文章信息/Info

Title:
Influence of Critical Zone Heat Treatment on Microstructure
and Properties of Expendable Low-alloy Tube
文章编号:
1001-3938(2014)09-0014-05
作者:
李远征12毕宗岳12刘清友3韦 奉12张 峰12何石磊12
(1. 国家石油天然气管材工程技术研究中心,陕西 宝鸡 721008;
2. 宝鸡石油钢管有限责任公司,陕西 宝鸡 721008;
3. 钢铁研究总院,北京 100081)
Author(s):
LI Yuanzheng12BI Zongyue12LIU Qingyou3WEI Feng12ZHANG Feng12HE Shilei12
(1. Chinese National Engineering Research Center for Petroleum and Natural Gas Tubular Goods,Baoji 721008,Shaanxi,China;
2. Baoji Petroleum Steel Pipe Co.,Ltd.,Baoji 721008,Shaanxi,China;
3. Central Institute of Iron and Steel Research,Beijing 100081,China)
关键词:
膨胀管临界区热处理M/A组织性能
Keywords:
expandable tubecritical zone heat treatmentM/A phasesstructure properties
分类号:
TG162.8
DOI:
1001-3938(2014)09-0014-05
文献标志码:
A
摘要:
采用光学显微镜、扫描电镜、透射电镜和X射线衍射等方法研究了临界区热处理工艺对一种低合金可膨胀管材组织性能的影响。结果表明,不同工艺条件下,试验钢的组织主要为铁素体+贝氏体+M/A组织。当加热温度从750 ℃升高至840 ℃时,组织粗化,M/A组织体积分数增加及A比例的降低,导致试样强度出现峰值,屈强比和冲击韧性不断降低,均匀延伸率和n不断升高。研究发现,临界区加热温度为780~810 ℃时试验钢具有良好的综合性能。
Abstract:
In this article, the Influence of different critical zone heat treatment on microstructure and properties of expandable low-alloy tube were investigated by means of optical microstructure, scanning electronic microscope(SEM), transmission electron microscope(TEM), X-ray diffraction and mechanical tests. The results showed that the microstructure of test steel is composed of ferrite, bainite and martensite /austenite(M/A) phases. When the heating temperature increases from 750 ℃ to 840 ℃, the microstructure coarsen, the fraction of M/A phases increase and A proportion reduces, which results in the peak strength appear, the yield ratio and impact toughness decrease gradually, and the uniform elongation and n value constantly increase. It found that the test steel is with good comprehensive properties, when the heating temperature is 780~810 ℃ at critical zone.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2014-04-14
基金项目:中国石油天然气集团科技管理部课题“高性能连续管、膨胀管新产品技术研究”(2011A-4209)。
作者简介:李远征(1986—),男,硕士,工程师,主要从事油井管工艺技术研究和新产品开发工作。
更新日期/Last Update: