[1]李雅可,马立立,汪 超,等.实验室条件下超高强度X120钢管微观组织和性能研究[J].焊管,2014,37(3):68-72.[doi:1001-3938(2014)03-0068-05]
 Edited and Translated by LI Yake,MA Lili,WANG Chao,et al.Study of Microstructure and Properties of Ultrahigh-strength Pipe Steel of Strength Category X120 Prepared Under Laboratory Conditions[J].,2014,37(3):68-72.[doi:1001-3938(2014)03-0068-05]
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实验室条件下超高强度X120钢管微观组织和性能研究
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《焊管》[ISSN:1001-3938/CN:61-1160/TE]

卷:
37
期数:
2014年第3期
页码:
68-72
栏目:
国外焊管
出版日期:
2014-03-28

文章信息/Info

Title:
Study of Microstructure and Properties of Ultrahigh-strength Pipe Steel of
Strength Category X120 Prepared Under Laboratory Conditions
文章编号:
1001-3938(2014)03-0068-05
作者:
李雅可1马立立1汪 超1杨艳滨1代 金2 编译
(1. 渤海装备巨龙钢管公司南京分公司,南京 210061;
2. 渤海装备华油钢管公司,河北 青县 062658)
Author(s):
Edited and Translated by LI Yake1 MA Lili1 WANG Chao1 YANG Yanbin1 DAI Jin2
(1. Nanjing Branch, Bohai Equipment Julong Steel Pipe Co.,Ltd.,Nanjing 210061,China;
2. Bohai Equipment Huayou Steel Pipe Co.,Ltd.,Qingxian 062658,Hebei,China)
关键词:
焊管X120微观组织中断快速冷却
Keywords:
weled pipe X120microstructureinterrupted accelerated cooling
分类号:
TE973.1
DOI:
1001-3938(2014)03-0068-05
文献标志码:
A
摘要:
在实验室条件下对含B和不含B的两种X120管线钢进行了熔体试验,在实验室的热机械轧制机上以不同的冷却速度轧制试验坯以获得不同的组织形态,同时为增加钢的延展性和韧性还模拟了加速回火技术,对试样均进行了力学性能试验和金相分析。结果表明,不含B元素X120钢所需的力学性能,最佳时效温度为300 ℃且冷却速度为30~35 ℃/s;最佳的组织结构应为粒状贝氏体结构,该试验用钢显示了标准规定X120钢所具有的力学性能。
Abstract:
Experimental melting is carried out at the Bardin TsNIIchermet research complex for smelting steel of strength category X120 of two chemical composition versions: microalloyed with and without boron. Thermomechanical rolling is implemented in a laboratory rolling mill with different interrupted cooling temperatures in order to form ferrite-bainite, bainite, and martensite structures. Accelerated tempering technology is simulated with the aim of increasing ductility and toughness. Mechanical tests and metallographic analysis are performed. The results show that the mechanical performance for steel of strength category X120 microalloyed without boron, the best aging temperature is 300 ℃ and cooling speed is 30 ~ 35 ℃/s; The best microstructure should be granular bainite. The steel obtained exhibits mechanical properties corresponding to strength category X120 according to standard.

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备注/Memo

备注/Memo:
收稿日期:2013-10-22
作者简介:李雅可(1985—),助理工程师,主要从事管线钢管经营销售工作。
更新日期/Last Update: