1.海洋装备用金属材料及其应用国家重点实验室,鞍山 114009
2.鞍钢集团钢铁研究院,鞍山 114009
3.中交第一公路勘察设计研究院有限公司,西安 710075
4.中信金属股份有限公司,北京 100004
林田子(1987-),男,硕士,高级工程师;E-mail:aglintianzi@163. com
收稿:2023-01-11,
纸质出版:2023-08-01
移动端阅览
林田子,杨颖,翟晓亮等.Nb含量和热变形参数对纵向变截面耐候桥梁钢变形抗力及组织的影响[J].特殊钢,2023,44(04):108-113.
Lin Tianzi,Yang Ying,Zhai Xiaoliang,et al.Effect of Nb Content and Thermal Deformation Parameters on Deformation Resistance and Microstructure of Weather-resistant Bridge Steel with Longitudinal Variable Section[J].Special Steel,2023,44(04):108-113.
林田子,杨颖,翟晓亮等.Nb含量和热变形参数对纵向变截面耐候桥梁钢变形抗力及组织的影响[J].特殊钢,2023,44(04):108-113. DOI: 10.20057/j.1003-8620.2023-00004.
Lin Tianzi,Yang Ying,Zhai Xiaoliang,et al.Effect of Nb Content and Thermal Deformation Parameters on Deformation Resistance and Microstructure of Weather-resistant Bridge Steel with Longitudinal Variable Section[J].Special Steel,2023,44(04):108-113. DOI: 10.20057/j.1003-8620.2023-00004.
通过Gleeble 3800热模拟试验机,对一种新型不同Nb含量纵向变截面耐候桥梁钢进行变形抗力试验,测定了试验钢在变形速率为1、5、10 s
-1
,变形温度为750~1 000 ℃,变形量为50%等不同变形参数下的变形-应力曲线。并通过金相显微镜、扫描电镜和透射电镜等手段,研究了试验钢在不同热变形参数下的显微组织变化。根据试验结果,分析了变形参数和Nb含量对纵向变截面耐候桥梁钢的变形抗力和显微组织的影响。结果表明:当Nb含量≥0.03%时,钢板的变形抗力显著增大,组织明显细化,添加一定量的Nb元素可提高钢板再结晶温度50 ℃以上,使LP耐候桥梁钢能够在变形温度为850~950 ℃的高温区轧制,以更好的保证LP钢板的板型和综合性能,为LP钢板产品的试制提供了理论依据。
The deformation resistance test of a new type of longitudinal variable section weather-resistant bridge steel with different Nb content was carried out by Gleeble 3800 thermal simulation tester. The deformation stress curves of the steel were measured at different deformation parameters, such as deformation rate of 1, 5, 10 s
-1
, deformation temperature of 750-1 000 ℃ and deformation amount of 50%. The microstructure changes of the test steel under different thermal deformation parameters were studied by means of metallographic microscope, scanning electron microscope and transmission electron microscope. According to the test results, the influence principle and main reason of deformation parameters and Nb content on the deformation resistance and microstructure of longitudinal variable section were analyzed. The results show that when the content of Nb ≥0.03%, the deformation resistance of steel plate increases significantly, and the microstructure is obviously refined. The addition of certain Nb element can increase the recrystallization temperature of steel plate above 50 ℃, so that LP weather-resistant bridge steel can be rolled in the high temperature range of deformation temperature between 850 ℃ and 950 ℃, so as to better guarantee the profile and comprehensive properties of LP steel plate. It provides a theoretical basis for the trial production of LP steel plate.
Osamu T , Takeshi K , Keniti A . Development of High PerfomrAnce Steel Plates in Terms of Reliability and Economy of Steel structure [J]. Kawasaki steel Giho , 2000 , 32 ( 3 ): 198 - 204 .
杜平 , 胡贤磊 , 王君 , 等 . 纵向变截面钢板的发展和应用 [J]. 轧钢 , 2008 , 25 ( 1 ): 47 - 50 .
刘相华 , 刘鑫 , 付书涛 , 等 . 变截面板带材产品及其深加工 [J]. 轧钢 , 2015 , 3 ( 5 ): 1 - 7 .
刘相华 , 高琼 , 苏晨 , 等 . 变截面轧制理论与应用的新进展 [J]. 轧钢 , 2012 , 29 ( 3 ): 1 - 7 .
Shinichi S , Ryuji M , Tadashi O , et al . Steel products for ship-building [J]. JFE Technical Report , 2004 ,( 2 ): 41 - 48 .
廖建国 . 厚钢板开发的现状及今后的发展趋势 [J]. 宽厚板 , 2004 , 10 ( 4 ): 41 - 47 .
Liu X H , Wu Z Q , Fang Z , et a1 . From TRB and LP plate to variable gauge rolling:technology,theory,simulation and experiment [J]. Materials Science Forμm , 2012 (706/707 / 708 / 709 ): 1448 - 1453 .
日本铁钢联盟 , 日本桥梁建设协会 . 耐候性钢桥梁的适用 [R]. 东京 : 日本铁钢联盟 , 2010 .
Chen Aihua , Xu jianqiu , Li Ran , et al . Corrosion resistance of high performance weathering steel for bridge building applications [J]. Journal of Iron and Steel Research , International, 2012 , 19 ( 6 ): 59 .
李立彦 , 周成 , 尹雨群 , 等 . 模拟滨海环境免涂装耐候钢锈层研究及其耐腐蚀机制 [J]. 腐蚀科学与防护技术 , 2014 , 26 ( 6 ): 545 .
张光倩 , 谢康笛 , 郭慧琦 , 等 . 奥氏体化温度对M54二次硬化钢组织及力学性能的影响 [J]. 材料热处理学报 , 2022 , 43 ( 10 ): 118 - 127 .
叶晓瑜 ,, 黄贞益 ,李拔,等. 再结晶区轧制工艺参数对X80管线钢组织及织构的影响 [J].特殊钢, 2021 , 42 ( 4 ): 12 - 16 .
骆小刚 , 马艳丽 . 高强耐候钢变形抗力及模型的研究 [J]. 塑性工程学报 , 2005 , 12 ( 7 ): 22 - 24 .
王庆敏 , 刘鑫 . Q345GJC高层建筑钢热变形行为及流变应力数学模型研究 [J]. 特殊钢 , 2020 , 41 ( 1 ): 12 - 15 .
戴启勋 , 程晓农 . 金属组织控制原理 [M]. 北京 : 化学工业出版社 , 2009 .
吕晓芳 , 孙伟 , 杜慧起 , 等 . 控轧控冷对低合金钢Q355D厚板组织和力学性能的影响 [J]. 特殊钢 , 2021 , 42 ( 2 ): 68 - 71 .
0
浏览量
0
下载量
0
CSCD
0
CNKI被引量
关联资源
相关文章
相关作者
相关机构
京公网安备11010802024621