1.青岛特殊钢铁有限公司线材研究所,青岛 266000
2.北京科技大学碳中和研究院,北京 100083
李阳(1988—),男,博士,高级工程师;E-mail:liyang@citicsteel.com
张朝磊(1984—),男,博士,副教授;E-mail:zhangchaolei@ustb.edu.cn
收稿:2024-11-01,
纸质出版:2025-05-30
移动端阅览
李阳,刘晋源,徐凯等.桥梁缆索用超高强92Si盘条热轧过程 组织性能演变规律[J].特殊钢,2025,46(03):107-111.
Li Yang,Liu Jinyuan,Xu Kai,et al.Evolution Law of Microstructure and Properties during Hot-rolling Process of Ultra-high-strength 92Si Wire Rod for Bridge Cables[J].Special Steel,2025,46(03):107-111.
李阳,刘晋源,徐凯等.桥梁缆索用超高强92Si盘条热轧过程 组织性能演变规律[J].特殊钢,2025,46(03):107-111. DOI: 10.20057/j.1003-8620.2024-00262.
Li Yang,Liu Jinyuan,Xu Kai,et al.Evolution Law of Microstructure and Properties during Hot-rolling Process of Ultra-high-strength 92Si Wire Rod for Bridge Cables[J].Special Steel,2025,46(03):107-111. DOI: 10.20057/j.1003-8620.2024-00262.
针对桥梁缆索用超高强92Si盘条全流程热轧过程中组织性能演变规律,采用力学性能检测、微观组织表征等方法分析了热轧过程中连铸坯、中轧前样品、精轧前样品及成品盘条。结果表明:随着轧制进行强塑性逐渐提升,组织细化使得成品盘条相比于铸坯抗拉强度提升了45%。由铸坯到成品盘条,片层间距细化了76%,球团尺寸细化了78%。热轧制全过程中,珠光体片层间距和球团尺寸对屈服强度贡献占比分别为80%和20%。析出相主要为Ti、V的碳化物,而由于轧制过程温度较高,铸坯中部分析出相发生回熔再析出,从而使得盘条中析出相数量及尺寸较小。
According to the evolution law of microstructure and properties during the entire hot rolling process of ultra-high strength 92Si wire rod, methods such as mechanical property testing and microstructure characterization were used to analyze the continuous casting billet, samples before intermediate rolling, samples before finishing rolling, and finished wire rod during the hot rolling process. The results showed that with the gradual improvement of strength and plasticity during rolling, the microstructure refinement resulted in a 45% increase in the tensile strength of the finished wire rod compared to the casting billet. From casting billet to finished wire rod, the interlayer spacing has been refined by 76%, and the pellet size has been refined by 78%. During the entire rolling process, the contribution of pearlite interlayer spacing and pellet size to yield strength were 80% and 20%, respectively. The precipitated phases were mainly carbides of Ti and V, and due to the high temperature during the hot rolling process, the some precipitated phases in the middle of the cast billet underwent dissolution and re-precipitation, resulting in a smaller number and size of precipitated phases in the wire rod.
王林烽 , 周立初 , 陈华青 , 等 . <math id="M19"><mi>ϕ</mi></math> https://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=79656083&type= 2.53999996 https://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=79656084&type= 1.86266661 5.35 mm-2100 MPa桥梁缆索用镀锌铝钢丝的工艺与组织性能 [J]. 钢铁 , 2019 , 54 ( 2 ): 90 - 96 .
冯路路 , 吴开明 , 鲁修宇 , 等 . 桥梁缆索用超高强度钢丝的研究现状及发展趋势 [J]. 中国材料进展 , 2020 , 39 ( 5 ): 395 - 403 .
刘 祥 , 孙浩博 , 张俊峰 , 等 . 高强度桥梁缆索用钢研究现状和发展趋势 [J]. 鞍钢技术 , 2023 ( 1 ): 9 - 13+62 .
贾 力 , 胡丞杨 , 朱晓雄 , 等 . 冷拉拔对Nb微合金化桥梁缆索用钢丝显微组织和力学性能的影响 [J]. 钢铁研究学报 , 2024 , 36 ( 7 ): 947 - 956 .
Pan X K , Li J C , Zhang C L , et al . Effect of trace niobium on the microstructure and properties of full-pearlite steel used in the high-strength hypereutectoid wire rods [J]. Journal of Materials Research and Technology , 2024 , 33 : 954 - 964 .
郭洛方 , 徐 凯 , 高永彬 , 等 . 盐浴等温热处理对超高强硬线钢100Si组织和性能的影响 [J]. 特殊钢 , 2023 , 44 ( 3 ): 84 - 89 .
李 阳 , 甄先锋 , 王广顺 , 等 . 在线盐浴热处理生产高性能Fe-C-Mn-Si高碳钢线材 [J]. 中国冶金 , 2023 , 33 ( 4 ): 104 - 110 .
屈小波 , 王 淼 , 曹 磊 , 等 . 桥梁缆索用87MnSi钢线材微观组织演变对力学性能的影响 [J]. 特殊钢 , 2024 , 45 ( 3 ): 114 - 118 .
姚 赞 , 陈常勇 , 黄宗泽 , 等 . 镀锌时间对桥梁缆索用钢丝组织及扭转性能的影响 [J]. 材料热处理学报 , 2019 , 40 ( 5 ): 139 - 148 .
罗 锋 . 92Si桥梁缆索用钢中非金属夹杂物全流程演变研究 [D]. 沈阳 : 东北大学 , 2020 .
胡 璠 , 徐 巍 , 王林烽 , 等 . 桥梁缆索钢丝热浸镀Zn-Al-Mg镀层的组织与耐蚀性能研究 [J]. 表面技术 , 2021 , 50 ( 11 ): 279 - 286 .
Nobari A H , Serajzadeh S . Modeling of heat transfer during controlled cooling in hot rod rolling of carbon steels [J]. Applied Thermal Engineering , 2011 , 31 ( 4 ): 487 - 492 .
Taleff E M , Syn C K , Lesuer D R , et al . Pearlite in ultrahigh carbon steels: Heat treatments and mechanical properties [J]. Metallurgical and Materials Transactions A , 1996 , 27 ( 1 ): 111 - 118 .
Walentek A , Seefeldt M , Verlinden B , et al . Electron backscatter diffraction on pearlite structures in steel [J]. Journal of Microscopy , 2006 , 224 ( Pt 3 ): 256 - 263 .
Khiratkar V N , Mishra K , Srinivasulu P , et al . Effect of inter-lamellar spacing and test temperature on the Charpy impact energy of extremely fine pearlite [J]. Materials Science and Engineering: A , 2019 , 754 : 622 - 627 .
0
浏览量
5
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