轧制工艺对铬钼系螺纹钢组织和性能的影响

doi:10.13228/j.boyuan.issn1006-9356.20230552

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Abstract In order to solve the problem of rolling process parameters setting of chrome-molybdenum steel rebar, the effects of heating temperature, deformation temperature, temperature on cooling bed and cooling rate on the microstructure and mechanical properties of chrome-molybdenum steel rebar were studied by high temperature confocal microscope, Gleeble thermal simulator, metallographic microscope, tensile testing machine, Vickers hardness tester and other equipment, and combined with small-size sample tensile test. The continuous cooling phase change behavior of test steel was analyzed, and the CCT (Continuous Cooling Transformation) curve of test steel was measured. The trial production of 20 mm diameter chrome-molybdenum steel rebar was completed in the industrial production line. The results show that, during the continuous cooling of test steel undercooled austenite, the ferrite and bainite phase transitions mainly occur. With the increase of cooling rate, the ferrite content decreases, while the bainite content increases, and the hardness increases. Rolling process parameters affect the structure type, grain size and proportion of steel rebar, and then affect the strength and plasticity of steel rebar. With heating temperature of 1 150-1 200 ℃, hot rolling temperature of (1 020±10) ℃, cold bed temperature of 850-900 ℃, and cooling rate of 1 ℃/s, the produced steel rebars exhibit a microstructure of ferrite and bainite, of which the proportion of ferrite is 48.56%, the average particle size is 18.34 μm, and the yield strength is greater than 430 MPa, the tensile strength is greater than 630 MPa, the elongation after fracture is more than 20%, and the product of strength and elongation is greater than 12 GPa·%. The results provide data support for the industrialization of chrome-molybdenum corrosion resistant steel bar.

Key words： rolling process chrome-molybdenum steel rebar ferrite bainite product of strength and elongation

Received: 14 September 2023

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	Articles by authors
	CHEN Huande
	ZHOU Yun
	ZHANG Yu
	MA Han

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CHEN Huande,ZHOU Yun,ZHANG Yu等. Effect of rolling process on microstructure and properties of chrome-molybdenum steel rebar[J]. China Metallurgy, 2024, 34(1): 109-115.

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http://www.zgyj.ac.cn/EN/10.13228/j.boyuan.issn1006-9356.20230552 OR http://www.zgyj.ac.cn/EN/Y2024/V34/I1/109

[1]	张建春, 左龙飞, 蒋金洋, 等. 耐海水腐蚀钢筋00Cr10MoV的组织结构及性能研究[J]. 中国腐蚀与防护学报, 2016, 36(4): 363.(ZHANG J C, ZUO L F, JIANG J Y, et al. Microstructure and properties of seawater corrosion resistant rebar steel 00Cr10MoV[J]. Journal of Chinese Society for Corrosion and Protection, 2016, 36(4): 363.)
[2]	朱相荣, 王相润. 金属材料的腐蚀与防护[M]. 北京: 国防工业出版社, 1999.(ZHU X R, WANG X R. Corrosion and Protection of Metal Materials[M]. Beijing: National Defence Industry Press, 1999.)
[3]	麻晗, 王世芳. 节能型钢筋、线材的研发与生产实践[J]. 金属热处理, 2013, 38(7): 1.(MA H, WANG S F. Development and practice of energy saving steel reinforcing bar and wire[J]. Heat Treatment of Materials, 2013, 38(7): 1.)
[4]	沈建德, 吴盛兴. 大气环境锈蚀钢筋混凝土梁力学性能试验研究及分析[J]. 土木工程学报, 2009, 42(8): 75.(SHEN J D, WU S X. Experimental study and analysis on the mechanical performance of corroded reinforcement concrete beams in atmospheric environment[J]. China Civil Engineering Journal, 2009, 42(8): 75.)
[5]	孙伟, 宋丹, 蒋金洋. 严酷环境用耐蚀筋材的应用与研究进展[C]//2013年全国公路养护技术学术年会. 厦门:中国公路学会养护与管理分会,2014:4.(SUN W, SONG D, JIANG J Y. Application and research progress of corrosion-resistant reinforcement materials for harsh environment[C]//Annual National Academic Conference on Road Maintenance Technology,2013. Xiamen: Maintenance and Management Branch of China Highway & Transportation Society, 2014: 4.)
[6]	蔡丹丹. 不锈钢涂层钢筋在预制箱梁中的应用分析[J]. 科技创新与应用, 2021, 11(19): 173.(CAI D D. Application analysis of stainless steel coated reinforcement in precast box girder[J]. Technology Innovation and Application, 2021, 11(19): 173.)
[7]	吕远. 环氧树脂改性处理对涂层钢筋服役性能的影响[D]. 桂林: 桂林理工大学, 2020.(LÜ Y. Effect of Epoxy Resin Modification Treatment on Serv-Ice Performance of Coated Steel Bars[D].Guilin: Guilin University of Technology,2020.)
[8]	郭湛, 完卫国, 孙维, 等. 含稀土高强度耐腐蚀钢筋的研究[J]. 钢铁, 2010, 45(12): 53.(GUO Z, WAN W G, SUN W, et al. Study on high strength and resisting corrosion steel bar containing Re[J]. Iron and Steel, 2010, 45(12): 53.)
[9]	陈昕, 林军, 王纪元, 等. 耐大气腐蚀抗震钢筋HRB500aE的开发[J]. 轧钢, 2019, 36(6): 56.(CHEN X, LIN J, WANG J Y, et al. Development of atmospheric corrosion resistant and seismic reinforcement bars of HRB500aE[J]. Steel Rolling, 2019, 36(6): 56.)
[10]	李霈, 袁静, 黄吉祥, 等. 氯盐环境600 MPa级耐蚀钢筋腐蚀行为研究[J]. 钢铁钒钛, 2023, 44(3): 123.(LI P, YUAN J, HUANG J X, et al. Study on the corrosion behavior of a 600 MPa corrosion-resistant steel bar in a chloride environment[J]. Iron Steel Vanadium Titanium, 2023, 44(3): 123.)
[11]	林鹏飞, 杨忠民, 陈颖, 等. 耐候钢锈层及其稳定化处理现状[J]. 钢铁, 2021, 56(3): 58.(LIN P F, YANG Z M, CHEN Y, et al. Rust layer of weathering steel and its stabilization treatment status[J]. Iron and Steel, 2021, 56(3): 58.)
[12]	周乃鹏, 佘昌莲, 柴锋, 等. 高湿热海洋环境低合金结构钢腐蚀研究进展[J]. 钢铁, 2022, 57(7): 137.(ZHOU N P, SHE C L, CHAI F, et al. Advance in corrosion research of low alloy steel in high humidity and high temperature marine environment[J]. Iron and Steel, 2022, 57(7): 137.)
[13]	陈焕德, 麻晗, 张宇, 等. 海洋工程用00Cr10MoV耐蚀钢筋的组织及拉伸性能[J]. 材料热处理学报, 2019, 40(5): 103.(CHEN H D, MA H, ZHANG Y, et al. Microstructure and tensile properties of 00Cr10MoV corrosion resistant rebar for ocean engineering[J]. Transactions of Materials and Heat Treatment, 2019, 40(5): 103.)
[14]	SONG D, HAO J, YANG F L, et al. Corrosion behavior and mechanism of Cr-Mo alloyed steel: Role of ferrite/bainite duplex microstructure[J]. Journal of Alloys and Compounds, 2019, 809: 151787.
[15]	SONG D, WANG G W, YANG F L, et al. Microstructure and deformation behavior of a novel steel rebar: Effect of the heterogeneous microstructure of soft ferrite and hard bainite[J]. Journal of Materials Research and Technology, 2020, 9(6): 12281.
[16]	王慕亮, 孙玉朋, 陈磊, 等. 含Cr 耐蚀钢筋在模拟高碱性混凝土孔隙液中的钝化行为[J/OL]. 金属学报,https://kns.cnki.net/kcms2/detail/21.1139.tg.20230607.0957.012.html.(WANG M L, SUN Y P, CHEN L, et al. Behavior of corrosion resistant Cr containing steel bars in simulated high alkaline concrete pore solution[J/OL]. Acta Metallurgica Sinica. https://kns.cnki.net/kcms2/detail/21.1139.tg.20230607.0957.012.html.
[17]	刘涛, 陈永峰, 朱利斌, 等. 合金调控对钢筋耐蚀性能的影响[J]. 钢铁研究学报, 2022, 34(2): 156.(LIU T, CHEN Y F, ZHU L B, et al. Effect of alloy adjustment on corrosion resistance of steel rebar[J]. Journal of Iron and Steel Research, 2022, 34(2): 156.)
[18]	王进建, 刘静, 陈润农, 等. 海洋工程用9CrMo耐蚀钢筋组织及腐蚀行为[J]. 钢铁, 2023, 58(5): 112.(WANG J J, LIU J, CHEN R N et al. Microstructure and corrosion behavior of 9CrMo corrosion-resistant steel bars for marine engineering[J]. Iron and Steel, 2023, 58(5): 112.)
[19]	孟静, 常帅, 陈嘉宇, 等. 热轧含Ti微合金钢拉伸性能及冲击韧性的改善[J]. 中国冶金, 2023, 33(2): 106.(MENG J, CHANG S, CHEN J Y, et al. Improvement of tensile property and impact toughness of hot rolled Ti-containing micro-alloyed steel[J]. China Metallurgy, 2023, 33(2): 106.)
[20]	赵美兰, 金嘉瑜, 张明珠, 等.超临界转子用钢的镍铬当量比对δ-铁素体析出的影响[J]. 钢铁研究学报, 2014, 26(5): 61.(ZHAO M L, JIN J Y, ZHANG M Z, et al. Effect of nickel chromium equivalent proportion in ultra-supercritical rotor steel on precipitation of δ-ferrite[J]. Journal of Iron and Steel Research, 2014, 26(5): 61.)
[21]	周云, 杨晓伟, 陈焕德, 等. 加热温度对600 MPa级高强钢筋组织及性能的影响[J]. 钢铁, 2020, 55(1): 101.(ZHOU Y, YANG X W, CHEN H D, et al. Effect of heating temperature on microstructure and properties of 600 MPa grade high strength steel rebars[J]. Iron and Steel, 2020, 55(1): 101.)
[22]	陈焕德, 刘东升. TMCP型Q500qENH特厚耐候桥梁钢板的工业试制[J]. 钢铁, 2014, 49(4): 69.(CHEN H D, LIU D S. Industrial run to produce TMCP processed Q500qENH weathering heavy plate for bridge[J]. Iron and Steel, 2014, 49(4): 69.)
[23]	于兴福, 王士杰, 郑冬月, 等.分级固溶处理对8Cr4Mo4V钢的微观组织和硬度的影响[J]. 材料研究学报, 2022, 36(4): 287.(YU X F, WANG S J, ZHENG D Y, et al. Effect of graded solution treatments on microstructure and hardness of 8Cr4Mo4V steel[J]. Chinese Journal of Material Research, 2022, 36(4): 287.)
[24]	邓为豪, 王杰, 蒲欢, 等. 9310钢的CCT 曲线测定与分析[J]. 材料热处理学报, 2023, 44(7): 166.(DENG W H, WANG J, PU H, et al. Determination and analysis of CCT curve of 9310 steel[J]. Transactions of Materials and Heat Treatment, 2023, 44(7): 166.)
[25]	杨玉, 陈昕, 金纪勇, 等.变形温度对贝氏体钢组织性能的影响[J]. 材料科学与工艺, 2015, 23(4): 93.(YANG Y, CHEN X, JIN J Y, et al. Influence of deformation temperature on microstructures and mechanical property of bainitic steel[J]. Materials Science and Technology, 2015, 23(4):93.)
[26]	利成宁, 袁国, 周晓光, 等.分段冷却模式下热轧双相钢的组织演变及力学性能[J]. 东北大学学报(自然科学版), 2013, 34(6): 810.(LI C N, YUAN G, ZHOU X G, et al. Microstructure evolution and mechanical properties of hot-rolled dual phase steel with stage cooling pattern[J]. Journal of Northeastern University (Natural Science), 2013, 34(6): 810.)