奥氏体化前预变形对低碳微合金纳米钢组织和性能的影响

doi:10.13251/j.issn.0254-6051.2024.07.046

金属热处理 ›› 2024, Vol. 49 ›› Issue (7): 301-306.DOI: 10.13251/j.issn.0254-6051.2024.07.046

奥氏体化前预变形对低碳微合金纳米钢组织和性能的影响

刘红亮¹, 唐恩², 林鹏^3,4, 张瑞², 袁清⁵

1.大自然钢业集团有限公司, 浙江温州 325000;
2.浙江工贸职业技术学院, 浙江温州 325000;
3.河北机电职业技术学院材料与建筑工程系, 河北邢台 054000;
4.邢台市模具材料技术创新中心, 河北邢台 054000;
5.武汉科技大学省部共建耐火材料与冶金国家重点实验室, 湖北武汉 430081

收稿日期:2023-12-15 修回日期:2024-03-28 出版日期:2024-07-25 发布日期:2024-08-29
通讯作者: 唐恩,教授,博士,E-mail:tangen@zjitc.edu.cn
作者简介:刘红亮(1980—),男,高级工程师,总工程师,主要研究方向为金属材料加工,E-mail:28176766@qq.com。
基金资助:
温州市基础工艺项目(G2023068);杭钢集团项目(2023ZR01);浙江工贸引进人才项目(YJRC202305)

Effect of pre-deformation before austenization on microstructure and properties of low carbon microalloyed nano steel

Liu Hongliang¹, Tang En², Lin Peng^3,4 , Zhang Rui², Yuan Qing⁵

1. Natural Steel Group Co., Ltd., Wenzhou Zhejiang 325000, China;
2. Zhejiang Industry & Trade Vocational College, Wenzhou Zhejiang 325000, China;
3. Department of Materials and Building Engineering, Hebei Institute of Mechanical and Electrical Technology, Xingtai Hebei 054000, China;
4. Xingtai Mold Material Technology Innovation Center, Xingtai Hebei 054000, China;
5. State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan Hubei 430081 China

Received:2023-12-15 Revised:2024-03-28 Online:2024-07-25 Published:2024-08-29

摘要/Abstract

摘要： 在常规冷轧+退火制备低碳纳米钢工艺的基础上增加奥氏体化前预变形处理,从组织、析出和性能分析了奥氏体化前预变形对低碳微合金纳米钢的影响。结果表明,在常规冷轧+退火工艺基础上采用奥氏体化前预变形制备的纳米钢抗拉强度为1043.1 MPa,延伸率为6.1%。其强度相比原始粗晶态钢提升524.5 MPa,延伸率急剧下降。奥氏体化前预变形+冷轧+退火工艺可以得到纳米级别的铁素体晶粒,且不会影响NbC析出颗粒的作用,因此可以保证纳米钢的强度,而延伸率下降的主要原因是奥氏体前预变形为晶界处的渗碳体颗粒提供缺陷能,促进晶界处渗碳体发生粗化,恶化晶界强度。此外,晶界处粗化的渗碳体缺少钉扎几何必需位错的能力。

关键词: 预变形, 纳米结构, 显微组织, 拉伸性能, 析出

Abstract: Pre-deformation before austenitizing was added into the conventional cold-rolling and annealing process to prepare low carbon nano steel. The effect of pre-deformation on microstructure, precipitation and properties of the low carbon microalloyed nano steel was analyzed. The results show that based on the conventional process the tensile strength and elongation of the nano steel prepared through pre-deformation before austenizing is 1043.1 MPa and 6.1%, respectively. Compared with the original coarse-structured steel, the strength increases by 524.5 MPa and the elongation decreases sharply. By the process of pre-deformation before austenizing+cold-rolling+annealing nano-sized ferrite grains can be obtained without affecting the precipitation of NbC particles, so the strength of the nano steel is guaranteed. However, the main reason for the decrease of elongation is that the pre-deformation provides defect energy for cementite particles at grain boundaries, which promotes the coarsening of cementite and deteriorates the strength of grain boundaries. In addition, coarsened cementite at grain boundaries lack the ability to pin geometrically necessary dislocations.

Key words: pre-deformation, nanostructure, microstructure, tensile properties, precipitation

中图分类号:

TG142.1

刘红亮, 唐恩, 林鹏, 张瑞, 袁清. 奥氏体化前预变形对低碳微合金纳米钢组织和性能的影响[J]. 金属热处理, 2024, 49(7): 301-306.

Liu Hongliang, Tang En, Lin Peng , Zhang Rui, Yuan Qing. Effect of pre-deformation before austenization on microstructure and properties of low carbon microalloyed nano steel[J]. Heat Treatment of Metals, 2024, 49(7): 301-306.

参考文献

[1]Storojeva L, Ponge D, Kaspar R, et al. Development of microstructure and texture of medium carbon steel during heavy warm deformation[J]. Acta Materialia, 2004, 52(8): 2209-2220.
[2]纪小虎, 孟淼, 严思梁, 等. 变形温度对大塑性变形TA15合金显微组织和力学性能的影响[J]. 中国有色金属学报, 2022, 32(3): 752-762.
Ji Xiaohu, Meng Miao, Yan Siliang. et al. Effect of deformation temperature on microstructures and mechanical properties of TA15 alloy with severe plastic deformation[J]. The Chinese Journal of Nonferrous Metals, 2022, 32(3): 752-762.
[3]王金亮, 秦凤明, 陈慧琴. 基于大变形和变形均匀性的S型等通道双转角挤压工艺[J]. 塑性工程学报, 2022, 29(7): 11-18.
Wang Jinliang, Qin Fengming, Chen Huiqin. S-shaped equal-channel double-angle extrusion process based on large deformation and deformation uniformity[J]. Journal of Plasticity Engineering, 2022, 29(7): 11-18.
[4]郑勇, 魏连峰, 田大容, 等. 锆合金剧烈塑性变形组织演变的研究进展[J]. 热加工工艺, 2021, 50(7): 12-17.
Zheng Yong, Wei Lianfeng, Tian Darong, et al. Research progress on microstructure evolution of severe plastic deformation of zirconium alloys[J]. Hot Working Technology, 2021, 50(7): 12-17.
[5]李新城, 唐永春, 朱伟兴, 等. 超细晶钢热轧板表面开裂型缺陷成因探析及其表征与控制[J]. 材料热处理学报, 2016, 37(9): 100-104.
Li Xincheng, Tang Yongchun, Zhu Weixing, et al. Surface crack defect analysis of hot-rolled ultra-fine grain slab and its characterization and control[J]. Transactions of Materials and Heat Treatment, 2016, 37(9): 100-104.
[6]李新城, 陈轶, 朱伟兴, 等. 针状铁素体对超细晶铁素体钢力学性能的影响[J]. 材料热处理学报, 2015, 36(5): 135-138.
Li Xincheng, Chen Yi, Zhu Weixing, et al. Effect of acicular ferrite on mechanical properties of ultra-fine grain ferrite steel[J]. Transactions of Materials and Heat Treatment, 2015, 36(5): 135-138.
[7]刘双, 宋小兰, 王毅, 等. 机械合金化法制备超细Al-Ti粉及其反应活性研究[J]. 内燃机与配件, 2018(11): 35-38.
Liu Shuang, Song Xiaolan, Wang Yi, et al. Preparation of ultrafine Al-Ti powders by mechanical alloying and its reactivity[J]. Internal Combustion Engine and Parts, 2018(11): 35-38.
[8]Tsuji N, Ueji R, Minamino Y, et al. A new and simple process to obtain nano-structured bulk low-carbon steel with superior mechanical property[J]. Scripta Materialia, 2001, 46(4): 305-310.
[9]Wang Y M, Chen M W, Zhou F H, et al. High tensile ductility in a nanostructured metal[J]. Nature, 2002, 419(6910): 912-914.
[10]Fang T H, Li W L, Tao N R, et al. Revealing extraordinary intrinsic tensile plasticity in gradient nano-grained copper[J]. Science, 2011, 331: 1587-1590.
[11]Panigrahi S K, Jayanganthan R. A study on the combined treatment of cryorolling, short-annealing, and aging for the development of ultrafine-grained Al 6063 alloy with enhanced strength and ductility[J]. Metallurgical and Materials Transactions A, 2010, 41(10): 2675-2690.
[12]姚耔杉, 徐光, 胡海江. 奥氏体预变形对等温贝氏体相变和组织影响[J]. 钢铁研究学报, 2018, 30(4): 322-327.
Yao Zishan, Xu Guang, Hu Haijiang. Effect of ausforming on isothermal bainitic transformation and microstructure[J]. Journal of Iron and Steel Research, 2018, 30(4): 322-327.

[1]	李正龙, 庞景宇, 汤广全, 程陆凡, 张财伟, 侯星宇, 李文, 张海峰. 变形热处理对Ti₄₅Zr₂₀Nb₁₅V_(10-x)Al₁₀Mo_x难熔高熵合金组织与性能的影响[J]. 金属热处理, 2024, 49(7): 47-53.
[2]	刘安奇, 亓海全, 郭春成, 王为民, 薛启河, 李文通, 万宇, 笪仲钟. 热浸镀锌对Nb-Ti微合金化S550GD+Z钢力学性能的影响[J]. 金属热处理, 2024, 49(7): 84-90.
[3]	郭涛, 岁月, 何肖飞, 薛彦均, 黄峰. Al、N含量对齿轮钢奥氏体晶粒度的影响[J]. 金属热处理, 2024, 49(7): 113-120.
[4]	陈尧, 余红星, 杨忠波, 张林, 张坤, 岳慧芳, 邬周志. Zr-Sn-Nb合金的高温-蒸汽氧化行为[J]. 金属热处理, 2024, 49(7): 128-131.
[5]	杜思敏, 陈文雄, 胡峰荣, 任金桥, 崔小康, 周志明. DIEVAR热作模具钢的元素偏析及均匀化热处理[J]. 金属热处理, 2024, 49(7): 139-145.
[6]	陈作宁, 师仲然, 胡骞, 展之德, 罗小兵. 390 MPa级抗碰撞船体钢的奥氏体连续冷却转变[J]. 金属热处理, 2024, 49(7): 146-151.
[7]	董丽丽, 崔成波, 袁晓鸣, 刘泽田. BTP500钢板过冷奥氏体连续冷却转变行为[J]. 金属热处理, 2024, 49(7): 157-160.
[8]	李子岩, 崔宇, 许鸿翔, 王新华, 赵少甫, 郭敬强, 陈生超. 调质工艺优化对ZG34CrNiMo钢组织和低温冲击性能的影响[J]. 金属热处理, 2024, 49(7): 220-224.
[9]	徐双钱, 戴志勇, 王子瑜. 热处理工艺对Al-6.5Zn-2.3Mg-2.5Cu-0.1Zr-0.2Sc合金组织和力学性能的影响[J]. 金属热处理, 2024, 49(7): 274-280.
[10]	杨姗洁, 郝志博, 袁晓飞. DD494合金叶片返回料的热处理[J]. 金属热处理, 2024, 49(6): 1-7.
[11]	吴斯, 李非凡, 王学敏, 尚学良, 徐翔宇. 退火温度对转向架用低密度钢组织性能的影响[J]. 金属热处理, 2024, 49(6): 8-16.
[12]	吴镇宇, 秦颐鸣, 李永弟, 周培林, 周佳菊, 黎渠. 退火温度对拉深成形用Al-3.5Mg合金板材组织与性能的影响[J]. 金属热处理, 2024, 49(6): 29-35.
[13]	张淼, 万德成, 张波, 冯运莉. Fe-0.13C-2.0Mn-0.6Al复相钢在不同退火温度下的组织与性能[J]. 金属热处理, 2024, 49(6): 43-48.
[14]	候平, 王京成, 王泽, 钱金京. 真空退火对冷拔34CrMo4钢薄壁管残余应力、组织和性能的影响[J]. 金属热处理, 2024, 49(6): 85-90.
[15]	马良, 孙宁, 马军星, 陈同帅, 郭丰佳, 王经涛. 高镁Al-Mg系铝合金均匀化处理工艺[J]. 金属热处理, 2024, 49(6): 100-105.

奥氏体化前预变形对低碳微合金纳米钢组织和性能的影响

Effect of pre-deformation before austenization on microstructure and properties of low carbon microalloyed nano steel

PDF

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 15

编辑推荐

Metrics

本文评价