锻压技术

稀土渣系对35CrNi3Mo1V合金电渣锭枝晶间距及夹杂物的影响

英文标题：Influence of rare earth slag system on dendrite spacing and inclusions in electroslag ingot for 35CrNi3Mo1V alloy

单位：1. 内蒙古北方重工业集团有限公司 2. 北京科技大学新金属材料国家重点实验室 3. 太原科技大学材料科学与工程学院

分类号：TF744

出版年,卷(期):页码：2025,50(3):58-69

摘要：

为了探究稀土渣系对典型中碳中合金钢电渣重熔后微观组织的影响规律，对比研究了三七渣系、稀土渣系对电渣重熔35CrNi3Mo1V电极锭二次枝晶间距及非金属夹杂物分布特征的作用行为。结果表明，经过稀土渣系处理的电极锭（稀土锭）的外表面、1/4处及中心位置的平均二次枝晶间距要小于经过三七渣系处理的电极锭（三七锭）。稀土处理可以改性钢中非金属夹杂物形态，三七锭非金属夹杂呈断续杆状、三角形、球形及大块状，氧化物夹杂是由多个椭球状夹杂聚集而成，尺寸≤4 μm的非金属夹杂约占总夹杂的89.5%；稀土锭非金属夹杂物包含稀土氧化物、稀土硫化物和稀土氧硫化物，该类夹杂物与原始自耗电极锭中夹杂物相比，形状较为规则、尺寸较小且分布弥散，尺寸≤4 μm非金属夹杂占总夹杂的100%。

In order to explore the influence laws of rare earth slag system on the microstructure of typical medium carbon medium alloy steel after electroslag remelting, the effects of 37 slag system and rare earth slag system on the secondary dendrite spacing and non-metallic inclusions distribution characteristics of 35CrNi3Mo1V alloy electrode ingots after electroslag remelting were compared. The results show that the average secondary dendrite spacing on the outer surface, 1/4 and center of the electrode ingot treated with rare earth slag system (rare earth ingot) is smaller than that of the electrode ingot treated with 37 slag system (37 ingot). The morphology of non-metallic inclusions in steel can be modified by the rare earth treatment. The non-metallic inclusions of 37 ingot are intermittent rod-shaped, triangular, spherical and large blocks, and the oxide inclusions is formed by the aggregation of multiple ellipsoidal inclusions. Non-metallic inclusions with a size of less than or equal to 4 μm account for about 89.5% of the total inclusions. Non-metallic inclusions of rare earth ingot include rare earth oxides, rare earth sulfides and rare earth oxysulfides. Compared with the inclusions in the original consumable electrode ingot, this type of inclusions has a more regular shape, smaller size and more dispersed distribution. Non-metallic inclusions with a size of less than or equal to 4 μm account for about 100% of the total inclusions.

基金项目：

国防基础科研计划（JCKY2022208A002）

作者简介：贾晓斌（1988-），男，硕士，高级工程师 E-mail：814308071@qq.com 通信作者：雷丙旺（1966-），男，博士，正高级工程师 E-mail：leibingwang@163.com

参考文献：

[1]胡士廉, 黄建文, 李登仁, 等. 三七渣与稀土渣电渣重熔后氧含量对高强韧CrNiMoV合金钢力学性能的影响[J]. 兵器材料科学与工程, 2018, 41(5): 86-89.

Hu S L, Huang J W, Li D R, et al. Effect of oxygen content in 37 slag and rare earth slag after electroslag remelting on mechancial properties of hiigh strength and toughness Cr-Ni-Mo-V alloy steel[J]. Ordnace Material Science and Engineering, 2018, 41(5): 86-89.

[2]戴宇恒, 满廷慧, 李朋, 等. 稀土合金化对高碳高合金工模具钢的影响[J]. 材料导报, 2024, 38(23): 1-16.

Dai Y H, Man T H, Li P, et al. Effect of rare earth alloying on highcarbon highalloy tool and die steel[J]. Materials Reports, 2024, 38(23): 1-16.

[3]王龙妹. 稀土元素在新一代高强韧钢中的作用和应用前景[J]. 中国稀土学报, 2004, 22(1): 48-54.

Wang L M. Application prospects and behaivor of RE in new generation high strength steels with superior toughness[J]. Journal of the Chinese Rare Earths, 2004, 22(1): 48-54.

[4]苟春梅，董静，崔丹丹. 34CrNiMo6钢的高温流变行为及热加工图[J]. 锻压技术，2023，48（2）：233-240.

Gou C M，Dong J，Cui D D. High temperature rheological behavior and thermal processing diagram for 34CrNiMo6 steel [J]. Forging & Stamping Technology，2023，48（2）：233-240.

[5]邹志鹏，徐东，郑冰，等. 34CrNi3MoV钢的热变形行为[J]. 锻压技术，2023，48（3）：211-218.

Zou Z P，Xu D，Zheng B，et al. Thermal deformation behavior on 34CrNi3MoV steel[J]. Forging & Stamping Technology，2023，48（3）：211-218.

[6]姜周华, 董艳伍, 耿鑫, 等. 高品质特殊钢电渣重熔技术的开发和应用[J]. 钢铁, 2023, 58(9): 15-25.

Jiang Z H, Dong Y W, Geng X, et al. Development and application of electroslag remeltingg technology for high quality speical steels[J]. Iron and Steel, 2023, 58(9): 15-25.

[7]李根, 陆民刚, 兰鹏, 等. 稀土Ce改善钢铸态组织与均质性的研究进展[J]. 钢铁研究学报, 2018, 30(2): 79-90.

Li G, Lu M G, Lan P, et al. Research progress of rare earth Ce on improvement of microstructure and homogeneity of ascast steel[J]. Journal of Iron and Steel Research, 2018, 30(2): 79-90.

[8]杨健, 李婷婷. 稀土处理的无取向硅钢夹杂物控制研究进展[J]. 钢铁, 2022, 57(7): 1-15.

Yang J, Li T T. Research progess on inclusion control of non-oriented silicon steel with REM treatment[J]. Iron and Steel, 2022, 57(7): 1-15.

[9]Wu D, Hu Q, Chen W, et al. Effects of rare earth elements (Ce, Y) on microstructure and mechanical properties of P20 die steel[A]. Proceedings of 2021 the 2nd International Conference on Mechanical Engineering and Materials (ICMEM 2021)[C].Beijing, 2021.

[10]Wang X J,Li G Q,Chen Y F, et al. Industrial trials on preparation of ceriumtreated H13 steel by electroslag remelting with ceriumoxide containing slag[J]. Steel Research International, 2023, 94(6): 1-13.

[11]朱健, 周文健, 张志豪, 等. 稀土渣系电渣重熔H13钢铸锭的成分、组织及夹杂物特征[J]. 钢铁研究学报, 2021, 33(9): 966-978.

Zhu J, Zhou W J, Zhang Z H, et al. Composition, microstructure and inclusion characteristics of H13 steel ingot by electroslag remelting with rare earth slag[J]. Journal of Iron and Steel Research, 2021, 33(9): 966-978.

[12]富晓阳, 杨吉春. 稀土Ce对18Cr-5Ni-4CuN 奥氏体不锈钢热压缩性能的影响[J]. 钢铁研究学报, 2021, 33(8): 820-827.

Fu X Y, Yang J C. Effect of rare earth Ce on hot compression of 18Cr-5Ni-4CuN austenitic stainless steel[J]. Journal of Iron and Steel Research, 2021, 33(8): 820-827.

[13]辛浩浩, 计云萍, 周印, 等. 添加铈对Fe-15Mn-0-6C 合金中夹杂物的影响[J]. 中国稀土学报, 2023, 41(4): 774-781.

Xin H H, Ji Y P, Zhou Y, et al. Effect of cerium on inclusions in Fe-15Mn-06C alloy[J]. Journal of the Chinese Society of Rare Earths, 2023, 41(4): 774-781.

[14]乔永枫,毛丰,陈冲,等.稀土Eu对铝/钢液-固复合双金属界面组织及力学性能的影响[J].稀有金属,2023,47(9):1316-1323.

Qiao Y F， Mao F， Chen C， et al. Interface microstructure and mechanical properties of Al/steel bimetal prepared by liquidsolid casting with rare earth Eu addition[J]. Chinese Journal of Rare Metals，2023,47(9):1316-1323.

[15]鲍道华, 黄宇, 成国光, 等. Ce含量对H13钢中稀土夹杂物析出行为的影响[J]. 钢铁研究学报, 2021, 33(8): 792-800.

Bao D H, Huang Y, Cheng G G, et al. Effect of Ce content on precipitation behaivor of rare earth inclusions in H13 steel[J]. Journal of Iron and Steel Research, 2021, 33(8): 792-800.

[16]Wang X J, Li G Q, Liu Y, et al. Cerium addition effect on modification of inclusions, primary carbides and microstructure refinement of H13 die steel[J]. ISIJ International, 2021, 61(6): 1850-1859.

服务与反馈：

【文章下载】【加入收藏】