CSP工艺下稀土冷轧板退火过程中第二相析出的定量研究

doi:10.13251/j.issn.0254-6051.2020.01.034

金属热处理 ›› 2020, Vol. 45 ›› Issue (1): 170-173.DOI: 10.13251/j.issn.0254-6051.2020.01.034

CSP工艺下稀土冷轧板退火过程中第二相析出的定量研究

国春艳¹, 刘玉宝², 高日增², 吕卫东²

1. 包头铁道职业技术学院机械与电气系, 内蒙古包头 014000;
2. 包头稀土研究院白云鄂博稀土资源研究与综合利用国家重点实验室, 内蒙古包头 014030

收稿日期:2019-07-05 出版日期:2020-01-25 发布日期:2020-04-03
通讯作者: 刘玉宝,E-mail:liuyubao1985@126.com
作者简介:国春艳(1985—),女,讲师,硕士,主要从事稀土材料加工工作,发表论文4篇,E-mail:guochunyan1010@163.com。

Quantitative study on secondary phase precipitation of rare earth cold-rolled sheet during annealing in CSP process

Guo Chunyan¹, Liu Yubao², Gao Rizeng², Lü Weidong²

1. Baotou Railway Vocational and Technical College, Department of Mechanical and Electrical Engineering, Baotou Inner Mongolia 014000, China;
2. Baotou Research Institute of Rare Earths, State Key Laboratory of Baiyunobo Rare Earth Resource Researches and Comprehensive Utilization, Baotou Inner Mongolia 014030, China

Received:2019-07-05 Online:2020-01-25 Published:2020-04-03

摘要/Abstract

摘要： 研究了CSP工艺下稀土冷轧板冷轧后退火过程中的第二相析出行为,模拟了某企业685 ℃×9 h退火工艺,利用光学显微镜和X射线衍射仪分析了退火前后的微观组织和宏观织构的变化;采用非水电解分离法从试验钢中提取第二相粒子,并利用X射线衍射分析了第二相析出物类型;再使用化学法对退火过程中第二相析出量的变化进行了定量分析,并结合析出动力学计算分析第二相析出规律。结果表明,经过该退火工艺后,晶粒从典型的纤维状冷轧组织演变为再结晶饼形晶粒,非{111}织构有所减弱,{111}织构有所增强;试验钢中的第二相类型主要为MnS、Fe₃C和AlN,MnS在退火过程中几乎不析出,Fe₃C主要在室温到570 ℃升温过程中析出,AlN随着退火温度的升高而不断析出,在685 ℃附近析出最快。

关键词: CSP工艺, 稀土冷轧板, 罩式退火, 第二相析出

Abstract: Precipitation behavior of the secondary phases of rare earth cold-rolled sheet during annealing based on CSP process was studied. The 685 ℃×9 h annealing process of an enterprise was simulated. The change of microstructure and macroscopic texture before and after annealing ere analyzed by means of optical microscope and X-ray diffractometer. The secondary phase particles were extracted from the experimental steel by non-aqueous electrolysis separation method and the secondary phases were analyzed by X-ray diffractometer. The chemical method was used to quantitatively analyze the change of the secondary phases precipitation during the annealing process of the steel and the precipitation behavior of the secondary phases were analyzed by the precipitation kinetics calculation. The results indicate that after the annealing process, the grains of the steel are transformed from a typical fibrous cold-rolled microstructure to a recrystallized cake-shaped grain and non-{111} textures are weakened while {111} textures enhanced. The secondary phases in the steel are mainly MnS, Fe ₃ C and AlN types. In the scope of this experiment, MnS hardly precipitates during the annealing process. Fe ₃ C mainly precipitates during the room temperature to 570 ℃. AlN precipitates continuously with the annealing temperature increasing, and precipitates fastest at about 685 ℃.

Key words: CSP process, rare earth cold-rolled sheet, batch annealing, secondary phases precipitation

中图分类号:

TG142.1

国春艳, 刘玉宝, 高日增, 吕卫东. CSP工艺下稀土冷轧板退火过程中第二相析出的定量研究[J]. 金属热处理, 2020, 45(1): 170-173.

Guo Chunyan, Liu Yubao, Gao Rizeng, Lü Weidong. Quantitative study on secondary phase precipitation of rare earth cold-rolled sheet during annealing in CSP process[J]. HTM, 2020, 45(1): 170-173.

参考文献

[1]Reip C P, Hennig W, Kempken J, et al. Recent developments in integrated technology of compact strip production[J]. Iron and Steel Technology, 2005, 2(2): 25-32.
[2]尚秀廷, 华国龙, 高军. 基于CSP工艺低碳钢的热变形模拟[J]. 包钢科技, 2019, 45(1): 68-72.
Shang Xiuting, Hua Guolong, Gao Jun. Thermal deformation simulation for low-carbon seel with CSP technology[J]. Science and Technology of Baotou Steel, 2019, 45(1): 68-72.
[3]宋娜娜, 鲍思前, 赵刚, 等. 基于CSP工艺锯片钢75Cr1静态再结晶研究[J]. 特殊钢, 2017, 38(5): 5-9.
Song Nana, Bao Siqian, Zhao Gang, et al. A study on static recrystallization of saw steel 75Cr1 based on CSP process[J]. Special Steel, 2017, 38(5): 5-9.
[4]Flemming Gunter, Hensger Karl Ernst. Extension of product range and perspectives of CSP technology[J]. MPT International, 2000, 23(1): 54-64.
[5]陈志军, 任慧平, 金自力, 等. 稀土Ce对取向硅钢脱碳退火组织及抑制剂的影响[J]. 金属热处理, 2018, 43(11): 26-30.
Chen Zhijun, Ren Huiping, Jin Zili, et al. Effect of rare earth ce on microstructure and inhibitor for oriented silicon steel during decarburizing annealing[J]. Heat Treatment of Metals, 2018, 43 (11): 26-30.
[6]耿文远, 高平, 郭伟沯, 等. 淬火温度对含Ce稀土抗冲击钢组织与硬度的影响[J]. 金属热处理, 2019, 44(10): 77-80.
Geng Wenyuan, Gao Ping, Guo Weiza, et al. Effect of quenching temperature on microstructure and hardness of RE-Ce impact resistant steel[J]. Heat Treatment of Metals, 2019, 44 (10): 77-80.
[7]瞿伟, 任慧平, 董方, 等. 富镧CaO-SiO₂-Al₂O₃-MgO渣含铝压块自还原的行为研究[J]. 稀有金属材料与工程, 2019, 48(7): 2338-2343.
Qu Wei, Ren Huiping, Dong Fang, et al. Behavior of Lanthanum-rich aluminum-containing CaO-SiO₂-Al₂O₃-MgO slag briquets self-reduction[J]. Rare Metal Materials and Engineering, 2019, 48(7): 2338-2343.
[8]郭锋, 林勤. 稀土元素对低硫氧合金结构钢冲击韧性的影响机制[J]. 中国稀土学报, 2008, 26(1): 97-101.
Guo Feng, Lin Qin. Mechanism of rare earth elements on impact toughness of extra low sulfur and oxygen structural alloy steel[J]. Journal of the Chinese Rare Earth Society, 2008, 26(1): 97-101.
[9]刘承军, 姜茂发, 李春龙, 等. 稀土对重轨钢冲击韧度的影响作用机制[J]. 过程工程学报, 2006(1): 135-137.
Liu Chengjun, Jiang Maofa, Li Chunlong, et al. Mechanism and effect of rare earth on the impacting toughness of heavy rail steel[J]. The Chinese Journal of Process Engineering, 2006(1): 135-137.
[10]瞿伟, 任慧平, 金自力, 等. 稀土镧对低合金高强钢微观组织及冲击韧性影响[J]. 稀有金属材料与工程, 2018, 47(7): 2087-2092.
Qu Wei, Ren Huiping, Jin Zili, et al. Effect of lanthanum on the microstructure and impact toughness of HSLA steel[J]. Rare Metal Materials and Engineering, 2018, 47(7): 2087-2092.
[11]Leslie W C, Rickett R L, Dotson C L. Solution and precipitation of aluminum nitride in relation to the structure of low carbon steels[J]. Transactions of The ASM, 1954, 46: 1470-1499.
[12]毛卫民, 杨平, 陈冷. 材料织构分析原理与检测技术[M]. 北京: 冶金工业出版社, 2008.
[13]Liu Z, Wei J, Cai K. A coupled mathematical model of microsegregation and inclusion precipitation during solidification of silicon steel[J]. ISIJ International, 2002, 42: 958-963.
[14]Chipman J. Thermodynamics and phase digram of the Fe-C system[J]. Metallurgical and Materials Transactions B, 1972, 3(1): 55-64.

CSP工艺下稀土冷轧板退火过程中第二相析出的定量研究

Quantitative study on secondary phase precipitation of rare earth cold-rolled sheet during annealing in CSP process

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