300M钢静态保温过程微观组织演化的原位分析

doi:10.7527/S1000-6893.2023.29734

材料工程与机械制造

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300M钢静态保温过程微观组织演化的原位分析

赵明杰¹^,², 黄亮³, 孙朝远⁴, 刘秀良⁵, 李建军³^,⁶, 郭正华¹()

^1.南昌航空大学航空制造工程学院，南昌 330063
^2.南昌航空大学江西省航空构件成形与连接重点实验室，南昌 330063
^3.华中科技大学材料科学与工程学院材料成形与模具技术全国重点实验室，武汉 430074
^4.中国第二重型机械集团德阳万航模锻有限责任公司，德阳 618000
^5.江西景航航空锻铸有限公司，景德镇 330046
^6.黄石科创模具技术研究院，黄石 435007

收稿日期:2023-10-18 修回日期:2023-12-14 接受日期:2023-12-20 出版日期:2024-09-25 发布日期:2023-12-26
通讯作者: 郭正华 E-mail:guozhenghua@nchu.edu.cn
基金资助:
国家自然科学基金(52305373);江西省自然科学基金(20232BAB214053);江西省重大科技研发专项(20194ABC28001);江西省航空构件成形与连接重点实验室开放课题(EL202303299);南昌航空大学博士科研启动金(EA202303235)

In-situ analysis on microstructure evolution of 300M steel during static holding process

Mingjie ZHAO¹^,², Liang HUANG³, Chaoyuan SUN⁴, Xiuliang LIU⁵, Jianjun LI³^,⁶, Zhenghua GUO¹()

^1.School of Aeronautical Manufacturing Engineering，Nanchang Hangkong University，Nanchang 　330063，China
^2.Jiangxi Key Laboratory of Forming and Joining Technology for Aerospace Components，Nanchang Hangkong University，Nanchang 　330063，China
^3.State Key Laboratory of Materials Processing and Die & Mould Technology，School of Materials Science and Engineering，Huazhong University of Science and Technology，Wuhan 　430074，China
^4.China National Erzhong Group Deyang Wanhang Die Forging Co. LTD. ，Deyang 　618000，China
^5.Jiangxi Jinghang Aviation Forging and Casting Co. LTD. ，Jingdezhen 　333046，China
^6.Huangshi Mold Industrial Technology Research Institute，Huangshi 　435007，China

Received:2023-10-18 Revised:2023-12-14 Accepted:2023-12-20 Online:2024-09-25 Published:2023-12-26
Contact: Zhenghua GUO E-mail:guozhenghua@nchu.edu.cn
Supported by:
National Natural Science Foundation of China(52305373);Jiangxi Provincial Natural Science Foundation(20232BAB214053);Science and Technology Major Project of Jiangxi Province(20194ABC28001);Fund of Jiangxi Key Laboratory of Forming and Joining Technology for Aerospace Components(EL202303299);PhD Starting Foundation of Nanchang Hangkong University(EA202303235)

摘要/Abstract

摘要：

采用热压缩与高温保温相结合的实验方法原位研究了不同工艺参数对300M钢静态保温过程微观组织演化的影响。结果表明，应变对静态保温过程晶粒尺寸的影响主要归因于微观组织演化的遗传继承关系，应变速率的影响主要归因于应变储存能的作用，保温温度的影响主要归因于静态再结晶机制的温度依赖性，而保温时间的影响主要归因于晶粒形核、吞并机制。基于工艺参数与静态保温过程晶粒尺寸演化的对应关系，提出了新的能够有效描述变形及静态保温参数影响的静态保温晶粒尺寸模型。研究为300M钢大型构件多道次热锻成形过程微观组织演化的准确预测及有效调控奠定了理论基础。

关键词: 超高强钢, 原位研究, 静态保温, 微观组织演化, 晶粒尺寸模型

Abstract:

The effects of different processing parameters on microstructure evolution of 300M steel during the static holding process are studied in situ by combining hot compression and high-temperature holding experiments. Results show that the influence of strain on the average grain size evolution during the static holding process is mainly attributed to the hereditary of microstructures， the influence of strain rate is mainly attributed to strain storage energy， the influence of holding temperature is mainly attributed to the temperature dependence of static recrystallization， and the influence of holding time is mainly attributed to the mechanisms of grain nucleation and annexation. Based on the relationship between processing parameters and grain size evolution， a new grain size model is proposed， which can effectively describe the effects of deformation parameters and static holding parameters on grain size evolution. The above research provides a theoretical foundation for accurately predicting and effectively controlling microstructure evolution during the multi-pass hot forging of 300M steel heavy components.

Key words: ultrahigh strength steel, in-situ investigation, static holding process, microstructure evolution, grain size model

中图分类号:

V261.3

赵明杰, 黄亮, 孙朝远, 刘秀良, 李建军, 郭正华. 300M钢静态保温过程微观组织演化的原位分析[J]. 航空学报, 2024, 45(18): 429734.

Mingjie ZHAO, Liang HUANG, Chaoyuan SUN, Xiuliang LIU, Jianjun LI, Zhenghua GUO. In-situ analysis on microstructure evolution of 300M steel during static holding process[J]. Acta Aeronautica et Astronautica Sinica, 2024, 45(18): 429734.

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主管单位：中国科学技术协会主办单位：中国航空学会北京航空航天大学

变形温度/K	应变速率/s^-1	应变	保温温度/K	保温时间/s
1 173	0.01	0.70	1 173	600
1 373	0.01	0.70	1 373	600
1 473	0.01	0.70	1 473	600
1 273	0.01	0.70	1 273	600
1 273	0.10	0.70	1 273	600
1 273	1.00	0.70	1 273	600
1 273	10.00	0.70	1 273	600
1 273	0.01	0.35	1 273	600
1 273	0.01	0.90	1 273	600
1 273	0.01	1.20	1 273	600

300M钢静态保温过程微观组织演化的原位分析

In-situ analysis on microstructure evolution of 300M steel during static holding process

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