Shang, X., Zhou, J., Gao, F., Pang, L.
55754767700;56510510800;57111192700;57202931676;
The material modal building and test analysis of synchronous quenching process in hot stamping of ultrahigh-strength steel
(2015) Gongneng Cailiao/Journal of Functional Materials, 46 (23), pp. 23132-23138 and 23143.
https://www.scopus.com/inward/record.uri?eid=2-s2.0-84960970240&doi=10.3969%2fj.issn.1001-9731.2015.23.028&partnerID=40&md5=a6fbdff8db9616a40208fb4eb3b5b5b4

DOI: 10.3969/j.issn.1001-9731.2015.23.028
归属机构: College of Materials Science and Engineering, Chongqing University, Chongqing, 400044, China;
Panzhihua University, Panzhihua, 617000, China
摘要: High temperature tension tests of ultrahigh-strength steel BR1500HS were conducted on Gleeble-1500D test machine under the temperature interval of 300-600℃ and the strain rates were 0.03, 0.3, 0.6 and 1 s-1. Then, the change rule of flow stress was analyzed. The results showed that both the decline of temperature and the increase of strain rate could enlarge the flow stress although the flow stress stabilized after reaching its peak point. After that, the Johson-Cook material modal of BR1500HS in the synchronous quenching process was established based on the data of stress-strain and the temperature field of die and part was simulated with this modal. The formed part's temperature decreased sharply during pressure-holding process and achieved its quenching simultaneous. The martensite transformation happened during quenching process, which could improve the strength of the formed part. Finally, to realize the synchronous quenching process of ultrahigh-strength steel during hot deformation and to distribute the martensite uniformly, a synchronous cooling system of hot forming was adopted and the parameters as well as the control strategy were optimized © 2015, Chongqing Functional Materials Periodical Press Co. Ltd. All right reserved.
作者关键字: Hot stamping test;  Johson-Cook material modal;  Numerical simulation;  Synchronous quenching;  Ultrahigh-strength steel
索引关键字: Computer simulation; Forging machines; High strength steel; Martensite; Martensitic steel; Plastic flow; Quenching; Stamping; Strength of materials; Tensile testing, Control strategies; Hot-stamping; Johson-Cook material modal; Martensite transformations; Quenching process; Temperature field of die; Temperature intervals; Ultra high strength steel, Strain rate
通讯地址: Zhou, J.; College of Materials Science and Engineering, Chongqing UniversityChina; 电子邮件: 1508157277@qq.com
出版商: Journal of Functional Materials
ISSN: 10019731
CODEN: GOCAE
原始文献语言: Chinese
来源出版物名称缩写: Gongneng Cailiao
文献类型: Article
来源出版物: Scopus