Zhang, J., Zhou, J., Tao, Y., Shen, L., Li, M.
56199032900;56510510800;56604577500;56604527400;57199160587;
The microstructure and properties change of dies manufactured by bimetal-gradient-layer surfacing technology
(2015) International Journal of Advanced Manufacturing Technology, 80 (9-12), pp. 1807-1814. 被引用 4 次.
https://www.scopus.com/inward/record.uri?eid=2-s2.0-84942366335&doi=10.1007%2fs00170-015-7170-7&partnerID=40&md5=fa7929002b47f90d7345d944c4f10828

DOI: 10.1007/s00170-015-7170-7
归属机构: School of Materials Science and Engineering, ChongQing University, Chongqing, 400044, China;
Automobile Engineering Institute, Guangzhou Automobile Group Co., Ltd, Guangzhou, 510000, China
摘要: The finite element model of a die manufactured by the bimetal-gradient-layer surfacing method was established based on ZG29MnMoNi casting steel. Then, simulation was conducted to analyze the temperature field of the die and its cycle features under working conditions. By comparing the microstructure and properties of cast-steel matrix of the die before and after producing 5761 parts on a 63MN hot die forging press, sensitive indexes that affect the service life of the surfacing die were determined. The results have shown that the microstructure of cast-steel matrix before and after service is both pearlites and ferrites. When it is closer to the welding line, the carbides precipitate out more obviously, the dendrites segregate less, and the microstructure tends to be more compact. The mechanical properties are decreased as a whole after service: the tensile strength, yield strength, reduction of area, and elongation are declined by 7, 17, 24, and 18 %, respectively. Meanwhile, microhardness and impact toughness have shown a decrease of 10 and 28.6 %, respectively. The working temperature has a strong relationship with microstructure and property changes. The performance of cast-steel matrix after service can still satisfy the operating requirements of the 63MN hot die forging press, which can be recycled in remanufacturing process. © 2015, Springer-Verlag London.
作者关键字: Cast-steel matrix;  Microstructure;  Properties;  Surface welding;  Temperature field
索引关键字: Bimetals; Carbides; Dies; Finite element method; Forging; Mechanical properties; Microstructure; Presses (machine tools); Steel metallurgy; Temperature; Temperature distribution; Tensile strength; Upsetting (forming); Welding, Cast steel; Microstructure and properties; Operating requirements; Properties; Remanufacturing process; Surface welding; Surfacing technology; Working temperatures, Steel castings
通讯地址: Zhou, J.; School of Materials Science and Engineering, ChongQing UniversityChina; 电子邮件: zjs1990-cqu@cqu.edu.cn
出版商: Springer London
ISSN: 02683768
CODEN: IJATE
原始文献语言: English
来源出版物名称缩写: Int J Adv Manuf Technol
文献类型: Article
来源出版物: Scopus