u 个人简介

郑杰，博士、讲师、硕士生导师。2014.09-2018.07，获得中北大学材料成型及控制工程专业工学学士学位;2018.09-2023.07,获得中北大学材料加工工程专业工学博士学位；2023.07-至今，重庆理工大学材料科学与工程学院教师。主持重庆市教委科技项目1项、重庆理工大学科研启动基金1项，在国内外重要刊物发表论文20余篇，授权国家发明专利6项。

u 研究领域

轻合金构件控制塑性成形技术；镁合金形变热处理及强韧化机理研究；先进金属材料粉末注射成形技术及应用

u 承担的主要项目

[1] 预时效扩径旋转反挤压稀土镁合金筒形件组织演变规律和强韧化机理研究，重庆市教委科技项目，2024.10-2027.9，4万，主持。

[2]高校启动基金，重庆理工大学科研启动基金项目，2023.7-2026.7，60万，主持。

u 代表性成果

[1] J. Zheng, T. Zhou, Z. Zhang, Z. Yan, X. Ren, Y. Xue, Revealing the microstructure, texture evolution and mechanical properties along the whole wall of Mg-Gd-Y-Zn-Zr cylinders by tailoring rotary backward extrusion parameters, Journal of Materials Research and Technology, 30 (2024) 8067-8079.

[2] J. Zheng, Z. Yan, J. Ji, Y. Shi, H. Zhang, Z. Zhang, Y. Xue, Effect of heat treatment on mechanical properties and microstructure evolution of Mg-9.5Gd-4Y-2.2Zn-0.5Zr alloy, Journal of Magnesium and Alloys, 10 (2022) 1124–1132.

[3] J. Zheng, Z. Chen, Z. Yan, Z. Zhang, Q. Wang, Y. Xue, Preparation of ultra-high strength Mg-Gd-Y-Zn-Zr alloy by pre-ageing treatment prior to extrusion, Journal of Alloys and Compounds, 894 (2022) 162490.

[4] J. Zheng, L. Liu, W. Liu, Y. Huang, Z. Zhang, Q. Wang, Z. Yan, Y. Xue, Effect of heterogeneous microstructure on the mechanical properties and deformation behavior of rotating backward extruded ZK61 alloy, Journal of Alloys and Compounds 926 (2022) 166920.

[5] J. Zheng, L. Liu, Z. Zhang, Q. Wang, Z. Yan, Y. Xue, Multi-pass rolling-extrusion of large-scale thin-walled square tube with longitudinal inner ribs, The International Journal of Advanced Manufacturing Technology, 124(7-8) (2022) 2335-2349.

[6] J. Zheng, Z. Chen, Z. Yan, Z. Zhang, Y. Xue, An alternating ageing-annealing process for enhancing strength and ductility of a Mg-Gd-Y-Zn-Zr alloy, Materials Science and Engineering: A 828 (2021) 142103.

[7] J. Zheng, Z. Yan, Q. Wang, Z. Zhang, Y. Xue, Microstructure and Texture Evolution of AZ31 Alloy Prepared by Cyclic Expansion Extrusion with Asymmetrical Extrusion Cavity at Different Temperatures, Materials (Basel), 13(17) (2020) 3757.

[8] J. Zheng, Z. Yan, J. Yu, Z. Zhang, H. Fan, K. Xu, Y. Xue, Microstructure and mechanical properties of Mg-Gd-Y-Zn-Zr alloy by cyclic expansion-extrusion with an asymmetrical extrusion cavity (CEE-AEC), Materials Research Express, 6(10) (2019) 1065c8.

[9] J. Xu, J. Zheng, W. Liu, Y. Huang, Z. Yan, Z. Zhang, Q. Wang, Y. Xue, Recrystallization behavior and strengthening mechanism of extruded Mg−Gd−Y−Zn−Zr alloy with different pre-aged states, Transactions of Nonferrous Metals Society of China, 34(2) (2024) 480-503.

[10] Z. Liu, J. Zheng, Z. Zhang, Y. Xue, High elongation heterostructure rare earth magnesium alloy based on rotating backward extrusion process, Journal of Materials Research and Technology, 30 (2024) 6108-6122.

[11] Z. Chen, J. Zheng, Z. Zhang, Y. Xue, Effects of die motion parameters on the microstructures and mechanical properties of rotary backward extruded AZ80 alloys, Journal of Materials Processing Technology, 319 (2023) 118081.

[12] L. Jia, J. Zheng, Z. Yan, L. Liu, X. Dai, Z. Zhang, Y. Xue, Effect of pre-aging on microstructure, activation energy, texture evolution of Mg–9Gd–4Y–2Zn–0.5Zr alloy during compression deformation, Journal of Materials Research and Technology, 26 (2023) 4755-4769.

[13] M. Liang, J. Zheng, H. Liu, B. Yao, Microstructure and mechanical properties of AZ31 alloy prepared by cyclic expansion extrusion with asymmetrical extrusion cavity, Transactions of Nonferrous Metals Society of China, 32(1) (2022) 122-133.

[14]郑杰; 薛勇; 张治民; 王强; 一种铝镁合金杯形件旋转挤压成形模具, 2022-05-03, 中国, ZL202010622836.0

[15]郑杰; 薛勇; 张治民; 王强; 一种高性能铝镁合金管材缩径旋转挤压成形模具, 2022-08-26, 中国, ZL202010721934.X

[16]薛勇; 郑杰; 张治民; 王强; 一种铝镁合金杯形件旋转挤压成形方法, 2022-05-03, 中国, ZL202010620342.9

[17]薛勇; 郑杰; 张治民; 王强; 一种高性能铝镁合金管材旋转挤压成形方法, 2022-05-31, 中国, ZL202010723035.3

[18]薛勇; 张治民; 王强; 郑杰;一种高强韧稀土镁合金及其处理方法, 2022-05-31, 中国, ZL202110536044.6

[19]薛勇; 张治民; 王强; 郑杰;一种预时效制备高强韧稀土镁合金的方法, 2022-05-31, 中国, ZL202110534599.7

u 联系方式

E-mail：cqzhengjie@cqut.edu.cn