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Faculty

Name: Xifeng LI

Title: Associate Professor

Office: Room 302, Zhongshi Building, Xuhui Campus

Tel: +86-21-6283-0509

Fax: +86-21-6282-6575

Email: lixifeng@sjtu.edu.cn

URL:http://ifte.sjtu.edu.cn/english

Platform: Institute of Forming Technology and Equipment

Introduction

Dr. Li has obtained main research achievements in basic studies and industry applications of sheet metal forming field as follows:

1. Sheet metal forming deformation mechanism of new materials and its mechanical model. More widely used yield criterion and ductile fracture criterion are proposed. They are published in International Journal of Plasticity and European Journal of Mechanics A /Solids, which are most downloaded ones. By comprehensive simulation analysis based on proposed mechanical models, the yield of rocket metal diaphragm is improved by five times in Shanghai Aerospace Equipments Manufacturer Co., Ltd. The thermomechanical treatment process of 2219 aluminum alloy is optimized to solve the low strength problem of tanks in Institute of Aerospace Special Material and Technology. The hot forming temperature of Invar 36 alloy is reduced from 800℃ based on experience to 600℃ in Shanghai Aircraft Manufacturing Co., Ltd. The developed surface partition software is applied in Invar 36 alloy mould of C919 aircraft.

2. Electrically-assisted forming technology for difficult-to-deform sheet. Based on different process tests and quantitative analysis, it is believed that the electroplastic effect mainly results from Joule heating one. The previous international opinion that pure electroplastic effect plays a key role is clarified. The electrically-assisted incremental section forming technology is firstly proposed. Different electrically-assisted forming processes are developed.

3. Hydrogenated superplastic forming/diffusion bonding (SPF/DB) process. SPF/DB temperature of titanium alloy by hydrogen addition is reduced by about 100℃. The difficult problem of DB parameter mismatching for different alloy sheets is solved. Through precise design of SPF die and DB process optimization, the testing specimens of titanium alloy fan blade are supplied for AECC Commercial Aircraft Engine Co., Ltd. The trailing edge and tip protection of titanium alloy for first Chinese composite fan blade is produced by SPF technique. The method about hydrogen addition in the sheet with higher DB temperature is firstly proposed to obtain high quality DB in different materials.

Biographical Information

Education Experience:

09/1998-07/2002, B.S., School of Materials Science and Engineering, Harbin Institute of Technology

09/2002-07/2004, M.S., School of Materials Science and Engineering, Harbin Institute of Technology

09/2004-10/2007, Ph.D, School of Materials Science and Engineering, Harbin Institute of Technology

Work Experience:

2007.11-2010.12, Lecturer, Department of Plasticity Technology, Shanghai Jiao Tong University

2011.5-2012.5, Visiting Scholar, Department of Mechanical Engineering, Northwestern University, USA

2011.1-present, Associate Professor, Institute of Forming Technology & Equipment, School of Materials Science and Engineering, Shanghai Jiao Tong University


Research Interests

New materials stamping and its mechanical model; Electroplastic forming; Superplastic forming/diffusion bonding


Selected Publications

[1]Xifeng Li, Jun Chen*, Liyan Ye, Wei Ding, Pengchao Song. Influence of strain rate on tensile characteristics of SUS304 metastable austenitic stainless steel. Acta Metallurgica Sinica (English Letters), 2013, 26(6):657-662

[2]Xifeng Li*, Qiang Zhou, Shuangjun Zhao, Jun Chen.  Effect of pulse current on bending behavior of Ti6Al4V alloy. Procedia Engineering, 2014, 81:1799-1804

[3]Pengchao Song, Xifeng Li*, Wei Ding, Jun Chen. Electroplastic tensile behavior of 5A90 Al-Li Alloys. Acta Metallurgica Sinica (English Letters), 2014, 27(4): 642-648

[4]Xifeng Li, Wei Ding, Jian Cao, Liyan Ye, Jun Chen*. In-situ TEM observation on martensitic transformation during tensile deformation of SUS304 metastable austenitic stainless steel. Acta Metallurgica Sinica (English Letters), 2015, 28(3):302-306

[5]Xifeng Li, Kun Lei, Peng Song, Xinqin Liu, Fei Zhang, Jianfei Li, Jun Chen*. Strengthening of aluminum alloy 2219 by thermo-mechanical treatment. Journal of Materials Engineering and Performance, 2015, 24(10):3905-3911

[6]Xifeng Li, Shen Wang, Shuangjun Zhao, Wei Ding, Jun Chen*, Guohong Wu. Effect of pulse current on the tensile deformation of SUS304 stainless steel. Journal of Materials Engineering and Performance, 2015, 24(12):5065-5070

[7]Xifeng Li, Boyu Ji, Qiang Zhou, Jun Chen*, Peng Gao. Influence of grain size on electrically-assisted tensile behavior of Ti-6Al-4V alloy. Journal of Materials Engineering and Performance, 2016, 25(10):4514-4520

[8]Xifeng Li, Jiaojiao Li, Wei Ding, Shuangjun Zhao, Jun Chen*.  Stress Relaxation in Tensile Deformation of 304 Stainless Steel. Journal of Materials Engineering and Performance, 2017, 26(2): 630-635

[9]Xifeng Li, Jun Jiang, Shen Wang, Jun Chen*, Yaoqi  Wang. Effect of hydrogen on the microstructure and superplasticity of Ti-55 alloy.  International Journal of Hydrogen Energy, 2017, 42(9): 6338-6349

[10]Xifeng Li, Xiaochong Lü, Huiping Wu, Boyu Ji, Jun Chen*, Jianfei Li. Effect of grain size on the superplastic deformation behavior of Ti-55 alloy. Procedia Engineering, 2017, 207:1880-1885

[11]Xifeng Li, Nannan Chen, Jun Chen*, Qiongfeng Mei, Li Wan, Chunli Jia, He Liu. Superplastic deformation behavior of Ti-55 alloy without and with 0.1wt%H addition. Materials Science & Engineering A, 2017, 704:386-390

[12]Xifeng Li, Nannan Chen, Jiaojiao Li, Xueting He, Hongbing Liu, Xingwei Zheng, Jun Chen*. Effect of temperature and strain rate on deformation behavior of Invar 36 alloy. Acta Metallurgica Sinica, 2017, 53(8):968-974  

[13]Qi Hu1, Xifeng Li1, Xianhong Han, Jun Chen*. A new shear and tension based ductile fracture criterion: modeling and validation.  European Journal of Mechanics A/Solids, 2017, 66: 370-386

[14]Xifeng Li, Nannan Chen, Huiping Wu, Jun Chen*, Fengsheng Qu. Low-temperature superplastic gas bulging of Ti-55 alloy by hydrogen addition. International Journal of Hydrogen Energy, 2018, 43: 12455 -12459

[15]Xifeng Li, Guopeng Jia, Fengsheng Qu, Huiping Wu, Jun Chen*. Ultrafine grain refinement and superplasticity of Ti-55 alloy obtained by hydrogen absorption and desorption. Journal of Materials Engineering and Performance, 2018, 27(7): 3472-3477

[16]Xifeng Li*, Guopeng Jia, Xudong Cao, Jun Chen, Guohong Wu. Superplastic deformation behavior of as-received and hydrogenated Ti2AlNb Alloy. Defect and Diffusion Forum, 2018, 38:109-113

[17]Fuhui Zhu, Heli Peng, Xifeng Li*, Jun Chen. Dissimilar diffusion bonding behavior of hydrogenated Ti2AlNb-based and Ti-6Al-4V alloys. Materials and Design, 2018,159: 68-78

[18]Huiping Wu, Heli Peng, Xifeng Li*, Jun Chen. Effect of hydrogen addition on diffusion bonding behavior of Ti-55 alloy. Materials Science and Engineering A, 2019, 739: 244-253

[19]Jingfeng Luo, Wei Xiong, Xifeng Li*, Jun Chen. Investigation on high-temperature stress relaxation behavior of Ti-6Al-4V sheet. Materials Science and Engineering A, 2019, 743: 755-763


Research Projects

[1]Study on stamping mechanism of metastable austenitic stainless steel under electroplastic effect, NSFC (51105248), 2012.1-2014.12, PI

[2]Study on superplastic deformation/synchronous dynamic diffusion bonding interface mechanism of Ti-55 high-temperature titanium alloy, NSFC (51475295), 2015.1-2018.12, PI

[3]Study on fatigue life improvement and its underlying mechanism of diffusion bonded laminate of dissimilar titanium alloys, NSFC (51875350), 2019.1-2022.12, PI

[4]Efficient diffusion bonding mechanism of multi-structure and its shape and property control method, SAST fund, 2019.1-2020.12, PI

[5]Electromagnetic (pulse current) assisted precision forming technique of high temperature titanium alloy, Equipment Pre-research Fund of Equipment Development Department of People‘s Republic of China Central Military Commission, 61409230408, 2018.12-2020.12, PI

[6]Study on diffusion bonding mechanism of different titanium alloys and its application, the SAST-SJTU fund, USCAST2016-20, 2017.1-2018.12, PI

[7]Study on SPF/DB technology of Ti750 high temperature titanium alloy/TA15 titanium alloy and its mechanism, CALT fund, 2017.1-2018.12, PI

[8]Study on dynamic strength evaluation method and failure model of diffusion bonding joint for thin shell structure in aeroengine, Aeronautical Science Foundation of China, 2016ZE57008, 2016/10-2018/09, PI


Honors & Awards

Program of Shanghai Academic Research Leader, 2019

Third Class Prize of Shanghai Scientific and Technological Progress Award, 2018

Shanghai Jiao Tong University SMC-Chenxin Young Scholar Award, 2014

Member, Environment Protection Committee, Society of Plasticity Engineering, CMES

Editorial Member, International Journal of Materials Science

Expert Editor, Journal of Functional Materials
Corresponding Editor, Journal of Netshape Forming Engineering


800 Dongchuan Road, Minhang District, Shanghai, China Tel: +86-21-3420-3098