Special surface impact reinforced stress corrosion and fatigue technology and application won the second prize of the National Science and Technology Progress Award

On the morning of January 8, 2019, the 2018 National Science and Technology Awards Conference was held in Beijing. From Nanjing University of Technology, Sinopec Yangzi Petrochemical Co., Ltd., Changzhou University Lingxiang, Xia Xiangming, Kong Dejun, Yang Xinjun, Wei Xinlong, Yang Sijun, Fan Genfang, Shi Yonghong, Ma Gang, Zhu Xiaolei, these ten researchers jointly completed the "special surface impact reinforced stress corrosion and fatigue technology and application" won the second prize of the National Science and Technology Progress Award.
Against stress corrosion and fatigue failure problems in key equipment in the petrochemical, chemical, power and other fields, the team has developed low-cost, efficient and reliable surface treatment technology
China
) after more than ten years of research and practice. Three surface impact-reinforced stress-resistant corrosion and fatigue methods based on glass, ultrasonic and laser are invented, and a collaborative evaluation system of impact process-microstructure-reinforced effect is constructed, and the scientific prediction of stress corrosion and fatigue life of components after surface impact reinforcement is realized.
project was granted 15 patents for inventions and published 67 papers, of which SCI included 43.
objective evaluation
1. The project has been recognized by domestic industry experts
the results of the 2017 project through the China Petroleum and Chemical Industry Federation scientific and technological achievements appraisal, the appraisal committee said: "invented three new surface strengthening treatment processes, solve the problem of stress corrosion and fatigue damage, stress corrosion environment service life increased more than 5 times, to reach the international advanced level."
2011 project results through the China Petroleum and Chemical Industry Federation of scientific and technological achievements appraisal, the appraisal committee held that: "the results in chemical equipment for the first time industrial application, chemical equipment in the process technology research and application of pressure corrosion to reach the international advanced level."
2. The research idea of this project has been recognized by domestic and foreign counterparts
Cranfield University in the United Kingdom, Milan University of Technology in Italy, Harbin University of Technology, East China University of Technology, Nanjing University of Aeronautics and Astronautics and other domestic and foreign scholars believe that "special surface impact reinforced stress corrosion" is very effective, special surface impact reinforced stress corrosion theory research and process optimization has become an important basis for petrochemical equipment anti-stress corrosion cracking technology.
3. The results of the project were checked through the new scientific and technological consulting units at the national level, and the results showed that the research was innovative

4. Highly appraised by domestic industry users
Yangzi Petrochemical, Yan Tianhua and other enterprises evaluated the project's technology: the application of this technology significantly extended the life cycle of equipment, reduced the inspection and repair of equipment, increased the amount of equipment unmuted parking production, reduced equipment safety hazards, to ensure the long-term safe operation of equipment.
5. The surface impact reinforcement technology developed by the
project has been tested by the China Shipbuilding Industry Non-destructive Inspection Center (with CMA, CNAL qualification), which has effectively improved the residual stress distribution of equipment and component surfaces.
Pronutation and application
project results successfully applied to Yangzi Petrochemical, Tianhua and many other large petrochemical enterprises of large ethylene, key equipment of large fertilizer, MVR centrifugal compressor turbine, nuclear spent fuel storage plate, etc., improve the equipment resistance to stress corrosion, resistance to resistance Fatigue performance solves the long-standing problems of corrosion and fatigue in key equipment in the process industry, avoids uncrafted accident parking of key production equipment, prolongs the life of safe service, shortens the maintenance time, reduces the cost of equipment inspection and maintenance, provides an important guarantee for the long-term non-parking operation of equipment, and produces significant social and economic benefits. The project established a technical system for special surface impact reinforcement treatment, improved the technical level of special surface impact strengthening anti-stress corrosion and fatigue technology in China, and promoted the technological progress of related industries.