Cheng Guoguang, male, born in November 1964, is from Wujin, Jiangsu. Professor, doctoral supervisor. Formerly the director of the Department of Iron and Steel Metallurgy, School of Metallurgy and Ecological Engineering, University of Science and Technology Beijing, he now joins the State Key Laboratory of New Iron and Steel Metallurgy Technology, University of Science and Technology Beijing, as the leader of the "High Temperature Process Reaction Mechanism and Dynamics" echelon, and created the "Special Steel Metallurgy Research Group" ". At the same time, he serves as the deputy director of the Special Steel Continuous Casting Society of the Chinese Metal Society, a member of the Special Steel Branch of the Chinese Metal Society, and a member of the expert group of the Stainless Steel Long Products Industry Alliance. Basic introduction Chinese name: Cheng Guoguang Foreign name: Guoguang Cheng Nationality: Chinese Place of birth: Wujin, Jiangsu Date of birth: November 1964 Occupation: Professor, doctoral supervisor Graduation institution: University of Science and Technology Beijing Representative works: Metallurgical melt and solution calculations Research fields such as thermodynamics: special steel, rare earth steel metallurgy, and new steel materials. Character contributions, character experiences, research directions, ongoing research projects, scientific research results, authorized patents, representative works, character contributions. For a long time, the research direction of the research group has been centered around. He has successively undertaken the “National 973-TiN Nucleation Core Refinement of Ferritic Stainless Steel Solidification Structure”, “National 863-Key Technology Development of Bearing Steel for Major Equipment”, and “Natural Science Foundation Key Project-Fine Equiaxed Crystallization of Steel Solidification Process”. and homogenization basic research", "National Science and Technology Support Project - Ultra-Low Carbon IF Steel RH Efficient Refining Technology" and more than 40 key scientific and technological research projects of the enterprise. Teach undergraduate courses "Outside Furnace Refining and Molten Iron Pretreatment" and "Special Metallurgy", and postgraduate courses "Special Steel Metallurgy". He has made breakthrough progress and made outstanding contributions in the research fields of special steel metallurgy, rare earth steel metallurgy, and new steel materials: he has long been engaged in research on metallurgical technologies related to luxury cars, special steel for high-speed railways, and high-quality stainless steel. In view of the unique role of rare earths in special steel, we successfully developed a rare earth aluminum-iron alloy, obtained a national invention patent, and successfully applied it in actual production. The special steel metallurgy research group unites scientific research teams in metallurgy, materials and other fields and closely integrates with enterprises to carry out technical research on many key steel materials, such as: large-size heavy-duty vehicle crankshaft steel, high surface quality ferritic stainless steel, high-processing Significant progress has been made in varieties such as sexual duplex stainless steel, steel for blades in the energy industry, and spring steel for high-speed railway fasteners. Personal experience: Graduated from Maanshan Iron and Steel Institute (now Anhui University of Technology) from 1980 to 1984. From 1984 to 1987, he worked as furnace director at the Second Steelmaking Plant of Maanshan Iron and Steel Company. In 1987, he began to study for master's and doctoral degrees at the University of Science and Technology Beijing. In March 1993, he received the Doctorate in Iron and Steel Metallurgical Engineering. In 1995, he was appointed as an associate professor at the University of Science and Technology Beijing. In 2003, he was promoted to a professor at the University of Science and Technology Beijing. In 2004, he was named a doctoral supervisor. From July to October 2004, he studied at La Trobe University in Australia. Research direction: (1) Special steel metallurgy. It mainly focuses on research on special steel, especially metallurgical technology related to special steel for luxury cars, high-speed railways and high-quality stainless steel. He has been engaged in research on bearing steel, spring steel, non-quenched and tempered steel, gear steel, stainless steel, silicon steel and other steel types for a long time, and has accumulated a rich theoretical and practical foundation on related metallurgical issues.
(2) Rare earth steel is one of the main research directions of this research group. In view of the unique role of rare earths in special steel, we successfully developed a rare earth aluminum-iron alloy, obtained a national invention patent, and successfully applied it in actual production. The application of rare earth oxides in the steel metallurgical process is also a new topic explored in recent years. Studies have shown that by adding a specific content of rare earth oxides to the refining slag during the molten steel smelting process, the slag refining effect can be significantly improved. The development and application of rare earths in steel materials (especially high-alloy steel) has also achieved good results.
(3) New steel materials. Focusing on the new steel materials that the country is concerned about, this research group has united scientific research teams in metallurgy, materials and other fields and closely integrated with enterprises to carry out technical research, and has made significant progress. For example: high processability duplex stainless steel, high surface quality ferritic stainless steel, steel for crankshafts of large-sized heavy-duty vehicles, steel for blades in the energy industry, steel for high-speed railway elastic bars and other varieties have been studied in depth in terms of technology.
On-going research projects 1. National-level, metallurgical mechanism of high-clean special steel smelting in single-mouth refining furnace (51674024), 2017. 2. National-level, Sino-British international cooperation project: the combination of multi-scale simulation and advanced production equipment to develop long-life ultra-pure Bearing Steel (2015DFG51950), 2015. 3. National level, research on the mechanism of oxide-containing composite core formed during the solidification process of bistable ferrite stainless steel to obtain fine equiaxed crystal structure (51374020), 2014. 4. National level (National "863 "Project"), key technologies for bearing steel for major equipment (2012AA03A503), 2012. 5. Enterprise level, research on inclusions and metallurgical processes in stainless steel pump bodies for nuclear power (2016-598), 2016. 6. Enterprise level, typical Research on electroslag remelting process of special steel varieties (2015-0912), 2014. 7. Enterprise level, research and development of SUH409L stainless steel products (4500348394), 2012. Scientific research results (1) Key technologies of special steel for automobiles. In view of the complexity and technical difficulties of producing special steel through the converter process, we jointly tackled key processes and technologies with enterprises, and the result "Development and Innovation of Process Technology for the Production of High-Quality Special Steel through the Converter Process" won the second prize of the 2009 National Science and Technology Progress Award. .
(2) New refining device outside the furnace. After more than 30 years of continuous research, our research group has developed my country's original single-mouth refining furnace technology, which has achieved successful batch industrial trials. This device has unique advantages in smelting ultra-low carbon steel, silicon steel and ultra-clean steel. And has formed a number of patented technologies. Japan's Nippon Steel has successfully put into production four units of this furnace type (REDA).
(3) Metallurgical slag technology. In view of the complex characteristics of slag control in the smelting process, advanced slag design theories have been used to successfully develop a variety of metallurgical slag systems. It has been widely used in extremely low oxygen smelting, removal of impurity elements, absorption of inclusions, and control of trace elements in steel in high-quality special steel. The research results won the third prize of Metallurgical Science and Technology Progress Award. The monograph "Computational Thermodynamics of Metallurgical Melts and Solutions" was rated as one of the top 100 original science and technology books in my country.
(4) Rare earth iron alloys and rare earth slag systems. We have developed aluminum-based rare earth alloys, obtained national invention patents, and have been widely used in many steel companies. At the same time, "steelmaking refining slag containing rare earth oxides and preparation and use methods" also obtained a national invention patent.
(5)TiN control technology. With the support of the national “973” and “863” projects, we have achieved great success in controlling Ti-containing stainless steel inclusions, refining the solidification structure of special steel with TiN heterogeneous core, and using TiN technology to improve high-energy thick plates and improve welding performance. Through more research, the proposed metallurgical control process has been applied in actual enterprises. Authorized patent 1. Invention patent. A ferrocerium alloy and its preparation and use methods. ZL 201310319579.3．2013． 2. Invention patent． Steel for elastic strips used in high-speed railway fasteners and its smelting and production methods. ZL 201210240788.4．2012． 3. Invention patent． Single-mouth refining furnace smelting ultra-clean steel technology. ZL 201010243658.7．2010． 4. Invention patent． A kind of steelmaking refining slag containing rare earth oxide and its preparation and use method. ZL 201010575226.6．2010． 5. Utility model patent. Multifunctional double-blown single-nozzle refining furnace. ZL 00235854.9． Representative works "New 1500 Questions on Molten Steel Refining and Molten Iron Pretreatment" (Chief Editor) "Practical Technical Manual for Out-of-furnace Refining and Molten Iron Pretreatment" (Associate Editor) "Computational Thermodynamics of Metallurgical Melt" (Second Author) "Metallurgical Melt "Computational Thermodynamics of Solutions" (second author) has published more than 80 papers.
Published in "Metallurgical and Materials Transactions B", "ISIJ International", "Acta. Metallurgical Sinica (English Letters)", "Journal of Iron and Steel Research International", "Steel Research International", "Journal of Univ. of Sci" . and Tech. Beijing" and "Steel" and other important domestic and foreign publications.