METALS AND METAL MATRIX COMPOSITES |
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Research Status and Development Trend of New Automotive Q&P Steel |
DU Jinliang, FENG Yunli, ZHANG Yinglong
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Key Laboratory of the Ministry of Education for Modern Metallurgy Technology, College of Metallurgy and Energy, North China University of Science and Technology, Tangshan 063210, China |
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Abstract With the increasing of atmospheric environmental problems and the global energy crisis, energy conservation and emission reduction will remain a global theme in the coming decades. The automotive industry is required to reduce body weight without reducing safety in order to achieve the goal of energy saving and emission reduction. The lightweight of automobiles has promoted the development of advanced high-strength steel from the first generation to the third generation today. Advanced high-strength steel is mainly through the combination of alloy composition design, hot rolling, cold rolling, heat treatment and other processes to adjust its microstructure to achieve lightweight and safety, and its internal deformation mechanism research is more helpful to grasp the performance control process. The disadvantages of the first and second generation automobile steels mainly include the following two aspects: On the one hand, the main use of ferrite and other soft phases as the matrix leads to poor comprehensive mechanical properties, making it difficult to achieve true weight reduction; on the other hand, the second the improvement of the performance of the automotive steel is at the expense of the addition of a large number of alloying elements, which increases the production cost, and it is difficult to finely control the casting and heat treatment processes in the commercial production, and there are many disadvantages. Therefore, the third-generation automotive steel has achieved sound development, and its comprehensive mechanical properties have filled the gap between the first and second-generation automotive steels. As a typical representative, Q&P steel uses the quenching-partitioning process to finely control the multi-phase, metastable and multi-scale microstructure, and obtain a mixed structure of martensite, ferrite and austenite. Compared with the second generation, the third generation automobile steel has a lower alloying element content, which meets the requirements of reducing costs. The hybrid structure of FCC and BCC brings the characteristics of high-strength plastic product (tensile strength × elongation), which makes the performance of the third-generation automobile steel close to the target level of the times. This article summarizes the development history of new Q&P steels for automobiles, introduces the role of alloying elements, springback during forming, and explains the internal principles of process optimization according to the order of heat treatment process parameters (heating temperature, quenching temperature, distribution temperature, distribution time). Summarized the toughness mechanism of plastic deformation-“four effects, two mechanisms”, considered the importance of dynamic mechanical properties to practical engineering applications, and put forward new Q&P steel strengthening recommendations based on major research results-grain boundary phase transformation strengthen. Finally, it describes the problems facing the current development and looks forward to the field.
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Published: 31 August 2021
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Fund:General Program of National Nature Science Foundation of China(51974134, 51674123), Natural Science Foundation of Hebei Province(E2017209237). |
About author:: Jinliang Du, graduate student of North China University of Science and Technology(NCST), obtained a bac-helor’s degree in Metal Materials and Engineering from North China University of Science and Technology from September 2014 to June 2018. At present, his main research direction is the third generation automotive steel lightweight. Yunli Feng, professor of North China University of Science and Technology, doctoral tutor, academic lea-der of national specialty school-metal materials enginee-ring, served in the Department of Metal Materials and Processing Engineering of North China University of Science and Technology (NCST) from 2001 to the pre-sent. She has published more than 130 papers in domestic and international journals, published 2 textbooks, and obtained 7 national invention patents. Her team’s main research interests include: magnetic materials, ultra-fine/nanocrystalline metal materials, new materials processing and tissue performance control, material surface treatment and development of high-performance steel materials. In recent years, her team has undertaken 6 projects of the National Natural Science Foundation of China, 7 provincial and ministerial projects such as the Outstanding Youth Fund and Support Program of Hebei Province, and more than 30 provincial and horizontal scientific research projects. She has won 2 second prizes for scientific and technological progress in Hebei Province, 3 third prizes, and 1 third prize for national metallurgical science and technology. |
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1 Hagen I, Wieland H J. In: Proceedings of the Conference on Steels in Cars and Trucks, Germany,2005,pp. 226. 2 Matlock D K, Brautigam V E, Speer J G. Materials Science Forum,2003,426(4),1089. 3 Gerdemann F L H, Speer J G. Materials Science and Technology,2004,1,439. 4 Wang J, Li B, Gu Y, et al. Materials Science and Engineering: A,2020,772,138765. 5 Wang M, Huang M X. Acta Materialia,2020,188,551. 6 Li Y, Li W, Xu C, et al. Materials Science and Engineering: A,2020,781,139207. 7 Xu Y S, Gong Y, Du H, et al. International Journal of Lightweight Materials and Manufacture,2020,3(1),26. 8 Lehnert R, Weidner A, Schimpf C, et al. Materialia,2019,8,100498. 9 Ebner S, Suppan C, Stark A, et al. Materials and Design,2019,178,107862. 10 Nyyssönen T, Peura P, Williamson D, et al. Materials Characterization,2019,148,71. 11 Li Y, Li W, Na M, et al. Acta Materialia,2017,139,96. 12 Cooman B C D. Metallurgical and Materials Transactions A,2016,48,1. 13 Diego-Calderón I D, Rodriguez-Calvillo P, Lara A, et al. Materials Science & Engineering: A,2015,641,215. 14 Suh D W, Ryu J H, Joo M S, et al. Metallurgical and Materials Transactions A,2013,44(1),286. 15 Hajyakbary F, Sietsma J, Petrov R H, et al. Scripta Materialia,2017,137,27. 16 Lee Y K, Han J. Materials Science and Technology,2015,7(31),843. 17 Zhang X F, Yang H, Li J X, et al. Materials Reports B: Research Papers,2018,32(8),107(in Chinese). 章小峰,杨浩,李家星,等.材料导报:研究篇,2018,32(8),107. 18 Shao C, Hui W, Zhang Y, et al. Materials Science and Engineering: A,2017,682,45. 19 Sohn S S, Lee B J, Lee S, et al. Acta Materialia,2013,61(13),5050. 20 Lee S, Estrin Y, Cooman B C. Metallurgical and Materials Transactions A,2013,44(7),3136. 21 Yan S, Liu X, Liu W J, et al. Materials Science and Engineering: A,2017,684,261. 22 Moor E D, Lacroix S, Clarke A J, et al. Metallurgical and Materials Transactions A,2008,39(11),2586. 23 Hajyakbary F, Sietsma J, Petrov R H, et al. Scripta Materialia,2017,137,27. 24 Hajyakbary F, Santofimia M J, Sietsma J. Advanced Materials Research,2014,829,100. 25 Mola J, Cooman B C D. Scripta Materialia,2011,65(9),834. 26 Tsuchiyama T, Tobata J, Tao T, et al. Materials Science and Enginee-ring: A,2012,532,585. 27 Diego-Calderón I D, Rodriguez-Calvillo P, Lara A, et al. Materials Science and Engineering: A,2015,641,215. 28 Xu Z Y. Heat Treatment,2007,22(1),1(in Chinese). 徐祖耀.热处理,2007,22(1),1. 29 Zhou L, Tang G, Ma X, et al. Materials Characterization,2018,146,258. 30 Li Y, Li W, Xu C, et al. Materials Science and Engineering: A,2020,781,139207. 31 Li Y, Li W, Min N, et al. Acta Materialia,2017,139,96. 32 Cai H L, Chen P, Oh J K, et al. Scripta Materialia,2020,178(15),77. 33 Xu Y, Gong Y, Du H, et al. International Journal of Lightweight Mate-rials and Manufacture,2020,3(1),26. 34 Allain S, Chateau J P, Bouaziz O. Materials Science and Engineering: A,2004,387(1),143. 35 De B L, Mendez J. Procedia Engineering,2010,2(1),2171. 36 De K D, Santofimia M J, Shi H, et al. Acta Materialia,2015,90,161. 37 Thomas G A, Speer J G. Materials Science and Technology,2014,30(9),998. 38 Li W, Gao H, Nakashima H, et al. International Journal of Minerals Metallurgy and Materials,2016,23(8),906. 39 Behera A K, Olson G B. Scripta Materialia,2018,147,6. 40 Toji Y, Matsuda H, Herbig M, et al. Acta Materialia,2014,65,215. 41 Seo E J, Cho L, Cooman B C D. Acta Materialia,2016,107,354. 42 Rong Y H, Cheng N L. Acta Metallurgica Sinica,2017,53(1),1(in Chinese). 戎咏华,陈乃录.金属学报,2017,53(1),1. 43 Song C H. Investigation of competitive mechanism during partitionning and deformation coordination mechanism of I&QP steel. Ph.D. Thesis, University of Science and Technology Beijing, China,2018(in Chinese). 宋成浩.I&QP钢在配分时的竞争机制及变形协调机理的研究.博士学位论文,北京科技大学,2018. 44 Xiong X C, Chen B, Huang M X, et al. Scripta Materialia,2013,68(5),321. 45 Li J, Weng G J, Chen S, et al. International Journal of Plasticity,2017,88,89. 46 Jiang F, Takaki S, Masumura T, et al. International Journal of Plasticity,2020,129,102700. 47 Meiners T, Frolov T, Rudd R E, et al. Nature,2020,579,375. 48 Xia P, Vercruysse F, Petrov R, et al. Materials Science and Engineering: A,2019,745,53. 49 Xu Y, Hu Z, Zou Y, et al. Materials Science and Engineering: A,2017,688,40. 50 Liu L, Yu Qin, Wang Z, et al. Science,2020,188,551. 51 Yan L C, Xu B Y. Mechanics in Engineering,2002,24(3),41. 52 Lems W. Physica,1962,28(4),445. 53 Yang M, Akiyama Y, Sasaki T. Journal of Materials Processing Technology,2004,151(1),232. 54 Perez R, Benito J A, Prado J M. ISIJ International,2005,45(12),1925. 55 Benito J A, Manero J M, Jorba J, et al. Metallurgical and Materials Transactions A,2005,36(12),3317. 56 Vin L J D, Streppel A H, Singh U P, et al. Journal of Materials Proces-sing Technology,1996,57(1),48. |
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