A Review of Current State and Prospect of the Manufacturing and Application of Advanced Hot Stamping Automobile Steels

doi:10.11900/0412.1961.2019.00381

Acta Metall Sin

2020, Vol. 56

Issue (4): 411-428 DOI: 10.11900/0412.1961.2019.00381

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A Review of Current State and Prospect of the Manufacturing and Application of Advanced Hot Stamping Automobile Steels

JIN Xuejun¹(

),GONG Yu¹,HAN Xianhong¹,DU Hao¹,DING Wei¹,ZHU Bin²,ZHANG Yisheng²,FENG Yi³,MA Mingtu³,LIANG Bin³,ZHAO Yan³,LI Yong⁴,ZHENG Jinghua⁴,SHI Zhusheng⁴

^1.School of Materials Science and Engineering, Shanghai Jiaotong University, Shanghai 200240, China
^2.School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
^3.China Automotive Engineering Research Institute Co. , Ltd. , Chongqing 401122, China
^4.Department of Mechanical Engineering, Imperial College London, London SW7 2AZ, UK

Cite this article:

JIN Xuejun,GONG Yu,HAN Xianhong,DU Hao,DING Wei,ZHU Bin,ZHANG Yisheng,FENG Yi,MA Mingtu,LIANG Bin,ZHAO Yan,LI Yong,ZHENG Jinghua,SHI Zhusheng. A Review of Current State and Prospect of the Manufacturing and Application of Advanced Hot Stamping Automobile Steels. Acta Metall Sin, 2020, 56(4): 411-428.

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Abstract

Ultrahigh strength steels are highly competitive materials for vehicles to concurrently meet the increasing demand of the weight reduction and passenger safety. Hot stamping is the key forming technology to manufacture automobile components with high strength. Hot stamping steel and its manufacturing technology experienced a fast development in the past decade. This paper reviewed the state of the art of the manufacturing and applications of hot stamping steels/components in the following aspects: (1) hot stamping steels (from traditional MnB steels to recently newly developed hot stamping steels); (2) forming technologies (from traditional hot stamping process to industry 4.0 intelligent production); (3) novel hot stamping + quenching & partitioning (Q&P) process and fundamentals of deformation assisted heat treatments; (4) simulation techniques for hot stamping process (modeling of the temperature-stress field, microstructure field and simulation of the manufacturing process); (5) the assessments of in-service performance of hot stamped components. Finally, the trends of the development of hot stamping steels and related forming technologies in the future will be discussed.

Key words: hot stamping steel hot stamping technology hot stamping+Q&P process modeling in-service performance

Received: 11 November 2019

ZTFLH:

TG142

Fund: National Natural Science Foundation of China(U1564203);National Natural Science Foundation of China(51901128);National Key Research and Development Program of China(2017YFB0304401);Funds for International Cooperation and Exchange of the National Natural Science Foundation of China(51911530204);The Royal Society International Exchanges Cost Share 2018 China (No.IEC\NSFC\181414), Outstanding Academic Leaders Program of Shanghai(18XD1402200);Startup Fund for Youngman Research at SJTU

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	Articles by authors
	Xuejun JIN
	Yu GONG
	Xianhong HAN
	Hao DU
	Wei DING
	Bin ZHU
	Yisheng ZHANG
	Yi FENG
	Mingtu MA
	Bin LIANG
	Yan ZHAO
	Yong LI
	Jinghua ZHENG
	Zhusheng SHI

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https://www.ams.org.cn/EN/10.11900/0412.1961.2019.00381 OR https://www.ams.org.cn/EN/Y2020/V56/I4/411

Table 1 Compositions of 22MnB5 steels produced by different steel companies in the world^[4,5,6,7,8]

Table 2 Compositions and mechanical properties after quenching of hot stamping steels with two strength grades of 1800 MPa and 2000 MPa^[9,10]

Table 3 Grades and compositions of low strength high ductility and toughness steels with strength of 500 MPa^[9]

Fig.1 Schematics of hot stamping, quenching and partitioning (HS-Q&P) process and microstructural evolution (A_c3—temperature of all ferrite transform into austenite, M_s—onset of temperature of martensitic transformation, γ—austenite,

α'

—martensite,

α s'

—second martensite, f—volume fraction of each phase, C—carbon content of each phase)Color online

Fig.2 Schematics of deformation induced ferrite transformation-Q&P (DIFT-Q&P) process and microstructural evolution (A_e3—equilibrium critical temperature of full austenitization,α_D—deformation-induced martensite, ΔT—the difference of temperature of all ferrite transform into austenite and paraequilibrium temperature)Color online

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