Prediction and evaluation of optimum quenching temperature and microstructure in a 1300 MPa ultra-high-strength Q&P steel

doi:10.1007/s42243-020-00535-5

	Prediction and evaluation of optimum quenching temperature and microstructure in a 1300 MPa ultra-high-strength Q&P steel
	Gao, Peng-fei 1,2; Liang, Ju-hua 1,2,3; Chen, Wei-jian 1,2; Li, Feng 1,2; Zhao, Zheng-zhi 1,2
刊名	JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL
	2021-02-11
关键词	Quenching and partitioning Constrained carbon equilibrium Retained austenite Martensite start temperature Plasticity Quenching temperature
ISSN号	1006-706X
DOI	10.1007/s42243-020-00535-5
通讯作者	Zhao, Zheng-zhi(zhaozhzhi@ustb.edu.cn)
英文摘要	The quenching and partitioning steel is the representative of the third generation of advanced high-strength steel. The effect of quenching temperature on the microstructure and mechanical property of ferrite-containing quenching and partitioning steel was studied by intercritical annealing quenching and partitioning processes. When preparing a test steel with a tensile strength of 1300 MPa and total elongation of 19%, it is found that the actual optimum quenching temperature was lower than that calculated according to the constrained carbon equilibrium. The results indicate that the martensite start temperature of the austenite was overestimated when considering the diffusion of carbon only. Austenite grain size which is affected by low temperature and the existence of ferrite during intercritical annealing influenced the optimum quenching temperature. A scheme considering the diffusion of various alloying elements and austenite grain size was proposed and verified. Using this scheme, the optimum quenching temperature of intercritically annealed quenching and partitioning steel with complex microstructures was well predicted.
资助项目	National Key Research and Development Program of Thirteenth Five-Year Plan Period[2017YFB0304400] ; Production and Application Demonstration Platform of New Energy Automotive Material[TC180A6MR-1]
WOS关键词	TRANSFORMATION-INDUCED PLASTICITY ; MECHANICAL-PROPERTIES ; RETAINED AUSTENITE ; MEDIUM-CARBON ; DESIGN ; BEHAVIOR
WOS研究方向	Metallurgy & Metallurgical Engineering
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000617096100004
资助机构	National Key Research and Development Program of Thirteenth Five-Year Plan Period ; Production and Application Demonstration Platform of New Energy Automotive Material
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/120604]
专题	中国科学院合肥物质科学研究院
通讯作者	Zhao, Zheng-zhi
作者单位	1.Univ Sci & Technol Beijing, Collaborat Innovat Ctr Steel Technol, Beijing 100083, Peoples R China 2.Beijing Lab Metall Mat & Proc Modern Transportat, Beijing 100083, Peoples R China 3.Chinese Acad Sci, Inst Solid State Phys, Key Lab Mat Phys, Hefei 230031, Anhui, Peoples R China
推荐引用方式 GB/T 7714	Gao, Peng-fei,Liang, Ju-hua,Chen, Wei-jian,et al. Prediction and evaluation of optimum quenching temperature and microstructure in a 1300 MPa ultra-high-strength Q&P steel[J]. JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL,2021.
APA	Gao, Peng-fei,Liang, Ju-hua,Chen, Wei-jian,Li, Feng,&Zhao, Zheng-zhi.(2021).Prediction and evaluation of optimum quenching temperature and microstructure in a 1300 MPa ultra-high-strength Q&P steel.JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL.
MLA	Gao, Peng-fei,et al."Prediction and evaluation of optimum quenching temperature and microstructure in a 1300 MPa ultra-high-strength Q&P steel".JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL (2021).