加热速率和配分时间对低碳Q&P钢组织及性能的影响

doi:10.11896/cldb.20040069

Abstract
Figure/Table
References
Related Citation (2)

Download:

Full Text ( PDF ) (4394KB)

Suppl. Info.
Export: BibTeX | EndNote (RIS)

Abstract The third generation of high-strength Q&P (quenching and partitioning) steel,as a new type of heat-treated steel, has high strength and high elongation owning to its martensite and retained austenite microstructure. In this paper, the microstructure and properties of Q&P steel were studied by using Gleeble thermal simulation tester to change the heating rate (5 ℃/s, 50 ℃/s, 300 ℃/s) and partitioning time (10 s, 60 s). The morphology, size, and phase of the Fe-0.23C-1.55Si-1.92Mn-0.04Al steel were studied by scanning electron microscope (SEM), electron backscatter diffraction (EBSD), and X-ray diffraction (XRD). The tensile test was performed by a Gleeble thermal simulation tester. The results show that, increasing the heating rate helps refine the austenite grains, and the size of the secondary martensite after secondary quen-ching to room temperature also decreases. When the partition time is 10 s and 60 s, the heating rate is beneficial to increase the content of retained austenite. When the heating rate is 300 ℃/s and the partition time is 60 s, the product of strength and elongation of the sample can reach 37.9 GPa·%.

Key words： Q&P steel heating rate quenching and partitioning product of strength and elongation

Published: 01 July 2021

CLC number:

TF01

Fund:National Natural Science Foundation of China (051301105, 051471105).

About author:: Zhicheng Zuo graduated from Chongqing University of Arts and Sciences with a bachelor's degree in enginee-ring in June 2017, and received his M.S. degree in June 2020 from Shanghai University of Engineering Science. His main research direction is the microstructure and mechanical properties of high-strength steel.
Yu Su, associate professor, received her Ph. D. degree in materials from Shanghai University in 2012. She has mainly been engaged in the research on the forming properties of high-strength steels, the phases of metal thermodynamic calculations and the research of supercapacitors in recent years. She had published more than 20 articles in important journals at home and abroad.

	Service
	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	ZUO Zhicheng
	SU Yu
	LI Jun

Cite this article:

ZUO Zhicheng,SU Yu,LI Jun. Effect of Heating Rate and Partitioning Time on Microstructure and Properties of Low Carbon Q&P Steel[J]. Materials Reports, 2021, 35(12): 12156-12160.

URL:

http://www.mater-rep.com/EN/10.11896/cldb.20040069 OR http://www.mater-rep.com/EN/Y2021/V35/I12/12156

1 Isasti N, Badiola D J, Taheri M L, et al. Metallurgical & Materials Transactions A, 2014, 45(11), 4960.
2 Goon P K C, Greenberg D C, Igali L, et al. British Journal of Dermatology, 2017, 176(5), 1351.
3 Landier J, Kajeechiwa L, Thwin M M, et al. Wellcome Open Research, 2017, 2, 81.
4 Na J, Huang Y, Wu X, et al. IEEE Transactions on Control Systems Technology, 2017, 26(6), 2063.
5 Hardwick A P, Outteridge T. The International Journal of Life Cycle Assessment, 2016, 21(11), 1616.
6 Speer J, Matlock D K, Cooman B C D, et al. Acta Materialia, 2003, 51(9), 2611.
7 Toji Y, Miyamoto G, Raabe D. Acta Materialia, 2015, 86, 137.
8 Celada-Casero C, Kwakernaak C, Sietsma J, et al. Materials & Design, 2019, 178, 107847.
9 Valdes-Tabernero M A, Celada-Casero C, Sabirov I, et al. Materials Characterization, 2019, 155, 109822.
10 Deng J, Sun X J, Zhang T, et al. Materials Reports B: Research Papers, 2020, 34(5), 10126 (in Chinese).
邓杰, 孙新军, 张涛, 等. 材料导报:研究篇, 2020, 34(5), 10126.
11 Zhu B, Liu Z, Wang Y, et al. Metallurgical & Materials Transactions A, 2018, 49(4), 1304.
12 Pierce D T, Coughlin D R, Clarke K D, et al. Acta Materialia, 2018, 151, 454.
13 Hetzner D W. Microscopy and Microanalysis, 2003, 9, 710.
14 Xie Z J, Han G, Yu Y S, et al. Materials Characterization, 2019, 153(6), 208.
15 Seo E J, Cho L, Cooman B C D. Metallurgical & Materials Transactions A, 2014, 45(9), 4022.
16 Li Y J, Choi P, Borchers C, et al. Acta Materialia, 2011, 59(10), 3965.
17 Li Y J, Choi P P, Goto S, et al. Acta Materialia, 2012, 60(9), 4005.
18 Xu Z Y, Li X M. Acta Metallurgica Sinica, 1983, 19(2), 7 (in Chinese).
徐祖耀, 李学敏. 金属学报, 1983, 19(2), 7.
19 Arlazarov A, Bouaziz O, Masse J P, et al. Materials Science and Engineering: A, 2015, 620, 293.
20 Xu Z Y, Li X M. Acta Metallurgica Sinica, 1983, 19(6), 505 (in Chinese).
徐祖耀, 李学敏. 金属学报, 1983, 19(6), 505.
21 Edmonds D V, He K, Rizzo F C, et al. Materials Science and Enginee-ring: A, 2006, 438, 25.
22 Zhou L Y, Liu Y Z, Hu X W, et al. Journal of Iron and Steel Research (International), 2011, 18(s1), 792.
23 Jimenez-Melero E, Dijk N H V, Zhao L, et al. Scripta Materialia, 2007, 56(5), 421.
24 Mohanty R R, Girina O A, Fonstein N M. Metallurgical & Materials Transactions A, 2011, 42(12), 3680.
25 Tan X, Xu Y, Yang X, et al. Materials Science and Engineering: A, 2014, 589,101.