变形条件对C-Mn钢力学性能的影响机理

doi:10.11896/cldb.20090344

Abstract
Figure/Table
References
Related Citation (15)

Download:

Full Text ( PDF ) (3521KB)
Export: BibTeX | EndNote (RIS)

Abstract Akind of C-Mn tested steel was tested at high temperature and room temperature by the Gleeble 3500 thermal simulation testing machine and the Instron 8801 testing machine. The mechanical properties of the tested steel were measured and calculated, the fracture morphology and microstructure were observed, and the change rule and mechanism of mechanical properties with tensile temperature and strain rate were analyzed. The results show that, with the increase of tensile temperature and the decrease of strain rate, the yield strength and tensile strength of the tested steel gradually decrease, and the yield ratio has an upward trend. The reduction of area appears a minimum at 720 ℃, and it increases with the increase of strain rate. The non-equilibrium grain boundary segregation of impurity atoms caused by temperature and stress affects the plasti-city of the tested steel.

Key words： C-Mn steel stretching at elevated temperature mechanical property non-equilibrium grain boundary segregation

Published: 25 November 2021 Online: 2021-12-13

CLC number:

TG142

Fund:National Natural Science Foundation of China (51871064).

About author: Junlong Mi, master of Wuhan University of Science and Technology, is mainly engaged in the study of tensile mechanical properties and mechanism of metals.
Juan Jia, professor and graduate supervisor of Wuhan University of Science and Technology, is good at texture analysis and research of metal, polymer and other crystal materials. She is mainly engaged in the research of material strengthening, toughening and anisotropy, and has published more than 30 teaching and research papers.

	Service
	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	MI Junlong
	JIA Juan
	SONG Xinli
	WANG Kai
	XU Tingdong

Cite this article:

MI Junlong,JIA Juan,SONG Xinli, et al. Influence Mechanism of Deformation Conditions on Mechanical Properties of C-Mn Steel[J]. Materials Reports, 2021, 35(22): 22146-22150.

URL:

http://www.mater-rep.com/EN/10.11896/cldb.20090344 OR http://www.mater-rep.com/EN/Y2021/V35/I22/22146

1 ISO 6892-2: 2018, Metallic materials-tensile testing-part 2: method of test at elevated temperature. Switzerland, 2018.
2 Lu C Z, Li J Y, Gao Z J, et al. Materials Reports A: Review Papers, 2018, 32(5), 1639(in Chinese).
卢成壮, 李静媛, 高智君, 等. 材料导报:综述篇, 2018, 32(5), 1639.
3 Kumar G D C, Kumar V A, Gupta R K, et al. Metallurgicaland Mate-rials Transactions A, 2019, 50A(1), 161.
4 Rayes M M E, El-Danaf E A. Materials Science & Engineering A, 2017, 697, 203.
5 Huang Y C, Lin Y C, Deng J, et al. Materials and Design, 2014, 53, 349.
6 Luo L, Li L R, Huang L Y, et al. Hot Working Technology, 2014, 43(10), 79(in Chinese).
罗龙, 李丽荣, 黄丽颖, 等. 热加工工艺, 2014, 43(10), 79.
7 Guo X F, Weng X X, Jiang Y, et al. High Temperature Materials and Processes, 2017, 36(9), 913.
8 Choudhary B K, Christopher J. International Journal of Pressure Vessels and Piping, 2019, 171, 153.
9 Aghaie-Khafri M, Zargaran A. Materials Science and Engineering A, 2010, 527, 4727.
10 Suzuki H G. ISIJ International, 1997, 37(3), 250.
11 Nagasaki C, Aizawa A, Kihara J. Transactions ISIJ, 1987, 27, 506.
12 Kang D T, Guo C X. Atlas of microstructure transformation and properties of engineering steel, China Machine Press, China, 1992(in Chinese).
康大韬, 郭成熊. 工程用钢的组织转变与性能图册, 机械工业出版社, 1992.
13 Lin H G, Fu D Z. Austenite transformation diagram of steel: principle, testing and application, China Machine Press, China, 1988(in Chinese).
林慧国, 傅代直. 钢的奥氏体转变曲线: 原理, 测试与应用, 机械工业出版社, 1988.
14 Sen D D. Effects of grain boundary segregated phosphorus on hot ductility and temper embrittlement of 2.25Cr-1.0Mo steel. Master's Thesis, Wuhan University of Science and Technology, China, 2002(in Chinese).
沈冬冬. 磷的晶界偏聚对2.25Cr-1.0Mo钢热塑性及回火脆性的影响. 硕士学位论文, 武汉科技大学, 2002.
15 Xu T D. Kinetics of non-equilibrium grain boundary segregation and intergranular brittle fracture: mechanism of uncertainty in tensile mechanical properties testing, Science Press, China, 2017(in Chinese).
徐庭栋. 非平衡晶界偏聚动力学和晶间脆性断裂: 含拉伸力学性能测试不确定性机理, 科学出版社, 2017.
16 Xu T D. Journal of Materials Science, 2002, 35, 5621.
17 Xu T D, Cheng B Y. Progress in Materials Science, 2004, 49, 109.
18 Xu T D, Yu H Y, Liu Z J, et al. Measurement, 2015, 66, 1.