钒、铬微合金化对高碳钢微观组织与力学性能的影响

doi:10.11896/j.issn.1005-023X.2017.08.016

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Abstract In order to develop a high-carbon steel wire rod with better performance,new steels were designed and developed using chromium and/or vanadium micro-alloying method on the basis of the primary 70 steel. In addition, the influences of chromium and/or vanadium on microstructure and mechanical properties of the experimental steels were analyzed. After chromium and vanadium micro-alloying separately, the volume fraction of sorbite increased, lamellar space decreased, and the original austenite grain refined. Compared to 70 steel, chromium content and vanadium content increased, the tensile strength of the steels gradually improved and the corresponding elongation decreased. Complex micro-alloying of chromium and vanadium obviously optimized the microstructure of the steel, and the optimization effect is significantly better than individual micro-alloying of chromium and vanadium. By contrast with 70 steel, the strength of the steel produced by complex micro-alloying of chromium and vanadium notably increased and the plasticity decreased slightly. By comparison with 80 steel, the strength and plasticity of the steel prepared by complex micro-alloying of chromium and vanadium increased.

Key words： high carbon steel chromium vanadium micro-alloying microstructure mechanical property

Published: 02 May 2018

CLC number:

TG115

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	Articles by authors
	YUAN Xinjian
	LI Ci
	WANG Haodong
	LIANG Xuebo
	ZENG Dingding
	XIE Chaojie

Cite this article:

YUAN Xinjian,LI Ci,WANG Haodong, et al. Effects of Micro-alloying of Chromium and Vanadium on Microstructure and Mechanical Properties of High Carbon Steel[J]. Materials Reports, 2017, 31(8): 76-81.

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http://www.mater-rep.com/EN/10.11896/j.issn.1005-023X.2017.08.016 OR http://www.mater-rep.com/EN/Y2017/V31/I8/76

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