高锰钢材料塑性变形硬化机理及其改性研究

doi:10.16731/j.cnki.1671-3133.2018.04.015

现代制造工程 ›› 2018, Vol. 451 ›› Issue (4): 84-89.doi: 10.16731/j.cnki.1671-3133.2018.04.015

高锰钢材料塑性变形硬化机理及其改性研究

安虎平^{1, 2}, 芮执元¹

1 兰州城市学院培黎机械工程学院, 兰州 730070;
2 兰州理工大学机电工程学院, 兰州 730050

收稿日期:2016-12-02 出版日期:2018-04-20 发布日期:2018-07-18
通讯作者: 甘肃省科技计划资助项目(145RJZA134);兰州城市学院校长科研创新基金项目(LZCU-XZ2014-01);兰州市科技计划资助项目(2015-3-99);甘肃省重点研发计划-工业类项目(17YF1GA001)
作者简介:安虎平, 博士生, 教授, 研究方向:金属材料加工, 高速切削理论与技术。E-mail:ahp2004@126.com

Research on the hardening mechanism of high manganese steel in plastic deformation and the modifying property of it

An Huping^{1, 2}, Rui Zhiyuan¹

1 School of Bailei Mechanical Engineering, Lanzhou City University, Lanzhou 730070, China;
2 College of Mechano-Electronic Engineering, Lanzhou University of Technology, Lanzhou 730050, China

Received:2016-12-02 Online:2018-04-20 Published:2018-07-18

摘要/Abstract

摘要： 以高锰钢材料加工硬化特性为研究目标, 探讨其硬化机理及其改性方法。分析高锰钢的化学成分及其各元素的作用, 其中锰和碳元素的含量及配比对高锰钢的塑性、韧性和加工硬化特性有重要影响;含锰量为10 %～14 %时高锰钢的强度和韧性最好, 变形硬化效果显著;含碳量为0.9 %～1.4 %时其耐磨性较好, 锰/碳比率应为10;通过高锰钢晶体滑移变形几何模型的分析来研究其变形硬化机理。结果显示, 剧烈的塑性变形能量使高锰钢表面组织由奥氏体转变为马氏体, 从而引起表面硬度和耐磨性的显著提高;晶粒粗大和碳化物组织对钢材力学性能的不利影响可通过适当控制钢的熔炼及热处理工艺来加以改善。

关键词: 高锰钢, 硬化机理, 塑性变形, 改性

Abstract: Taking the characteristic of work hardening of the material for high manganese steel as an object of research, it probed into the hardening mechanism and methods of improving property of high manganese steel.By analyzing the chemical component of high manganese steel and the effect of each element on steel, it shows that the contents of Manganese (Mn) and Carbon (C) elements and the rate of Mn/C have important roles on the plasticity, toughness and work-hardening ability of high manganese steel.The high manganese steel has high strength and toughness when the content of Mn is 10 %～14 %, appearing high effect of deformation hardening.The abrasive resistance is high when contents of C is 0.9 %～1.4 %, and the rate of Mn/C is 10 or so.Deformation-hardening mechanism was researched by analyzing the geometric model of crystals shear-slippage on the surface.Results show that the energy of strong plastic deformation could make the surface structure transform from austenite into martensite phase, which improves the hardness and abrasion performance.Negative effects of big crystals and carbide structure on steel can be improved by proper controlling processes of smelting and heat treatment.

Key words: high manganese steel, hardening mechanism, plastic deformation, modification

中图分类号:

TG142.72

安虎平, 芮执元. 高锰钢材料塑性变形硬化机理及其改性研究[J]. 现代制造工程, 2018, 451(4): 84-89.

An Huping, Rui Zhiyuan. Research on the hardening mechanism of high manganese steel in plastic deformation and the modifying property of it[J]. Modern Manufacturing Engineering, 2018, 451(4): 84-89.

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高锰钢材料塑性变形硬化机理及其改性研究

Research on the hardening mechanism of high manganese steel in plastic deformation and the modifying property of it

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