铁路机车车轮的强韧化机理

doi:10.13251/j.issn.0254-6051.2023.07.047

金属热处理 ›› 2023, Vol. 48 ›› Issue (7): 283-286.DOI: 10.13251/j.issn.0254-6051.2023.07.047

铁路机车车轮的强韧化机理

贾托胜^1,2, 刘翠荣¹, 张晓峰², 魏华成², 张磊², 高康²

1.太原科技大学学院, 山西太原 030024;
2.太原重工轨道交通设备有限公司, 山西太原 030024

收稿日期:2022-11-21 修回日期:2023-04-13 出版日期:2023-07-25 发布日期:2023-09-04
作者简介:贾托胜(1984—),男,高级工程师,博士,主要研究方向为轨道交通车辆用车轮材料及热处理,E-mail:jiatuosheng123@163.com。

Strengthening and toughening mechanism of railway locomotive wheel

Jia Tuosheng^1,2, Liu Cuirong¹, Zhang Xiaofeng², Wei Huacheng², Zhang Lei², Gao Kang²

1. Taiyuan University of Science and Technology, Taiyuan Shanxi 030024, China;
2. Taiyuan Heavy Industry Railway Transit Equipment Co., Ltd., Taiyuan Shanxi 030024, China

Received:2022-11-21 Revised:2023-04-13 Online:2023-07-25 Published:2023-09-04

摘要/Abstract

摘要： 通过力学性能试验、夹杂物和显微组织分析研究了添加微量合金元素对提高车轮钢强度、硬度的效果。结果表明,试验钢的强硬度较高,但冲击性能不满足标准要求,其原因是合金元素的添加使钢中形成了大量复合夹杂物,对车轮的韧性造成不利影响。另外,合金微观成分偏析造成车轮中出现少量异常组织,也可能对车轮的韧性造成不利影响。

关键词: 机车车轮, 强韧化, 机理, 改进

Abstract: Effect of minor added alloying elements on improving the strength and hardness of railway wheel steel was studied by means of mechanical properties test and inclusions and microstructure analysis. The results show that the strength and hardness of the tested steel are high, but the impact property is poor, which cannot meet the standard requirements. The addition of alloying elements causes the formation of a large number of composite inclusions in the steel, which has an adverse effect on the toughness of the wheel. In addition, a small amount of abnormal microstructure in the wheel caused by the segregation of the microalloying elements may also have an adverse effect on the toughness of the wheel.

Key words: locomotive wheel, strengthening and toughening, mechanism, technology

中图分类号:

TG142.1

贾托胜, 刘翠荣, 张晓峰, 魏华成, 张磊, 高康. 铁路机车车轮的强韧化机理[J]. 金属热处理, 2023, 48(7): 283-286.

Jia Tuosheng, Liu Cuirong, Zhang Xiaofeng, Wei Huacheng, Zhang Lei, Gao Kang. Strengthening and toughening mechanism of railway locomotive wheel[J]. Heat Treatment of Metals, 2023, 48(7): 283-286.

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铁路机车车轮的强韧化机理

Strengthening and toughening mechanism of railway locomotive wheel

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