金属热处理 ›› 2022, Vol. 47 ›› Issue (1): 284-289.DOI: 10.13251/j.issn.0254-6051.2022.01.048

• 测试与分析 • 上一篇    下一篇

基于激光诱导击穿光谱表征GCr15钢的硬度

李铸1,2, 张庆永1, 孔令华1,2, 练国富1, 杨金伟1,2   

  1. 1.福建工程学院 机械与汽车工程学院, 福建 福州 350118;
    2.数字福建工业制造物联网实验室, 福建 福州 350118
  • 收稿日期:2021-08-19 修回日期:2021-10-13 出版日期:2022-01-25 发布日期:2022-02-18
  • 通讯作者: 孔令华,教授,博士,E-mail: 15392030898@163.com
  • 作者简介:李 铸(1995—),男,硕士研究生,主要研究方向为金属材料性能检测,E-mail: Rheichoo@163.com。
  • 基金资助:
    福建省科技重大专项专题项目(2020HZ03018); 福建省教育科研专项(GY-Z21004)

Characterization of hardness for GCr15 steel based on laser-induced breakdown spectroscopy

Li Zhu1,2, Zhang Qingyong1, Kong Linghua1,2, Lian Guofu1, Yang Jinwei1,2   

  1. 1. School of Mechanical and Automotive Engineering, Fujian University of Technology, Fuzhou Fujian 350118, China;
    2. Digital Fujian Industrial Manufacturing IoT Lab, Fuzhou Fujian 350118, China
  • Received:2021-08-19 Revised:2021-10-13 Online:2022-01-25 Published:2022-02-18

摘要: 利用激光诱导击穿光谱对GCr15钢不同温度回火后的光谱稳定性、特征谱线强度、等离子体温度和电子密度的变化趋势进行了分析,研究了特征谱线强度比、等离子体温度和硬度之间的关系。结果表明:不同温度回火后的样品的光谱特性和等离子体特性存在差异,但原子谱线强度均随回火温度的升高呈上升趋势,离子谱线强度均随回火温度升高呈下降趋势;特征谱线强度比和等离子体温度与样品的硬度均呈现出较好的正相关关系。表明GCr15钢热处理之后硬度可以通过激光诱导击穿光谱法测量。

关键词: 激光诱导击穿光谱, 热处理, 光谱分析, 等离子体温度, GCr15钢

Abstract: Spectral stability, characteristic line intensity, plasma temperature and electron density of GCr15 steel after tempering at different temperatures were analyzed by using laser-induced breakdown spectroscopy method, and the relationships between characteristic line intensity ratio, plasma temperature and hardness were studied. The results show that the spectral and plasma characteristics of the specimens tempered at different temperatures are different, however, with the increase of tempering temperature, the atomic spectral line intensity increases, while the ion spectral line intensity decreases. Meanwhile, The characteristic line intensity ratio and plasma temperature have good positive correlation with the hardness of the specimens, which shows that the hardness of the GCr15 steel after heat treatment can be measured by laser-induced breakdown spectroscopy method.

Key words: laser-induced breakdown spectroscopy, heat treatment, spectral analysis, plasma temperature, GCr15 steel

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