文档介绍：金属原位分析仪的研制
陈吉文杨新生常莉丽胡炎袁良经王海舟
(钢铁研究总院,北京,100081.)
摘要本仪器以单次火花放电理论及信号分辨提取技术为基础,自主开发了单次火花放电光谱高速采集技术、单次火花放电光谱数字解析技术、无预燃连续激发同步扫描定位技术,并据此获得数以百万计与材料原位置相对应的各元素原始含量及状态信息,建立了统计偏析度、统计均匀度、统计致密度和夹杂物定量分析数学模型,首次采用统计解析的方法定量表征材料的偏析度、疏松度、夹杂物分布等指标,开创了金属原位统计分布分析新理论、新方法、新技术,并研制成功世界首台金属原位分析仪,实现了金属材料较大尺度范围内各组分的位置分布、状态分布及定量分布的准确信息(即对材料的化学成分、元素分布、偏析度、疏松度以及夹杂物分布的快速准确测定),具有原始性、原位性及统计性的特点,可作为冶金工艺材料研究及质量判据。
关键词金属原位分析仪原位统计分布分析偏析夹杂物分布
Development of Original Position Analyzer for Metal
Jiwen Chen Xinsheng Yang Lili Chang Yan Hu Liangjing Yuan Haizhou Wang
( Central Iron & Steel Research Institute, Beijing 100081, China;)
ABSTRACT The instrument relates to a new analysis method to determine positions and states of metal materials. It includes the continuous steps of: using metallic discharge electrodes to perform the continuous spark discharge on the sample which is moved relative to the electrodes; dispersing the excited spark spectrum to form the linear spectrum with preset wavelength; recording the positions of every single spark discharge and the spectrum signals rapidly and at real-time; transferring the spectrum signals into electrical signals which are then inputted into signal memory; using puter to statistically analyze the linear spectrum obtained from the single spark discharge, by which the distribution of positions, segregation, porosity and inclusion in the sample are resulted and then