Spark spectroscopic analysis method for content distribution of inclusions on surface of large-size metal material

• Main Authors: JIA YUNHAI, SHENG LIANG, YUAN LIANGJING, YU LEI, ZHANG QIAOCHU
• Format: Patent
• Language: Chinese; English
• Published: 24.01.2023
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

The invention discloses a spark spectrum analysis method for inclusion content distribution on the surface of a large-size metal material, which comprises the following steps of: analyzing the surface of the large-size metal material through spark discharge continuous excitation scanning to obtain solid solution of inclusion elements on the surface of the large-size metal material and spectral intensity mixed distribution data of the inclusion; further obtaining a spectral intensity relative frequency distribution diagram; performing normal distribution and Gumbel extreme value distribution peak-splitting fitting processing on the spectral intensity relative frequency distribution diagram to obtain Gumbel extreme value distribution data of the spectral intensity of the inclusions; obtaining the number and size information of inclusions of the small sample, and obtaining the size information of the maximum inclusions; and associating the inclusion size information and the maximum inclusion size information of